Ш ЪЬС ЭФ Ы Ф Х ЦЬ СЪ Ы - Laboratoire de Physique des Hautes ...
Ш ЪЬС ЭФ Ы Ф Х ЦЬ СЪ Ы - Laboratoire de Physique des Hautes ...
Ш ЪЬС ЭФ Ы Ф Х ЦЬ СЪ Ы - Laboratoire de Physique des Hautes ...
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W −×ÙÖÐÙÖÓÙ
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BGO Crystals<br />
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Silicon <strong>de</strong>tector<br />
Luminosity Monitor<br />
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Muon Detector<br />
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p<br />
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λ0[Ñ] ≃<br />
35 A1/3<br />
ρ<br />
≃ 390 A −2/3
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•ÄÔÖÓÓÒÙÖÓÖÖ×ÔÓÒÒØÙÒÔÓ×ØÓÒÐÒÖ×ØÓÒÒ ÊÔÔÐÓÒ×ÕÙÐÕÙ×ÖÐØÓÒ×ÙØÐ×<br />
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= ÔÖt95% ÚÓÖÙÒÔ××ÙÖÙÑÓÒ×5λ0<br />
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ÅØÖÐ λ0Ñ Ñ<br />
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Ð<br />
ρ dE/dx Ec<br />
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Ù ËÒ ÏÈ <br />
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<br />
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ÖÄÕÙØÓÒÃÐÒÓÖÓÒÔÖÑØÖÖÐÔÖÓÔØÓÒ×ÔÖØ ÖÒØ××ÕÙØÓÒ×ÙÑÓÙÚÑÒØÓÒÙØÙÜÕÙØÓÒ×ÃÐÒÓÖÓÒØ ÙÐ××ÔÒ ÐÕÙØÓÒÖÐÐ×ÔÖØÙÐ×ØÒØÔÖØÙÐ××ÔÒ<br />
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dl 2 = dx 2 + dy 2 + dz 2 = <br />
Ð2×ØÙÒÒÚÖÒØÐÓÖ×ØÖÒ×ÓÖÑØÓÒ×ÐÒÖ×ÓÖØÓÓÒÐ×ÙØÝÔ<br />
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Ò×ØÒÌÑÒÒÓÊÐØÚØÝÈÖÒØÓÒÍÒÚÖ×ØÝÈÖ××ÚÓÖÙ××Ö ÖÐÓÒÚÙØ| b<br />
<br />
dx<br />
i=1,3<br />
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x ′ i = ci + <br />
−1ØÔ××ÖÙÒ×Ý×ØÑÖÓØÙÒÙØÚ<br />
bijxj<br />
bijbkj = δik<br />
j<br />
j<br />
| b |= ±Ä×|b|=<br />
dx ′ <br />
i = bijdxj<br />
j<br />
dV ′ = <br />
dx<br />
i=1,3<br />
′ i = ∂(x′ 1, x ′ 2, x ′ <br />
3)<br />
dxi = 1 ×<br />
∂(x1, x2, x3)<br />
i=1,3<br />
<br />
dxi = dV<br />
i=1,3<br />
|
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xi = Ai + λ ˆ Bi i = 1, 2, 3; | ˆ Ò×ÐÖÔÖÇÓÒÓØÒØÙ××ÐÕÙØÓÒÙÒÖÓØ<br />
λÔÖÓÙÖØÐÖÓØ <br />
B |= 1<br />
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bikBk etc...<br />
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x ′ i = A′ i + λ ˆ B ′ i | ˆ B ′ |= 1 ˆ B ′ i = <br />
λBi×ØÖÒ×ÓÖÑÓÑÑ<br />
k<br />
Ai −<br />
dxiÒÔÜ dP = ∂P<br />
dxi<br />
∂xi i<br />
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∂x ′ i<br />
= ∂P<br />
∂x j<br />
∂x j<br />
∂x ′ i
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= ÒÜdxi<br />
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· = gji<br />
∂xi ∂xj v<br />
2<br />
v<br />
v<br />
v v x 1<br />
1 <br />
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a ′ i ∂x<br />
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a ′<br />
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Ø<br />
ÓÒ×ÖÓÒ×Ò×ÇÙÜÚÒÑÒØ×ÒP0 = ØÒÕÙÖÑÒ×ÓÒÒÐÐ×Øs =<br />
ÄÑÓÙÐÐÙÖ×ØÒÕÙÖÑÒ×ÓÒÒÐÐ×Ø<br />
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P0ÇÒÔÙØÑÓÒØÖÖÕÙ<br />
)ØP1ØÜ<br />
(t, r) = (t, x, y,<br />
(0,<br />
P1 −<br />
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δs ′ <br />
2 2 2<br />
= c γ t − v<br />
c2x ′ 1 = (γ(t − vx/c 2 ), γ(x − vt), 0, 0)<br />
2 − γ 2 (x − vt) 2 = δs 2
x’ =<br />
y’ =<br />
z’<br />
=<br />
γ ( x − v t ) = γ ( x − β c t )<br />
y<br />
z<br />
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ou β = v / c < 1 et γ = ( 1 − β 2 ) −1/2 0’<br />
x’<br />
ÙØÖÖØÓÒÐ×ÖÐØÓÒ××ÓÒØÔØÖ ÌÖÒ×ÓÖÑØÓÒÄÓÖÒØÞ×Ú×ØÔÖÐÐÐÜËÚ×ØÒ×ÙÒ<br />
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> 1<br />
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1<br />
⎜<br />
g = ⎜ −1 ⎟<br />
⎝ −1 ⎠<br />
−1<br />
, gµν = g µν<br />
ÕÙÔÖÑØÒÖÐÒÚÖÒØ ds 2 = gµνdx µ dx ν = dxνdx ν ÇÒÔÓ× <br />
x 0 ≡ ct, x 1 ≡ x, x 2 ≡ y, x 3 ×ØÒÚÖ× ÊÑÖÕÙÓÒ×ÕÙ×ÐÓÒÙØÐ×ÐÑØÖÕÙ <br />
ÙÒÚØ××vx ËÓÙ×ÐÓÖÑÑØÖÐÐÐ×ØÖÒ×ÓÖÑØÓÒ×ÄÓÖÒØÞ×ÖÚÒØÒ×Ð×<br />
≡ zØÜoØÐ×Ò×2 x ′ µ µ<br />
= Λ νx ν Ú <br />
⎛<br />
⎞<br />
γ −γβ 0 0<br />
⎜<br />
Λ = ⎜ −γβ γ 0 0 ⎟<br />
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0 0 0 1<br />
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v
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ÉÐÖÓÙÔ×ØÐÓÑÑÙØØ ÔÖÑØÐÙÐÖÐÐÑÒØÒÚÖ× 0ÐÓÖ×Λ→<br />
→<br />
-<br />
H s<br />
Λ α β = gβρg ασ Λ ρ σ<br />
δτ<br />
δ t<br />
+ +<br />
H<br />
t<br />
CL<br />
CL -<br />
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-<br />
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t<br />
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H +<br />
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δ x
ÙÜÚÒÑÒØ×ÔÓÙÖÐÕÙÐδx = 0Øδt = δτÓτ×ØÐØÑÔ×ÔÖÓÔÖËP0 ×ØÒ×ÐÔ××P1ÓÒ×Ø×ÙÖÐÝÔÖÓÐÀ+ t×ÙÖH − t××ØÐÓÔÔÓ× Ä×δs 2 ÒÖÓØ×ÖÒØ× ÐÙÑÖ ÙÒÓ×ÖÚØÙÖÔÓÙÖÐÕÙÐÐ×ÙÜÚÒÑÒØ×ÓÒØÐÙ×ÑÙÐØÒÑÒØÒÙÜ ÍÒ×ÒÐÚØ××ÔÙØÓÙÔÐÖÙÜÚÒÑÒØ×ÕÙ××ØÙÒØ×ÙÖÐÒ<br />
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TDC<br />
d d d d d d<br />
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stop<br />
TDC<br />
ÄÓÖ×ÐÜÔÖÒÓÒÔÙØ×ÙÔÔÓ×ÖÕÙÐÔÖÑÖÚÒÑÒØÐÙÐÓÖ×<br />
start<br />
d<br />
photocellule<br />
retard<br />
programme’<br />
convertisseur<br />
temps−>digital<br />
ÕÙÇØÇ×ÖÓ×ÒØØÕÙ×ØØÒ×ØÒØÕÙÐ×Ó×ÖÚØÙÖ×ÑÖÖÒØ
Ð×ÖÓÒÓÑØÖ×Ö×ÔØ× x0 = x ′ Ø 0 = 0 Ä×ÓÒÚÒÑÒØÐÙÒÇÐÒ×ØÒØt ′<br />
vt1ÒÇÇÒÔÔÐÕÙÐ×ØÖÒ×ÓÖÑØÓÒ×ÄÓÖÒØÞ<br />
1ØÓÙÓÙÖ×ÐÓÖÒÒÇ<br />
1 = γ(x1 ÓÑÑÔÖÚÙ<br />
Ó×ÖÚÔÖÇ<br />
1×ØÐÐØØÓÒÙØÑÔ×Ç<br />
− vt1) = 0<br />
Ø ÔÔÖ×ÕÙ×ÙØÒØÔÖÓÜ×Ò×ÓÑÔØÖÐ×ÓÙÚÖ×ËÆÛ Ö×ÙÐØØÓÒÙØÙÔÖÓÜ×ÙÑÙÜÒÓÒÚØÓÑÔØ ÇÒÔÖÓÓÒÒÐÓÙÔÓÙÖÑÓÒØÖÖÐÓÒØÖØÓÒ×ÐÓÒÙÙÖ×<br />
= ′×ØÔÐÙ×ÐÓÒÕÙt ÓÒt1<br />
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ÒØ×Ò×ÙÒÒÒÙ×ØÓÑÑØÖÄ×ÔÓÒ×Ö×× ØÙÖÝÖÓÑÒØÕÙÙÑÙÓÒ ×ÒØÖÒØÒÚÓÐÒÓÒÒÒØ×ÑÙÓÒ×π→µνÄ×ÑÙÓÒ××ÔÐÒØ×ÙÖ ÚÓÖÙÖ× Ò×ØØÜÔÖÒ×ÔÓÒ×Ö××ÓÒØ ÝÒØÓÒÙØÐØÖÑÒØÓÒÙ<br />
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ÙÒÔÒØÙØÙÜÓÑÔØÓÑÔØÐÚγτµµ× ÉÐÔÖÓÜ×ÙÑÙÜ×ØÐÒ×ÚÖ ÄÑÔÙÐ×ÓÒ×µ×Ø Ä×ÑÙÓÒ×ÙÖÔÓ×ÓÒØÙÒØÑÔ×Úτµµ×ÒÚÓÐÓÒÓ×ÖÚ Î ÕÙÓÒÒÙÒγÑ <br />
ÙÑÙÓÒ ÇÒÖÔÖÒÖÐ×Ù××ÓÒØØÜÔÖÒÐÓÖ×ÕÙÓÒÔÖÐÖ×ÔÖÓÔÖØ×<br />
ÄÒÓØÓÒÚØ×××ØÒÖÐ×ÔÖÐÒØÖÓÙØÓÒÙÕÙÖÚØÙÖ ÉÙÖÚØÙÖÒÖÑÔÙÐ×ÓÒ<br />
ÔÖØÙÐ×ØÙÖÔÓ×<br />
τ×ØÐØÑÔ×ÔÖÓÔÖÐÔÖØÙÐ×ØÖÐØÑÔ×Ò×Ð×Ý×ØÑÓÐ <br />
ÄÅÖÖÌÑÒØ×ÔØÖÚÐÐÖÍÒÚÓÈÒÒ×ÝÐÚÒÈÖ××<br />
<br />
ÈÖØË ÂÐÝØÐÆÙÐÈÝ× ÂÅÖÐÝØÈ××ÓÒÒÙÊÚÆÙÐ <br />
x ′<br />
1 = 0Ñ×Òx1 =<br />
x ′<br />
t ′<br />
′<br />
γt1<br />
t0<br />
= t ′<br />
0<br />
= 0<br />
1 = γ(t1 − vx1/c 2 ) = γ(t1 − v 2 t1/c 2 ) = t1/γ<br />
u µ = dxµ<br />
<br />
dt 1 dx<br />
≡ c ,<br />
dτ dτ c dτ
Ð×ÑÒØ×ÔÓÐÖ×ØÐ× ÑÒØÔÓÐÖÒÓÖÑ Ð×ÙÑÙÓÒ×ØØÑÖ×ØÙ×ØÒ×ÐÒØÖÖ×ÑÒØ× ÒÒÙ×ØÓÑÙÓÒ×ÚÙ×ÑØÕÙ××Ù×Ú ÓÑÔØÙÖ×ÔÖØÙÐ×ÚÙÒÓÙÔÙÒ ÚÙÒÓÙÔÐÑÖÚÓÖÙÐ<br />
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ÖÔÓ×ÓÒÓØÒØÐÕÙÖÚØÙÖÒÖÑÔÙÐ×ÓÒ ÒÑÙÐØÔÐÒØÔÖÑÐÑ××ÐÔÖØÙÐÒÒ××ÓÒ×Ý×ØÑ<br />
ÇÒdt<br />
<br />
= ÇÒÚÓØÕÙÙ2<br />
p µ Ú ≡ (γmc, γmv) = (E/c, p) ÓÒp 2×ØÙÒÒÚÖÒØÕÙ×ØØØÒÙÖÐ×ØÐÒÖÑ×× ÐÔÖØÙÐÒ××ÓÒ×Ý×ØÑÙÖÔÓ× ÄÒÖÒØÕÙÙÒÔÖØÙÐ×ØÒÔÖ<br />
<br />
dτ<br />
ÉÑÓÒØÖÖÕÙT =<br />
dx dt<br />
= γØdx<br />
=<br />
dτ dt dτ = vγÓÒ 2×ØÙÒÒÚÖÒØ<br />
u<br />
c<br />
p<br />
T = E − mc 2<br />
mv 2 /2ÕÙÒv≪c<br />
µ <br />
≡ c γ, γ v<br />
c<br />
2 = c 2 m 2
Ð× ÖÔÔÓÖØÐÐÐ×ÐÓÒÐ×××Ð×ÙØÖ×ÓÙÖ××ÖÔÔÓÖØÒØ×ÐÐ× ÌÙÜÓÑÔØÒÓÒØÓÒÙØÑÔ×ÄÓÙÖ×ÙÔÖÙÖ×<br />
ÍÒÜÑÔÐÜÔÖ××ÓÒÓÚÖÒØ×ØÐÐÕÙÓÒÓØÒØÒÖÚÒØÐÕÙ ÓÚÖÒÒÐØÖÓÝÒÑÕÙ ØÓÒÓÒØÒÙØdρ ∂µj µ ÓÐÓÙÖÒØÚÖÑÑÓÒÔÙØÖÓÖÑÙÐÖÐ×ÕÙØÓÒ×ÅÜÛÐÐ ÁÐÙØÒÖÐ×ÖÕÙÐÓÚÖÒÐÕÙØÓÒÓÒØÒÙØÜÔÖÑÙÒ× ÓÒÓÚÖÒØÇÒÒØÐØÒ×ÙÖÙÑÔÑ ØÙØÓÒÔÝ×ÕÙÔÖ×ØÓÙØÓ×ÖÚØÙÖÓØÓ×ÖÚÖÙÒÙÑÙÐØÓÒ ÔÖØÓÒÐÒÖÓØ<br />
= 0 ÓÐÓÒÔÓ×j<br />
ÇÒÔÙØÒ×ÓÑÒÖÐ×ÙÜÕÅÜÛÐÐÔÓÙÖÚ(E)Ørot(B)Ò<br />
c jν <br />
<br />
ÜÔÖÓÙÚÖÕÙÐÒØ×ÝÑØÖF µν<br />
dt<br />
0×ÓÙ×ÐÓÖÑ<br />
+ div(j) =<br />
= cρ<br />
0<br />
F µν ⎛<br />
⎞<br />
0 −Ex −Ey −Ez<br />
⎜<br />
= ⎜ Ex 0 −Bz By ⎟<br />
⎝ Ey Bz 0 −Bx ⎠<br />
Ez −By Bx 0<br />
∂µF µν = 4π<br />
= −F νµÑÔÐÕÙ
Ä×ÙÜÕÅÜÛÐÐÓÑÓÒ×ÓÙÐÒØÙØÓÑØÕÙÑÒØ ÙÒÓ×<br />
ËÐÓÒÓÑÒ×ÔÓØÒØÐ× ÕÙÒÓÙ×ÚÓÒ×ÒØÖÓÙØÐ×ÔÓØÒØÐ×ÚØÙÖ(A)Ø×ÐÖ(V )<br />
A µ ÕÙÔÖÑØÖÖÖÐÕÓÒØÖÓÙÚ <br />
ÇÖÓÒÔÙØØÙÖÙÒÖÒØÓÒÙÔÓØÒØÐÕÙÓÒÔÔÐÐÙÒØÖÒ×<br />
≡ (V, A)<br />
ÓÖÑØÓÒÙÐ×ØÔÓ××ÐÖÐØÖÒ×ÓÖÑØÓÒ<br />
A µ → A µ + ∂ µ ÒÒÔ×Ð×ÖÔØÓÒÔÝ×ÕÙ ÇÒÑÔÓ×ÓÒÐÓÒØÖÒØÙÄÓÖÒØÞ <br />
f(t, x)<br />
∂µA µ ÕÙÓÒÒ <br />
= 0<br />
∂µ∂ ν = 4π<br />
c jν <br />
ÇÒÓØÒØÒ××ÜÔÖ××ÓÒ×ÓÑÔØ×Ò×Ð×ÕÙÐÐ×ÐÓÚÖÒ×Ø ÜÔÐØÈÖÜÑÔÐÐÒÚÖÒÙÔÖÓÙØF µν ÉÕÙÚÙØÔÖÓÙØ<br />
Fµν×ØÙØÓÑØÕÙ<br />
ÔÓÒÒØÖÐØÚ×ØÊÉÅÚÖØ×ØÙÖÒÓÙÙÖÇÒÑÖØÖÖÐ× ÄØÖÒ×ØÓÒÐÑÒÕÙÕÙÒØÕÙÒÓÒÖÐØÚ×ØÉÅ×ÓÒÓÖÖ× Ä×ÕÙØÓÒ×ÃÐÒÓÖÓÒØÖ<br />
ÔÖÒÔ×× ÜÔÖÑÔÖÙÒÓÒØÓÒØØψÕÙ×ØÓÒØÓÒÙÒÖØÒÒÓÑÖ Ò×ÐÑÒÕÙÕÙÒØÕÙÒÓÒÖÐØÚ×ØÙÒØØ×ØÑØÑØÕÙÑÒØ Ä×ÕÓÑÓÒ×ÔÙÚÒØ×ÓØÒÖ∂µF µν ÎÓÖÖØ ÂÂ×ÓÒÐ××ÐÐØÖÓÝÒÑ×ÂÓÒÏÐÝËÓÒ×ÁÒ <br />
ËØ <br />
ØE= −grad(V ) − 1<br />
✷×ØÐÐÑÖØÒ ∂µ∂<br />
∂A<br />
c ∂t<br />
F µν = ∂ µ A ν − ∂ ν A µ <br />
∂µ∂ µ A ν − ∂ ν (∂µA µ ) = 4π<br />
c jν <br />
µ A ν = 4π<br />
c jν ÓÙ<br />
✷A<br />
µ = ∂ µ ∂µ<br />
= 0ÓF<br />
: B = rot(A)<br />
µν = 1<br />
2εµναβ FαβÎÓÖ
×ÓÒØÐ×ÓÓÖÓÒÒ×Ð××ÕÙ××Ð×ÔÒÓÙØÓÙØÙØÖÖÐÖØÒØÖÒØ ÔÓÙÖÐÔÖØÙÐ×ØÖÓÙÚÖÒ×ØØØ<br />
t)ÓÕ Ö×ÐÖØÈÜÓÒÔÙØÖÖÔÓÙÖÐØØÙÒÔÖØÙÐψ(q, s, ÐØÑÔ×| ψ ÌÓÙØÓ×ÖÚÐΩ×ØÖÔÖ×ÒØÔÖÙÒÓÔÖØÙÖÖÑØÕÙ<br />
ÍÒØØÔÝ×ÕÙ×ØÙÒÚØÙÖÔÖÓÔÖÐÓ×ÖÚÐΩ× ψ<br />
p<br />
ÍÒØØÖØÖÖ×ÜÔÖÑÓÑÑÙÒ×ÙÔÖÔÓ×ØÓÒÐÒÖÙÒÒ×ÑÐ ÓÑÔÐØÓÒØÓÒ××ÚØÙÖ×ÔÖÓÔÖ× ÚÐÓÖØÓÓÒÐØ<br />
Óωn×ØÐÚÐÙÖÔÖÓÔÖÖÐÐÕÙÓÖÖ×ÔÓÒÙÚØÙÖÔÖÓÔÖφn<br />
Ä×ÔÖÒÑØÑØÕÙÐÓ×ÖÚÐΩ×ØÓÒÒÔÖ<br />
<br />
| 2×ØÙÒÕÙÒØØÒÔÓ×ØÚÒØÖÔÖØÓÑÑÐÔÖÓÐØ<br />
ÒÔÖØÙÐÖÐÑÔÙÐ×ÓÒpÐÔÖØÙÐ×ØÓÒÒÔÖ <br />
<br />
Ωψ =<br />
Ωψ ψ<br />
pi → ∂<br />
i ∂qi<br />
Ωφn = ωnφn<br />
= i∇<br />
ψ = <br />
<br />
anϕn<br />
ϕn<br />
ϕm = δnm<br />
n<br />
| an | 2ÖÔÖ×ÒØÐÔÖÓÐØØÖÓÙÚÖÐ×Ý×ØÑÒ×ÐØØÒ<br />
〈Ω〉ψ = 〈ψ|Ω|ψ〉 = <br />
| an |<br />
n<br />
2 ÓÖÖ×ÔÓÒÐÒØÖØÓÒ×ÙÖÐ×ÓÓÖ <br />
ÒÖ ÄÚÓÐÙØÓÒÙÒ×Ý×ØÑÔÝ×ÕÙ×ØÖÔÖ×ÒØÔÖÐÕÙØÓÒËÖ ÓÒÒ×ØÐ×ÓÑÑØÓÒ×ÙÖÐ×ØØ×ÒØÖÒ×<br />
ωn Ò×Ð×ÖÐØÓÒ×××Ù×Ð×Ò <br />
i ∂ψ<br />
∂t = Hψ Ø××ÚÐÙÖ×ØÚØÙÖ×ÔÖÓÔÖ×ÖÔÖ×ÒØÒØÐ×ØØ××ØØÓÒÒÖ×ÔÓ××Ð×Ù À×ØÐÀÑÐØÓÒÒÙ×Ý×ØÑËÐ×Ý×ØÑ×ØÖÑÀ×ØÒÔÒÒØ <br />
ÙÒÔÓØÒØÐÖÐÎÐÕÙØÓÒÚÒØ<br />
<br />
− 2∇2 <br />
+ V ψ = i<br />
2m ∂<br />
∂t ψ <br />
<br />
×Ý×ØÑÙÖÔÓ×ËÐÓÒÓÒ×ÖÙÒÔÖØÙÐÒÖÒØÕÙÔ2ÑÒ×
ÓÒÒÐÓÙ ÓÒÔÓ×<br />
E → i ∂<br />
∂t<br />
ÇÒÚÑÒØÒÒØ×Ö×ØÖÒÖÙ××ÔÖØÙÐ×ÐÖ×Î ËÐÓÒÑÙÐØÔÐÐÕ ÚÎ ÔÖψ ∗ØÓÒ×ÓÙ×ØÖØ×ÓÒÓÑÔÐÜ ÓÒÙÙÑÙÐØÔÐÔÖψÓÒÓØÒØÐÕÙØÓÒÓÒØÒÙØ<br />
×ÐÓÒÑÙÐØÔÐρØjÔÖÐÖÐÔÖØÙÐÓÒÜÔÖÑÐÓÒØÒÙØÙ Ü×ØÒÐÔÖØÙÐØ×ÖØÖ×ØÕÙ×ÕÙÐÐØÖÒ×ÔÓÖØÈÖÜÑÔÐ ØØÕÙØÓÒÜÔÖÑÐÓÒ×ÖÚØÓÒÐÔÖÓÐØÓÒÐÔÖÓÔÖØ ÓÙÖÒØÐØÖÕÙ ÄÔÖÑÖØÒØØÚØÖÒ×ÔÓ×ÖØÓÙØÐÒ×ÙÒÓÒØÜØÖÐØÚ×ØÔÖØ ÐÜÔÖ××ÓÒÐÒÖE 2 ÓØÒØ Ø ÓÒ<br />
ÕÙÔÙØ×ÖÖ×ÓÙ×ÐÓÖÑÙÒÕÙØÓÒÓÒ<br />
−<br />
Ç×ÖÚÓÒ×ÕÙ ÐÓÙÐÙØÕÙÐÓÒÙÒÑÙØ×ÒÒ×Ð×ÓÐÙØÓÒ exp(±iEt/)<br />
ÓÑÔØÐÐ×ÖÙØÐÔÓÙÖÖÖÐØØ×ÒØÔÖØÙÐ× ÇÒÚÖÖÕÙØØ×ØÙØÓÒÒ×ØÔØÓÐÓÕÙÕÙÒÔÔÖÒØÕÙÒÒ<br />
ÑÔÐÕÙ××ÓÐÙØÓÒ×ÒÖÒØÚ∼<br />
ÈÖØÒØ ÐÔÖÓÙÖ××Ù×ÑÒÐÕÙØÓÒÓÒØÒÙØ<br />
ÄÔÖÓÐÑ×ØÕÙÙ×Ù×ÓÒÓÖÖÐÖÚØÑÔÓÖÐÐÒ×ÐÕ ÐÜÔÖ××ÓÒ<br />
<br />
(ψ<br />
dρ<br />
+ ∇ · j =<br />
dt 0Úρ = ψ ∗ ψØj =<br />
<br />
2mi [ψ∗ ∇ψ − (∇ψ ∗ )ψ] <br />
= (Ôc) 2 2ÒÙØÐ×ÒØ + (Ñ2 ) 2 ∂ 2 t ψ = (−2c 2 ∇ 2 + m 2 c 4 <br />
)ψ<br />
ÕÙØÓÒÃÐÒÓÖÓÒ<br />
<br />
mc<br />
<br />
2<br />
✷ + ψ = 0<br />
<br />
E = ± (pc) 2 + (mc2 ) 2<br />
∂<br />
∂t (ψ∗∂tψ − ψ∂tψ ∗ ) + ∇(ψ ∗ ∇ψ − ψ∇ψ ∗ ÓÙ ) = 0 ,<br />
∂ µ (ψ ∗ ∂µψ − ψ∂µψ ∗ ) = ∂ µ jµ = 0<br />
∗ ∂tψ − ψ∂tψ ∗ )
ÒØ×ÐÓÒÓÒ×ÖÙÒ×ÓÐÙØÓÒ Ò×ØÔ×ÒÔÓ×ØÚÕÙÑÔÐ××ÓÖÙÒÒ×ØÔÖÓÐØ<br />
ÖÕÙÑÒØÔÖÓÐÑÑÒÐÒÓÒÔÖÓÚ×ÓÖÐÕÙØÓÒÃÐÒ ÓÖÓÒ ÓÒÓØÒØÙÒÒ×ØÆ2ÕÙ×ØÒØÚÔÓÙÖÐ×ÓÐÙØÓÒÚ
Ò× Ø Ð×ØÐ×ÖÔÖ×ÒØÒØ×ÑØÖ×ÜØÐ×σ i×ÓÒØ Ð×ÑØÖ×ÈÙÐÇÒÒØÖÓÙØÙ××<br />
γ 5 = iγ 0 γ 1 γ 2 γ 3 ÄÓÒØÓÒÓÒÓÒÐÓÖÑÙÒÓÙÐ×ÔÒÙÖ<br />
=<br />
ÆÓØÓÒ×ÕÙÐÒ×ØÔ×ÙÒÕÙÖÚØÙÖ ÄÓÙÖÒØÔÓÙÖÐ×ÔÖØÙÐ×Ö<br />
ÒÔÖÒÒØІ ψ×Ø×ØÐÕÙØÓÒÖÓÒØÕÙÐÓÒÓØÒØ<br />
= ÇÒÒØÐÓÙÖÒØÔÖƆ<br />
ψ×ØÔÔÐÐÓÒØψ ØÒÑÙÐØÔÐÒØÔÖγ 0ÇÒØÖÓÙÚÕÙØØÜÔÖ××ÓÒ ×Ø×ØÐÕÙØÓÒÓÒØÒÙØ∂µj µ ÕÙÔÓÙÖÓÑÔÓ×ÒØØÑÔÓÖÐÐÐÕÙÒØØÒÔÓ×ØÚj 0 ÆÓØÓÒ×ÕÙψ † ØÖÖÕÙψψÔÖÓÒØÖ×ØÒÚÖÒØ Ä××ÓÐÙØÓÒ×ÐÕÙØÓÒÖ<br />
ψÒ×ØÔ×ÙÒ×ÐÖÙÒÒÚÖÒØÄÓÖÒØÞÓÒÔÙØÑÓÒ<br />
ÔÖ×ÓÐÙØÓÒ× 0Ò××ÓÒÐ<br />
Ú<br />
ÓÒ×ÖÓÒ×ØÓÙØÓÖÐ×ØÙØÓÒ×ØØÕÙp =<br />
<br />
ψ±(t)<br />
<br />
ÐØÖÓÒØÙÒÔÓ×ØÖÓÒ×ÔÒ ÇÒÖÓÒÒØÙØÖÔÖØÒ× ÔÓÒÒÓÖ×ÒÖ×ÒØÚ×ÇÒ××ÓÖ××ÓÐÙØÓÒ×ÙÜÒØÔÖØÙÐ× Ñ2×ØÐÒÖÐÔÖØÙÐÙÖÔÓ×Ð×ÓÐÙØÓÒÐÜÔÓ×ÒØÔÓ×ØÓÖÖ× ÙÜ×ÔÒÙÖ×ÙØÐ×Ð×ÔÓÙÖÖÖÙÒ<br />
ψ+<br />
<br />
⎛<br />
⎜<br />
ψ = ⎜<br />
⎝<br />
ψ1<br />
<br />
0 1<br />
1 0<br />
ψ2<br />
ψ3 ⎠<br />
t<br />
ψ4<br />
∗ (a )<br />
j µ (x) = cψ † (x)γ 0 γ µ ψ(x) = cψ(x)γ µ ψ(x)Óψ = ψ † (x)γ 0<br />
cψ † ψÓÑÑØØÒÙ<br />
=<br />
⎞<br />
⎟<br />
= 0 j µ×ØÙÒÕÙÖÚØÙÖÄÓÖÒØÞ<br />
= ρc = cψγ0ψ =<br />
= e +i(mc2 t/) ψ±(0)<br />
ψ1<br />
ψ2<br />
<br />
et ψ− =<br />
ψ3<br />
ψ4
ÒÓÒ××ÓÐÙØÓÒ×ÒÓÖÑÓÒÔÐÒ 0ÇÒ×ØÒØÖ×××ØØ×ÒÖ<br />
ÕÙÓÒÖØÓÒÓÒÒ×<br />
ÎÒÓÒ×ÒÐ×ØÙØÓÒÝÒÑÕÙp =<br />
ψ(x) = ae ixp/ ËÐÓÒÒ×Ö Ø Ò×ÐÕÙØÓÒÖÓÐ×ÑØÖ×γ×ÓÒØÒ×Ò ÓÒÓØÒØÐ××ÓÐÙØÓÒ×ÒÓØØÓÒ×ÐÖ <br />
u(p)<br />
u (1) = N<br />
u (3) = N<br />
⎛<br />
⎜<br />
⎝<br />
⎛<br />
⎜<br />
⎝<br />
1<br />
0<br />
cpz<br />
E+mc 2<br />
c(px+ipy)<br />
E+mc 2<br />
cpz<br />
E−mc 2<br />
c(px+ipy)<br />
E−mc 2<br />
1<br />
0<br />
ψ(r, t) = ae −i(Et−p·r)/ u(E, p) <br />
⎞<br />
⎟<br />
⎠ , u(2) = N<br />
⎞<br />
⎟<br />
⎠ , u(4) = N<br />
⎛<br />
⎜<br />
⎝<br />
⎛<br />
⎜<br />
⎝<br />
0<br />
1<br />
c(px−ipy)<br />
E+mc 2<br />
−cpz<br />
E+mc 2<br />
×E = m2c4 + p2c2 <br />
×E = − m2c4 + p2c2 ÇÒÓ×ÐÒÓÖÑÐ×ØÓÒÔÖØÙÐ×ÔÖÙÒØÚÓÐÙÑÖØ Ú N<br />
(4)ÙÔÓ×ØÖÓÒ <br />
ÕÙ×ÓØÒØ ÇÒ××ÓÓÒÚÒØÓÒÐÐÑÒØÐ×ÚØÙÖ×ÔÖÓÔÖ×u ÇÒÚÙØÕÙÔÓÙÖÐÔÓ×ØÖÓÒÓÑÑÔÓÙÖÐÐØÖÓÒE ><br />
c(px−ipy)<br />
E−mc 2<br />
−cpz<br />
E−mc 2<br />
0<br />
1<br />
⎞<br />
⎟<br />
⎠<br />
⎞<br />
⎟<br />
⎠<br />
= (| E | +mc2 )/c<br />
u † <br />
u = 2 | E | /c<br />
ÊÑÖÕÙÓÒ×ÕÙÙØÖ×ÒÓÖÑÐ×ØÓÒ××ÓÒØÔÓ××Ð×u † (2)×ÓÒØ×ÚØÙÖ×ÔÖÓÔÖ×ÐÓÔÖØÙÖÒÖÚÐÚÐÙÖÔÖÓÔÖ<br />
u| E |Ñ2<br />
u (1)Øu<br />
| E |<br />
u (3)Øu (4)×ÓÒØ×ÚØÙÖ×ÔÖÓÔÖ×ÚÐÚÐÙÖÔÖÓÔÖ| E |<br />
(3)Øu
ÔÖØÐ××ÓÐÙØÓÒ×ÔÓÙÖ×ÔÖØÙÐ×ÒØÚÓÑÑ××ÓÐÙØÓÒ×ÔÓÙÖ Ð×ÒØÔÖØÙÐ×ÔÓ×ØÚ ×ÐÓÒÒÐ×ÒEØ×ÑÙÐØÒÑÒØÐÙÔ ÓÒÓÒÖÒØÖ<br />
ÇÒÓØÒØ<br />
<br />
Ä×u×Ø×ÓÒØÐÕÙØÓÒ ÓÖÒÚÒØÓÒÐ××Ö (4)Ð×ÚØÙÖ×ÔÖÓÔÖ×<br />
ØÐ×vÐÕÙØÓÒ<br />
ØÐ×ÒÓØØÓÒ×u (2)Ð×+<br />
ÊÑÖÕÙÓÒ×ÕÙÔÓÙÖÖÚÒÖÐÓÖÑ ÐÙØÖÐ×Ù×ØØÙØÓÒ<br />
(γ<br />
γ 0 ÉÙÐÕÙ×ÕÙ×ØÓÒ××ÔÓ×ÒØØ<br />
ÓÒÚÓÖÔÒ×ÞÑÖÓÒÒÐÖÔÓÒ××ÙÚÒØØØÒØÖ ÇÒÒÚÙØÔ×ÔÖØÙÐ×ØØ×ÓÖØÍÒÑ××ÒØÚ×ØÐ ÉÙÒØØÚÑÒØÐ××ÓÐÙØÓÒ×ÒÖÒØÚ<br />
= β<br />
ÖÓØÓÒ×ÓØ×ÒÖÒØÚÜ×ØÒØÒ×ÐÍÒÚÖ×Ñ×Ð×ØØ×<br />
•<br />
ÔÖÔÖØÙÐØÖÓÙÔÙØ×ÓÖÑÖÔÖÔ××ÙÒ×Ô×ÙÓÔÖØÙÐ× ÙÒÓÖÑÑÒØÒØÖÐ×ØØ××ÔÓÒÐ×ÚÓÖÐÔÖÒÔÜÐÙ×ÓÒÈÙÐ ÙÒÓÖÑÑÒØÓÙÔ×ÒØÓÒÓÒ×Ö×ÖÑÓÒ×ÕÙ××ØÖÙÒØ Ñ××ÑØÖqÕÙÓÖÖ×ÔÓÒÒØ(−E,<br />
ØØÒØÖÔÖØØÓÒÒ×ÔÔÐÕÙÓÒÔ×ÙÜÓ×ÓÒ× 2Ñ2Ù×Ý×ØÑÚÙÒ<br />
−p),<br />
<br />
ËÐÓÒÔÔÓÖØÙÒÖØÒÕÙÒØØÒÖδE ><br />
u (1)Øu (2)ÖÔÖ×ÒØÒØÐ×−ØÐ×ÚØÙÖ×ÔÖÓÔÖ×v<br />
v (1) (E, p) = u (4) (−E, −p) = N<br />
⎛<br />
⎜<br />
⎝<br />
⎛<br />
v (2) (E, p) = u (3) ⎜<br />
(−E, −p) = N ⎜<br />
⎝<br />
c(px−ipy)<br />
E+mc 2<br />
−cpz<br />
E+mc 2<br />
0<br />
1<br />
cpz<br />
E+mc2 c(px+ipy)<br />
E+mc2 1<br />
0<br />
⎞<br />
⎟<br />
⎠<br />
⎞<br />
⎟<br />
⎠<br />
(3)Øu<br />
(1)Øv<br />
(γ µ pµ − mc)u = 0<br />
γ<br />
µ pµ + mc)v = 0<br />
i = βαi<br />
E > 0×ÓÒØÒÓÖÑÐÑÒØØÓÙ×
2<br />
+m<br />
E<br />
particule<br />
<br />
−m<br />
2<br />
ÓÖÑØÓÒÙÒÔÖÔÖØÙÐØÖÓÙ×ÐÓÒÖ<br />
trou=antiparticule<br />
ÕÙÚÐÒØÙÒÔÖØÙÐÕÙÖÙÐÓÐ×Õ ÐØØÔÖØÙÐÑ××ÑØÖqÄØÖÓÙ×ÓÑÔÓÖØÓÑÑÙÒÒ ÔÖÓÐÑ×ØÓÒØÓÙÖÒÔÖÐØÓÖÕÙÒØÕÙ×ÑÔ×<br />
p)Ñ××mØÖ−qÍÒØÖÓÙÕÙÚÒ×Ø<br />
(2)ÖÔÖ×ÒØÒØÐ×ÙÒÐØÖÓÒÒ××ØØ× ÁÐÙØÖÑÖÕÙÖÕÙ ØÔÖØÙÐÖØÖ×ÔÖ(E,<br />
• Ä×ÚØÙÖ×ÔÖÓÔÖ×u (1)Øu<br />
×ÔÒ±1/2 ÄÖÔÓÒ××ØÒÓÒËÐÓÒÒØÐÓÔÖØÙÖ×ÔÒ<br />
S = <br />
ÐÕÙØÓÒÖÑÔÐÕÙØØÓÒ×ÖÚØÓÒ<br />
<br />
σ 0<br />
ÜÖÑÓÒØÖÖÕÙ<br />
S×ØÙÒÕÙÒØØÓÒ×ÖÚØ<br />
2 0 σ ÕÙ×ÙÐÐÑÓÑÒØÒÙÐÖØÓØÐJ = L +<br />
S1 = i<br />
2 γ2γ 3<br />
S2 = i<br />
2 γ3γ 1 ØÔÖØÖÐÕÙ S = − 1<br />
ÐÓÒÐÖØÓÒÙÑÓÙÚÑÒØÞØÔÖL=0)ÕÙÓÒÓØÒØÐ××ÓØÓÒ ×Ø×ÙÐÑÒØÒ×Ð×ÔÖØÙÐÖÔxÔy <br />
ÕÙÒÓÒÔÖÓØØÐ×ÔÒÐ<br />
ÓÒÔÙØÚÖÖÕÙÐÓÒÒÔ××ÚØÙÖ×ÔÖÓÔÖ×ËzÄÖ×ÓÒÒ×Ø<br />
S3 = i<br />
2 γ1γ 2 <br />
2 γ0γ 5 <br />
γ
Ö×ÔÓÒÒØ×Ø |−〉ØØÔÖÓØÓÒ×ÔÔÐÐÐÐØØÐÓÔÖØÙÖÓÖ Ù(1) = |+〉ØÙ(2) =<br />
λ ≡ S · ˆp = Ä×ØØ×ÔÓ××Ð××ÓÒØλ=±/2ÐØ×ÔÓ×ØÚØÒØÚÕÙÐÓÒÖÔÖ ×ÒØÔÖÙÖ Ó <br />
<br />
σ · ˆp 0<br />
ˆp = p/ | p |<br />
2 0 σ · ˆp<br />
+1/2<br />
ÄÔØØÓÒÒÐÖØÓÒÐÔÖØÙÐÐÖÓ××ÖÔÖ×ÒØÐÔÖÓ ØØ×ÐØÔÓ×ØÚØÒØÚ<br />
−1/2<br />
ÕÙÒØÕÙ ØÓÒÙ×ÔÒ×ÙÖØØÖØÓÒ ÄÓÔÖØÙÖÐØÓÑÑÙØÚÐÀÑÐØÓÒÒÀλ×ØÙÒÓÒÒÓÑÖ<br />
ÓÙÓÒØÓÙØØÔÓÙÖ ÈÓÙÖÐÑÓÒØÖÖÐÙØÖÖÙÒÔÖ×ÖÔØÓÒÕÙÔÖÑØØÔ××Ö ÐØØψ(x)ÖØÔÖÐÓ×ÖÚØÙÖÇÐØØψ ′ (x ′ )ÖØÔÖÇÓψ ′ (x ′ ×Ø×ØÐÕÙØÓÒÖ<br />
)<br />
<br />
µ ∂<br />
iγ<br />
∂x ′ <br />
− mc ψ<br />
µ ′ (x ′ ) = 0<br />
(γ µ p ′ µ − mc)ψ ′ (x ′ ÄØÖÒ×ÓÖÑØÓÒÓØØÖÐÒÖ <br />
) = 0<br />
ψ ′ (x ′ ) = ˜ <br />
•ÄÕÙØÓÒÖÑØÐÐÙÒÐÑØÒÓÒÖÐØÚ×ØÖ×ÓÒÒÐ ÒØÐ×ÓÐÙØÓÒÜ×ØÚÓÖÔÜÖ ÔÖØÖ Ø ÓÒÓØÒØ<br />
S(ÇÇ′ )ψ(x),Ó˜<br />
<br />
ÉÐÐØ×ØÐÐÙÒÒÚÖÒØÄÓÖÒØÞ<br />
• ØÓÒÚÖÑÒØÓØÒÙÙÒÓÖÑÙÐØÓÒÓÚÖÒØÁÐÚÖØØÖÐÖÕÙ<br />
S×ØÙÒÑØÖÜ
Hψ = (cp · α + mc 2 β)ψ = Eψ<br />
<br />
0 σ<br />
c · p + mc<br />
σ 0<br />
2 ÓÐÓÙÔÐ <br />
<br />
1 0<br />
ψ = Eψ<br />
0 −1<br />
<br />
cσ · pψ− = E − mc2 )ψ+<br />
cσ · pψ+ = E + mc2 Ò×ÐÐÑØÒÓÒÖÐØÚ×Ø×ØÓÑÒÔÖÑ2 )ψ−<br />
cσ · p<br />
ψ− =<br />
E + mc2ψ+ σ · p<br />
−→<br />
2mc ψ+ ÇÒÔÔÐÐψ−ÐÔØØÓÑÔÓ×ÒØÖØÔÖÐØÙÖ ÇÒÑÓÒØÖÕÙ×ÐÓÒÓÒ×ÖÐÔÖØÙÐÒÒØÖØÓÒÚÙÒÑÔÑ Ñ <br />
ÜØÖÒØÕÙÓÒÒØÖÓÙØÐÓÙÔÐÑÒÑÐ<br />
p µ → p µ − e<br />
c Aµ ÓÒØÓÑ×ÙÖÐÕÙØÓÒÈÙÐ <br />
A ≡ (V, A),<br />
i ∂<br />
2 (p − (e/c)A)<br />
ϕ =<br />
−<br />
∂t 2m<br />
e <br />
<br />
σ · B + eV ϕ<br />
2mc ÚB = rot(A)ØϕÙÒ×ÔÒÙÖ(ϕ = eimc2 ØÖÑÕÙÖØÐÒØÖØÓÒÒØÖÐÐØÖÓÒØÐÑÔÑÒØÕÙ ÇÒÚÓØÕÙÒ××ÐÑØÒÓÒÖÐØÚ×ØÐÕÙØÓÒÖÓÑÔÖÒÙÒ<br />
t/ψ+) − e e<br />
σ · B ≡ −g S ·<br />
2mc 2mc BÚS = 1<br />
2 σØg<br />
•ÉÙÒ×ØÐ×ÔÖØÙÐ××ÔÒÒØÖ ×ØÐØÙÖÄÒÐÔÖØÙÐ<br />
ÕÙÔÓÙÖÐÕÖÓÒÓÒ×ÖÐ×ÒÖ×ÒØÚ×ÓÑÑØÒØ××Ó ÇÒÖÚÒØÐÕÙØÓÒÃÐÒÓÖÓÒØÓÒÝÔÔÐÕÙÐÑÑÓÒÚÒØÓÒ Ø <br />
=<br />
Ô×ÙÓ×ÐÖÓÑÑÐÓÒÚÖÖÔÐÙ×ØÖÐÐ×ØÒÚÖÒØÚ×Ú×× ØÖÒ×ÓÖÑØÓÒ×ÄÓÖÒØÞÇÒÔÙØÚÓÖÐÓÒÒØÙØÚÒÖÑÖÕÙÒØ ×ÙÜÒØÔÖØÙÐ×ÄÕÃ×ØÔØÖÖÙÒÔÖØÙÐ×ÐÖÓÙ<br />
ÒÚÖÒØÐÙØÕÙÐÓÒØÓÒÓÒ×ÓØÙÒ×ÐÖÐÐÒÓØÔ×ÔÒÖ ÔÖÓØØÖÐÓÖÔÓÙÖÐ×ÖÔØÓÒ×ØØ×ÔÖØÙÐ××ÔÒ ÙÒÖØÓÒÔÖÚÐÐ×ÔÐ×ÔÒÓØØÖÒÙÐÍÒÓÖÑÐ×ÑÔÔÖÓ<br />
2 <br />
ÕÙÐÓÔÖØÙÖ✷Ñ22℄×ØÙÒÒÚÖÒØÓÒÔÓÙÖÕÙÐÔÖÓÙØÔÖψÖ×Ø<br />
Ø
ÖÐÐ× ÇÒ×ÑÔÐ×ÓÙÚÒØÐÖØÙÖ×ÓÖÑÙÐ×ÔÖÐÓÔØÓÒ×ÙÒØ×ÒØÙ Ä×ÙÒØ×ÒØÙÖÐÐ×<br />
ÄÕÖÚÒØ<br />
c<br />
ÕÙ×ÓÙÚÒØÐÓÒÖÔÖ<br />
ÉÚÖÖÕÙÅÎÑ−1 ÈÖÓÔÖØ××ÑØÖ×γ<br />
<br />
ØÖÒÙÐÐØ×ÔÒ <br />
ÈÓÙÖ×ÒÓÖÑØÓÒ×ÔÐÙ×ÓÑÔÐØ×ÚÓÖÔÖÜÊ ÇÒÓØØÖØÖÔÖØÐÐÑØÑ→Ä×ÙÐÔÖØÙÐÓÒÒÙÑ××ÔÙØ ×ØÐÒÙØÖÒÓ ÔÔÒÜ<br />
ÄÕÙØÓÒÖÔÓÙÖm =<br />
<br />
= h/2π = = 1<br />
(γ µ pµ − m)ψ = 0<br />
(/p − m)ψ = 0 avec : /a = γ µ aµ<br />
{γ µ , γν } 2g µν<br />
γ5 iγ 0γ1γ 2γ3 {γ µ , γ5 }<br />
γ µ γµ<br />
γµγνγ µ −2γ ν<br />
γµγνγ λγ µ 4g νλ<br />
γµγ ν γ λ γ σ γ µ−2γ σ γ λ γ ν<br />
0
Ä×Õ Ø 0ÓÒÒÒØ ÔÓÙÖm =<br />
γ µ Ø pµu = 0 µ <br />
pµv = 0<br />
ÄÕÔÓÙÖuÕÙÓÖÖ×ÔÓÒÐÔÖØÙÐÔÙØ×ÖÖ γ<br />
γ i piu = −γ 0 p0u = −γ 0 ÓÙÙ×× Ö <br />
Eu p0 = E<br />
ÕÙÓÒÒ<br />
γ<br />
S · pu = 1<br />
2 γ5 ÓÙ S · p 1<br />
Eu u = λu =<br />
| p | 2 γ5 <br />
u ÇÒÙØÐ×ÐØÕÙÔÓÙÖÙÒÔÖØÙÐÑ××ÒÙÐÐ| p | ÅÙÐØÔÐÓÒ×ÔÖγ 5ØÓÙØÓÒ×Ø×ÓÙ×ØÖÝÓÒ×ÐÖ×ÙÐØØÓØÒÙÐÕÙ ØÓÒÔÖØ λ(1 + γ 5 )u = 1<br />
2 (1 + γ5 )u<br />
λ(1 − γ 5 )u = − 1<br />
2 (1 − γ5 Óλ×ØÓÒÒÔÖ <br />
)u ÓÒ(1<br />
ÐØÒØÚÜ×ØÐØÔÓ×ØÚÔÓÙÖÐ×ÒØÒÙØÖÒÓ× ÈÖÐ×ÙØÓÒÑÓÒØÖÖÜÔÖÑÒØÐÑÒØÕÙÔÓÙÖÐ×ÒÙØÖÒÓ××ÙÐÐØØ<br />
negativeÔÓÙÖÐÔÖØÙÐÄ×ØÙØÓÒÔÓÙÖÐÒØÔÖØÙÐ<br />
|ÓÒÒ×Ö×ÙÐØØ×ÒÚÖ××<br />
± ×ÓÒØ×ØØ×ÐØpositive ÐÓÒØÓÒ×ØÐÓÖ×vØE= − | p<br />
ÇÒÑÙÐØÔÐÕÙ ØÔÖ− 1<br />
2 γ0 γ 5ØÓÒÙØÐ×ÐÕ<br />
· pu = γ 0 Eu <br />
γ 5 )u
Ä×ÔÖÓÔÖØ××ÔÖØÙÐ×<br />
ØÙÐ×Ó×ÖÚ×Ò×ÐÒØÙÖÐÙÖ×Ñ××ÖØÑÔ×Ú×ÔÒ Ò×ÔØÖÓÒÔÖ×ÒØÙÒÖØÒÒÓÑÖ×ÖØÖ×ØÕÙ××ÔÖ ÁÒØÖÓÙØÓÒ<br />
ØÒØÐØÖÑÒØÓÒ×ÖÒÙÖ× ÒØÔÖØÙÐÖ×ØÑ×Ò×ÐÜÔÓ××ÑØÓ×ÜÔÖÑÒØÐ×ÔÖÑØ ÍÒ<br />
ÄÑ×× ÄÑ××ÙÒÔÖØÙÐ×ØÐÚÐÙÖÕÙÐÓÒÓØÒØÔÖ(E 2 ÙÒÔÖØÙÐÐÖØ×ØÐ ØÕÙÐÓÒÐÑÒØÓÙØÒØÖØÓÒÁÐ×ØÓÒÙÒÒÓÑÖÒÒÔÓÙÖ ÐÑ×××ØÐÐÑÒØÕÙÖ×ØÒ×ÐÀÑÐØÓÒÒÓÙÐÄÖÒÒÕÙÒÔ<br />
×ÓÒØÒØÕÙ× Ò×Ð×ÙÒ×ÝÑØÖÔÖØÒØÖÔÖØÙÐØÒØÔÖØÙÐÐÙÖ×Ñ×××<br />
×ÓÒØÙØÐ×× ÐÓÒÒØÖÓÙÚÔ×ÐØØÐÖÒ××ÔØÓÐÓÕÙÔÐÙ×ÙÖ×ÒØÓÒ× ÁÐÒ×ØÔ×ÚÒØÒÖÐÖÑÒØÐÑ××ÙÒÕÙÖÔÖØÙÐÕÙ<br />
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p/vØØÑØÓØÙØÐ× ØÖÑÒØÓÒÐÑ××ÐÔÖØÙÐm =<br />
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×ÐÑ××ÐÐØÖÓÒ<br />
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±0.2<br />
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ÏÀÖ×ÏÖÒÙÑÅËÑØÈÝ×ÊÚ
Ò××ØÙÒÖÓÒ×ØÖÙØÓÒÐÔÐÙ×ÓÑÔÐØÔÓ××Ð×ÔÖÑØÖ×ÒÑØ<br />
ÕÙ×ÕÙÖØÖ×ÒØÙÒ×ÒØÖØÓÒÓÙÙÒÖØÓÒÒØÖÔÖØÙÐ×ËÓØ<br />
ËÔØÖÐÑ××ØÚÔÖ×ÔÓÒ× ÔÖÜÑÔÐÐ×ÒØÖØÓÒπ 0 γ1γ2ÓÒØÖÙ×ÓÒ×ÐÕÙÒØØ<br />
→<br />
m 2 γ1γ2 = (pγ1 + pγ2) 2 Ò×Ð×ÔÖØÙÐÖÔÓØÓÒ×Ñ××ÒÙÐÐÓÒÓØÒØ Ó<br />
m 2 γ1γ2 = 2E1E2(1 E2ØÐÒÐθ12ÔÖÑØØÒØØÖ Ó − cos θ12) Ä×Ñ×ÙÖ×ÓÑÒ××ÒÖ×E1 ÑÒÖmγ1γ2Ñ××ØÚËÐ×ÙÜÔÓØÓÒ×ÓÒ×Ö××ÓÒØ××Ù×ÙÒπ 0 <br />
p<br />
cos<br />
= (E, p)<br />
θ12 = p 1 · p 2<br />
| p 1 || p 2 |
ÒØ×ÖÖÙÖ×Ð×ÐÖ×ÓÐÙØÓÒÒÐÔÔÖÐÐÕÙØÐ ÚÐÙÖÖÓÒ×ØÖÙØmγγÚÓÖÙÖ 134.9743ÅÎ2ÒÔÖØÕÙÐ×Ñ×ÙÖ××ÓÒØ ÓÒÓØÚÓÖ< mγ1γ2 >= mπ0 =<br />
ÉÕÙÚÙØÐÐÖÙÖÑÙØÙÖÙÔπ 0ÉÙÐÐ×ØÐÐÖÙÖØØÒÙ ÉÕÙÓÓÖÖ×ÔÓÒÐÓ××ÒØÖ ÔÖ×Ð×ØÐ× ÉÕÙÐÐ×ØÐÓÖÒÙÓÒÔÙÔÖ×ÓÒØÒÙ Ò×Ð×Ð×ÒØÖØÓÒρ→ππÓÒÔÖÓÓÒ×ÑÐÖÐ× Ø ÅÎ<br />
ØØÓÒ×ÖØÖ×ØÕÙ×ÐÓØÚÓÖÙÖ ÔÖÚÒÑÒØËÙÖÙÒÖÒÒÓÑÖÚÒÑÒØ×Ð×ÔØÖÔÖÑØÙÒÒ ÔÓÒ×ÖÑÔÐÒØÐ×ÔÓØÓÒ×ÌÓÙØÓ×ÐÐÖÙÖÒØÙÖÐÐÙρÓÑÒÐÔÖÓ ÙÖØÓÒ×ÙÐØ×ÖÓÒÒØÖÐÔÖØÙÐÐÖ×ÓÒÒÚÒÑÒØ<br />
ÖÑ ÃÙÖÇÒÙØÐ×ÙÒÑÓÐ××ÒØÖØÓÒ×β×ÑÔÐØÐÖÐÓÖ Ñ×ÔÖÓÐÑÒØÒÓÒÒÙÐÐÇÒ××ØÖÑÒÖÐÔÖÐ×ÖÔÕÙ× ÄÑ××ÙÒÙØÖÒÓÕÙ×Ø××ÓÙÜ×ÒØÖØÓÒ×β×ØØÖ×ÔØØ<br />
ÔÖÓÐØØÖÒ×ØÓÒ2π | Mif | 2 ×ÔÔ×ÕÙÓÒØÒØÐÒ×Ø×ØØÒÙÜ ÓMifÓÒØÒØÐÒÓÖÑØÓÒÝÒÑÕÙÐÒØÖØÓÒØρf×ØÐØÙÖ <br />
ρf<br />
ÄÓÖ×Ð×ÒØÖØÓÒn→p + e− νeÐÐÑÒØÑØÖMifÔÙØ<br />
+ ØÖÓÒ×ÖÓÑÑÓÒ×ØÒØÁÐÓÒØÒØÐÓÒ×ØÒØÖÑÙÖÖG 2 ÜÔÖÑÐÓÖÒÙØÙÒ×Ö×ÓÑÑ××ÙÖÐ××ÔÒ×ØÐ×ÒÐ××ÙØÖ Ò×ÐÔØÖ×ÙÖÐÒØÖØÓÒÐÕÙÒÓÙ×ÒØÖ××ÑÒØÒÒØ×ØÐ Ò×ØØØ×ÒÙÜÓÒÐÒÓÑÖÔÓ××ÐØ×ÔÓÙÖÐÔÖÓØÓÒÐÐØÖÓÒ FÕÙ<br />
ÇÒÓÒ×ÖÔÖÓÒØÖÕÙÐÔÖÓØÓÒÓÙÐÒÓÝÙÒÐ×Ø×ØÐ×Ñ×× ×ØÓÒÒÒÇÒÔÙØØÖÒ×ÖÖØÓÙØÐÒØÖÑÒØÓÒÒØÐ×ÙÖÐ ØÐÒÙØÖÒÓ×ÔÖØÖÐÒÖ×ÔÓÒÐÐÑ××ÙÒÓÙÐÐÙ<br />
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×ØØÓÒÒÖψ =sin(kxx)<br />
= ÓØLkx<br />
×Ý×ØÑ×ÙÜÐÔØÓÒ×ÒÖØÓØÐ<br />
E0 = Ee + Eν<br />
sin(kzz)ÚÐ×ÓÒØÓÒ×ÙÜÓÖ×Ð<br />
ρf = dN/dE0<br />
<br />
sin(kyy)<br />
πnx nx =
ÜÔÖÒ× ÑÓÒÚÓÐÙÚÐ×ÑÔÖØÓÒ×Ñ×ÙÖ ÖÔÕÙÃÙÖÔÓÙÖ×ÒØÖÓÒ×ÐÖ××ÔØÖØÓÖÕÙ ØÖ×ÙÐØØ×ÙÜ<br />
|ÓÒ ÓÒÔÓÙÖÙÒÕÙÒØØÑÓÙÚÑÒØp =| p<br />
<br />
nx 2 + ny 2 + nz 2 = π<br />
L n <br />
<br />
<br />
p = <br />
kx 2 + ky 2 + kz 2 = π<br />
L
ÚÑÒØÔÐÙ×ÔØØÕÙÔ×ØÓÒÒÔÖ ÄÒÓÑÖÑÜÑÙÑØØ××ÔÓÒÐ×ÚÙÒÚÐÙÖÐÕÙÒØØÑÓÙ ÙÚÓÐÙÑÐ×ÔÖÖÝÓÒ <br />
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ÍÒÓ×Ó×ÐÒÖEeÐÐØÖÓÒÐÐEνÙÒÙØÖÒÓÓÒ×ÖÑ××<br />
d<br />
ÓÒÐÓÒØÖÙØÓÒÏ××ÓÐØØÒÐÚÙÒÐØÖÓÒÑÔÙÐ×ÓÒÓÑ<br />
dp×Ø<br />
=| ÒÙÐÐ×ØØÖÑÒÔÖEν<br />
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ÔÖ×ÒØÖpØp +<br />
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E0ÔÓÙÖÐ×mν<br />
<br />
= ×ØØÒÔÖÓÒØÖÙÒ×ÙÐÔÐÙ××ÒEe<br />
<br />
n = pL/π<br />
N ∝ L3p3 h3 ÈÖÖÒØØÓÒÓÒÓØÒØ dN ∝ L3p2dp h3 dp ∝ p2 <br />
dN<br />
∝ p<br />
dp dpν<br />
2 p 2 EeÕÙÓÒÒ<br />
ν<br />
pν |= E0 −<br />
d dN<br />
dp dE0<br />
∝ p 2 (E0 − Ee) 2<br />
dW ∝ 2 p 2 dp(E0 − Ee) 2ÓÓÒØÖdW p2dp ∝ (E0 − Ee) 2<br />
dW<br />
p 2 dp ∝ (E0 − Ee) 2<br />
Ee<br />
<br />
<br />
mνc<br />
1 −<br />
2<br />
2<br />
E0 − Ee<br />
−mνÔÓÙÖÙÒÒÙØÖÒÓÑ×× =<br />
E0
+ − → τ τ ÌÙÜÚÒÑÒØ×ÔÖ×Ù×ÙÐÔÖÓÙØÓÒ+−<br />
À×ØÓÖÙ×ÒÔÖ×Ù×ÙÐÔÖÓÙØÓÒτ + τ −ÔÖË<br />
ÓÒÒ ÄØÐÈÅÒØÓÒÒÓÒ×ÙØÖÔÖØÕÙÐÑ×ÙÖÐÐÖÙÖÙÙÖ×Ø 3.0ÎÚÙÒÒÚÙ 23Î<br />
< ÓÒÒÙÒÑ××mνe<br />
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< ÒÙØÖÒÓ×ÐËÆÔÖÑ×ÓÒÒÖÙÒÐÑØmνe
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µντνµÄÓÙÖ<br />
→ ÐÚÐÙÖmτÇÒ×ØÓÒÔÖÓÙ×ÙÐÔÖÓÙØÓÒ+−<br />
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ØÔÐØÙÜÚÒÑÒØ×ÔÖÓÙØ×ÔÖÜτ<br />
ØØÑØÓØÒÔÖÐÓÐÐÓÖØÓÒËÔÓÙÖØÒÖÓÑÔØÙ<br />
→ eντνeØτ<br />
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e−ÓÖµ ÓÙÔÐ×e +<br />
µ −Øe<br />
1776.9 +0.2<br />
−<br />
µ +ØÔ×e<br />
0.2ÅÎ<br />
−0.3 ± + +<br />
lepton avec<br />
grand p<br />
⊥<br />
µ −<br />
→<br />
τ + τ −ÓÑÑ<br />
<br />
p<br />
ÚÒÑÒØÔÖ×ÒØÒØÐ×ÒØÙÖÐ×ÒØÖØÓÒÐÔØÓÒÕÙÙ<br />
p<br />
z<br />
ν non observe’<br />
×ÙÖÐÑ××ÙÒÔÖØÙÐÈÖÜÑÔÐÐØÙÙ×ÔØÖ×ÐØÖÓÒ× ÍÒÒÑØÕÙÒÓÑÔÐØÔÖÑØÙ××ÓØÒÖ×ÖÒ×ÒÑÒØ×<br />
Ó×ÓÒWÔÖÓÙØÐÓÖ×ÙÒÓÐÐ×ÓÒp − p<br />
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Ð×ÒØÖØÓÒW →<br />
<br />
eνeÓÐ×Ó×ÓÒ×Ï×ÓÒØÔÖÓÙØ×Ò××ÓÐÐ×ÓÒ×
[GeV]<br />
manquante<br />
E ⊥<br />
60<br />
40<br />
20<br />
−<br />
<br />
0<br />
0<br />
20 40 60<br />
e<br />
E⊥ [GeV] ÒÖØÖÒ×ÚÖ×ÐÑÒÕÙÒØE manquanteÒÓÒØÓÒÐÒÖ<br />
⊥ ØÖÒ×ÚÖ×ÐÐÐØÖÓÒE e ⊥ÔÓÙÖ×ÚÒÑÒØ×ÒØ×Ð×ÒØÖØÓÒ<br />
W ± → e ± ÙÒÓÑÔÓ×ÒØØÖÒ×ÚÖ×ÐÑÔÓÖØÒØØØÒÖÑÒÕÙÒØÄ×ØÙ ÚÙÐÖÒÑ××ÙÓ×ÓÒÄÒÙØÖÒÓÕÙÔÔÐÓ×ÖÚØÓÒÑÒ×Ø ×ÔÖ×ÒÔÖÐÒØÖÑÖÙÒÖÒÒÖÑÒÕÙÒØØ×ÓÙÚÒØÔÖ ÖÒÒÖØ×ÓÙÚÒØÙÒÓÑÔÓ×ÒØØÖÒ×ÚÖ×ÐÑÔÓÖØÒØ×ÓÒÒÖ<br />
+ νe(νe)<br />
ØÓÒ×ØÖÒØÙ×ÙÒ×ÒØÖØÓÒβÒ×ÐÕÙÐÐÐÒÙÐÓÒÒØÐ ÐÖÒÓÒØÖ×ÔÖØÓÒ×ÙÔÖÓØÓÒØÐÒØÔÖÓØÓÒÚÓÖÔØÖÖÑÒØ× ÕÙØÖÒ×ÔÓÖØÒØÙÒÖØÓÒÒÓÒÒÙÐÑÔÙÐ×ÓÒ×ÒÙÐÓÒ×ÒÒÖÐ ×ØÔÖØÕÙÑÒØÙÖÔÓ×ÄÏÙÒÑÔÙÐ×ÓÒÚÖÐÖÐ×ØÔÖÓÙØÔÖ<br />
×ÓÒÙÑÓÙÚÑÒØÙÓ×ÓÒÑÖËÐÓÒÒÐÒÔÖÑÖÔÔÖÓÜÑØÓÒÐ Ð×ØÖØÓÖ×ÙÐÔØÓÒÖØÙÒÙØÖÒÓÒ×ÓÒØÔ×ÓÐÐÒÖ×ÒÖ<br />
E e ⊥ ≃ E ν ⊥ ≡ E manquante<br />
⊥ Ä×p ℓ ⊥ØE ℓ ⊥×ÓÒØ×ÓÑÔÓ×ÒØ×ØÖÒ×ÚÖ×Ð×p ℓØE ℓ ÓÒÒ×ÓÙÖÒ×ÔÖÐÔÔÖÐÐÑ×ÙÖÙ×ÙØ×ÐÔØÓÒ×Ö×Ø× ÖÓÒ×××Ù×ÐÓÐÐ×ÓÒØÓÒÒ××ÒØÐÖØÓÒØÐÒÖ××ÙÜ ØÖÓÒ×ØÒÐÒÖÖ×ÓÒÒÖÒØÕÙÒÖÙÒ××ÒØÐÒ×ÑÐ×<br />
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ÓÑÔÓ×ÒØØÖÒ×ÚÖ×ÐÐÕÙÒØØÑÓÙÚÑÒØÙÓ×ÓÒÓÒÔÙØÖÖ<br />
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É×ÓØ ν, ÉÑÓÒØÖÖÕÙ1<br />
ÄÖ×ÙÐØØÐÜÔÖÒ×ØÓÒÒ×ÓÙ×ÐÓÖÑ<br />
δ = 2(N− − N+)/(N− + N+) = +0.017 ± 0.003<br />
100 ∗ 0.017/0.025 = 68 ± 14% <br />
ÐØØÙÒÙØÖÒÓÙÖÉÙÚÙØÈ 1 λ = − ν, 1 λ = − 2<br />
2<br />
2 (1 ± γ5 )×ÓÒØ×ÔÖÓØÙÖ××ÖÔÔÓÖØÖÙ§
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ÈÓÙÖÙÒÔÖØÙÐÔÓÒØÙÐÐÐØÖÓÒÖ×ÔÒsÖqÑ××<br />
×ØÐØÙÖÄÒÄÐØÖÓÒÖÙÒ<br />
2mc× <br />
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γ×ØÐÖÔÔÓÖØÝÖÓÑÒØÕÙ<br />
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ωL<br />
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ÒÖÐÑÒØÜÔÖÑ×ÒÑÒØÓÒÓÖµBÒ×Ð××ÖÓÒ×ÐÐ×Ð Ò×Ð××ÐÔØÓÒ×Ð×ÚÐÙÖ×ØÙÐ×ÙÑÓÑÒØÑÒØÕÙ×ÓÒØ<br />
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×ÔÖÒØ×ÙÚÒØÐÙÖØØ×ÔÒ×z <br />
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mÐÚÐÙÖÙÑÓÑÒØÑÒØÕÙÔÓÐÖµ×ØÒÔÖ<br />
µ = g q<br />
Ó <br />
∆E = 2µB , B =| B |<br />
= g q<br />
2mc B = γB <br />
γ = µ/× <br />
×ÓÒØÒÑÒØÓÒÒÙÐÖµN<br />
µB = e<br />
2mec<br />
; µN = e<br />
2Mpc
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ÕÙ×ÒÙÐÓÒ×ÓÒØÙÒ×ØÖÙØÙÖÒØÖÒ ÓØÒØÔÖÐÕÙØÓÒ ÜÔÖÑÒÙÒØ×ÑÒØÓÒÒÙÐÖµNÓÒÓØÒصpÔÓÙÖÐÔÖÓØÓÒ<br />
−1.91ÔÓÙÖÐÒÙØÖÓÒ×ÚÐÙÖ××ÓÒØÐÓÒ×ÙÖ×ÙÐØØÕÙÐÓÒ Ö×ÓÒÒÓÒØÖÓÙÚγpωR± 4Ö×−1−1<br />
ØÖÑÒØÓÒ×ÒÓÑÐ×ÐÐØÖÓÒØÙÑÙÓÒ ÔÓÙÖÐÔÖÓØÓÒØÔÓÙÖÐÒÙØÖÓÒ ÕÙÑÓÒØÖ<br />
= صn<br />
B<br />
ω<br />
Puissance<br />
absorbée<br />
échantillon<br />
<br />
ωR ω<br />
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×ÔÓ×ØÔÓÙÖÐÑ×ÙÖγp<br />
ÑÕÙÜÔÐÓÖÐÔÖØÙÐÒØÖØÚÐÔÖØÙÐÔÓÒØÙÐÐÌÓÙØÓ× ØÓÙØÒ×ØÒØÐÔÖØÙÐÔÓÒØÙÐÐÔÙØÑØØÖÙÒÔÓØÓÒÚÖØÙÐÄÑ××ÓÒ ÐÙÚÓÐÐÓÒ×ÖÚØÓÒÐÒÖÑÔÙÐ×ÓÒØÐÓØØÖÖ×ÓÖÒ ÄÖÔ×ØÐÓÒØÖÙØÓÒÐÓÖÖÐÔÐÙ××ÐÔÓØÓÒ Ð×ÓÒ<br />
ÔÓØÓÒÒ×ÙÔÔÐÑÒØÖÜÖÔ ÔÓ××ÐØÙÒÖÔÙØÝÔ ÙÒØÑÔ×ÕÙ×ÓØÓÑÔØÐÚÐÖÐØÓÒÒÖØØÙÀ×ÒÖÓÐ<br />
ÊÄÖ×ÓÐÐØÈÄÒÖÈÝ×ÊÚÄØØ<br />
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ÐÙÐ×ÔÓÐÖ×À2Ç×ÓÒØÔÓÐÖ××ÔÖÙÒÑÔÖÔÖÙÒÖÕÓÒ<br />
αemÄÖÔÓÒØÒØÙÒÓÙÐÐØÖÓÒÔÓ×ØÖÓÒÔÓÐÖ×ÓÑÑÐ×ÑÓ<br />
ÓÒÑÓÔÖÐ×ÓÖÖØÓÒ×ÖØÚ×ÇÒÜÔÖÑÐÚÐÙÖØÓÖÕÙ ÐÔÖØÙÐÒÙÐÑÑÓÒÕÙÐ×ÑÓÐÙÐ×ÙÖÙ×ÒØÐÔÓØÒ ÔÖÐÔÓÐÖ×ØÓÒÙÚØØÓÒØÖÙØÓÒÓÒ×ØØÙÙÒ×ÓÖØÖÒ ØÐ××ÓÙÒÖÕÑÑÖÔÖÙÒØÙÖǫÄÚÐÙÖγ×Ø<br />
ÈÓÙÖÐÐØÖÓÒ ÚÐÙÖÑ×ÙÖÈ αem/π<br />
ÈÓÙÖÐÑÙÓÒ <br />
ÚÐÙÖÑ×ÙÖÈ <br />
= ÐÒÓÑÐAℓ<br />
Ò×Ð×ÙÑÙÓÒÓÒØÒÙÓÑÔØÓÖÖØÓÒ×ÖÓÒÕÙ×ÐÓÖÖ ± ± 2 ± −9 3 ± −9<br />
ÙØÙÔØØÖØÔÖÖÔÔÓÖØ<br />
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−9 2 3<br />
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−9<br />
ÔÖÐÐÐÐÙÖÚØ××ÇÒÐ×ÒØÒ×ÐÔÔÖÐÐÓÖÒÙÒÑÔ ÔÖÔÒÙÐÖÐÖØÓÒÙ×ÙÐÖÓØØÓÒÝÐÓØÖÓÒÕÙÚØ×× ÒÙÐÖωcÚ×ÓÙØÖÐÔÖ××ÓÒÄÖÑÓÖÙÑÓÑÒØÑÒØÕÙ ËÙÔÔÓ×ÓÒ×ÙØÖÔÖØ×ÐÔØÓÒ×ÔÓÐÖ××ÐÙÖ×ÔÒØÒØÔÖÐÐÐÓÙÒØ<br />
ÚØ××ÒÙÐÖ <br />
(gℓ − 2)/2Ó(ℓ = e, µ)×ÓÙ×ÐÓÖÑÙÒ×ÖÒÔÙ××Ò×<br />
ÖÐÖØÖ×ÔÖÐÖÕÙÒÝÐÓØÖÓÒÕÙ<br />
ν = ωc/2π, ωc = e<br />
mc B
Ô×δÚ×ÓÙØÖ ÓÒ×ÔÖ×ÕÙØÓÙÖÐÖØÓÒÐÔÓÐÖ×ØÓÒÔÖÖÔÔÓÖØ<br />
ωL = (g/2)ωc<br />
ÖÑÒØÙÔÐÒÙ×ÓÒÙ×ÓÒÔÓÐÖ×ÒØÁÐ××ÓÒØÑÒ××ÔÖÐÖ Ò×Ð×ÐÐØÖÓÒÓÒÙØÐ×ÐÑØÓÓÙÐÙ×ÓÒÍÒ×<br />
Ò×ÙÒÓÙØÐÐÑÒØÕÙØÙÓÙØÙÒÖØÒØÑÔ×Ò×ÓÒØ ÙÐØÖÓÒ×ÒÑÒØÓÐÐÑØ×ØÖ×ÙÖÙÒÐÙØÓÒ×ÐØÓÒÒ<br />
δ = (ωL − ωc)t = AℓeBt/mc<br />
δÓÐÓÒÙØÐÚÐÙÖÐÒÓÑÐ ÜØÖØ×ÔÓÙÖØÖÙ×××ÙÖÙÒ×ÓÒÐÙÙ×ÓÒÒÐÝ×ÒØÄ× Ñ×ÙÖ×ÐÖØÓÒÐÔÓÐÖ×ØÓÒØÐÖØÓÒÔÖÓÔØÓÒ× ÐØÖÓÒ×Ð×ÓÖØÙÑÔÑÒØÕÙÔÖÑØØÒØØÖÑÒÖÔ× Ò×Ð×ÙÑÙÓÒÓÒÙØÐ×Ð×ÔÖÓÔÖØ×ÔÖØÙÐÖ×Ð×ÒØÖØÓÒ ÐÇÒÔÖØÙÒ×Ùπ ±××ÒØÖÒØÒπ ± → µ ± Ó×Ú×ÐØ×ÓÔÔÓ××ÇÖÓÒÚÙÕÙÐÒÙØÖÒÓÜÐÙ×ÚÑÒØÙÒ ÐÖÖÒØÐÖÔÓ×ÙÔÓÒ×ÔÒ ÐØÒØÚÄÓÒ×ÖÚØÓÒÙÑÓÑÒØÒØÕÙÑÔÐÕÙÙ××ÙÒÐØ ÐÑÙÓÒØÐÒÙØÖÒÓ×ÓÒØÑ×Ó× νµ(νµ)Ò×<br />
ÈÖÒÓÒ×ÔÖÜÑÔÐÐ×π +××ÒØÖÒØÒÚÓÐÓÒÔÙØÓØÒÖ× Ò××ÐÑÙÓÒØÑ×ÔÖÐÐÐÑÒØÙ×ÙØÐÒÙØÖÒÓÒØ ÑÙÓÒ×ÔÓÐÖ××ÒØÚÑÒØ×ÐÓÒ×ÐØÓÒÒÙÜÓÒØÐÒÖ×ØÑÜÑÐ<br />
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×××ÙÖØÖÒ×ÐÓÒÙÖØÓÒ×Ù×ÑÒØÓÒÒØÚÓÖÐ×ÔÓ×ØÖÓÒ×Ñ× ØÓÒÓÔÔÓ×ÙÔÓ×ØÖÓÒËÐÓÒ×ÐØÓÒÒÐ×ÔÓ×ØÖÓÒ×ÒÖÑÜÑÐÓÒ Ð×ØÙØÓÒÒ×ÐÕÙÐÐÐ×ÙÜÒÙØÖÒÓ××ÓÒØÑ×ÔÖÐÐÐÑÒØØÒÖ<br />
mµ/2ÐÓÖÖ×ÔÓÒ<br />
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×ÔØÖÒÖÙÔÓ×ØÖÓÒÙÒÚÐÙÖÑÜÑÐ≈<br />
ÐØÖÓÑÑÐÐÙÑÙÓÒÙÖ ×ÔÖ×ÒØÄÒØÖØÓÒÐÚÓÖ×Ð×ÒØÖØÓÒÓÐÔÓ×ØÖÓÒ×ØÑ× ÒÓÒÐ×ØÙØÓÒÙÑÓÑÒØÓÐÔÓÒ××Ø×ÒØÖËÐÓÒÓÒ×Ö ÓÙ<br />
Ò×ÐÖØÓÒÔÓÐÖ×ØÓÒÙµ +ÓÒÑÓÒØÖÕÙÈÖÓ± µ (θ) ∝ 1 ±cos(θ)Ó ÄÐص −×ÖØÔÓ×ØÚ <br />
ÐÖØÓÒÙÑÓÙÚÑÒØ×ÖÐÑÑÕÙÐÒØÓÒË ℓÙÒ<br />
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ν<br />
ν<br />
µ<br />
e<br />
ν<br />
µ<br />
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01<br />
01<br />
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+<br />
ν<br />
e<br />
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= V (r1 −<br />
+ r1, x + r2) = V (r1 −<br />
= −dV/dr1 = −dV/d(r1 − r2) = ... = −F<br />
F 1 + F 0<br />
⇕
ÓØÒÙ×ÙÄÈ×ÓÒØÒÚÖÒØ×ÔÖØÖÒ×ÐØÓÒÙÄÈÔÜ×ÙÖÙÒÔÐÒØÒ ÓÖØÙØÓÙÖβÇÖÓÒ×ÇÒÔÖÐÒ××ØÖÒ×ÓÖÑØÓÒØÚ ØÐÓÒÚØØ×ÙÖÙÒØÖÒ×ÐØÓÒxÙ×Ý×ØÑØÙÐ×Ö×ÙÐØØ×ÔÝ×ÕÙ× ÇÒ×ÖØÖÖÚÙÜÑÑ×ÓÒÐÙ×ÓÒ××ÐÓÒÚØÓÒ×ÖÐÓ×ÖÚØÙÖÜ<br />
ÓÒ×ÖÓÒ×ÙÒØÖÒ×ÓÖÑØÓÒÔ××ÚÇ→ÇÔÖÜÑÔÐÙÒØÖÒ×ÐØÓÒ<br />
ËÓØψ(x)ÐØØÙ×Ý×ØÑÔÝ×ÕÙÒxÔÓÙÖÐÓ×ÖÚØÙÖÇÄØØ ×Ý×ØÑÒx ′ÔÓÙÖÐÓ×ÖÚØÙÖÇ×ØÒÔÖÐÓÒØÓÒØÖÒ×ÓÖÑψ ′ ØÐÐÕÙ<br />
ËÐÓÒÒÚÖ× ψ<br />
x = f −1 (x ′ ÓÒÔÙØÖÖ <br />
)<br />
ψ ′ (x ′ ) = ψ(f −1 (x ′ <br />
))<br />
x ′×ØÕÙÐÓÒÕÙÓÒÓÒÔÙØÐ××ÖØÓÑÖÐ×ÔÖÑ××ÙÖx<br />
ψ ′ (x) = ψ(f −1 <br />
(x)) Ð×ÙÖÙÒÒÓÙÚÐÐÒØÖÔÖØØÓÒÐØÖÒ×ÓÖÑØÓÒψ ′ ÒÒØÔÓÙÖÐÓ×ÖÚØÙÖÇÐÓÒØÓÒÓÒÙ×Ý×ØÑØÚÑÒØØÖÒ×ÓÖÑ ÔÐØÓÙÖÒ ÒÔÖÒÔÐ×ØÖÒ×ÓÖÑØÓÒ×ØÚØÔ××Ú×ÓÒØÕÙÚÐÒØ×Ò×ÙÒ (x)×ØÑÒØ<br />
ÒÑÒØÓÒÑÔÖÑÐÑÑÖÓØØÓÒÊØÖÒ×ÓÖÑØÓÒÔ××ÚÐÓ×ÖÚØÙÖ ×Ô×ÓØÖÓÔ×ÐÓÒØÙÔÜÐÖÓØØÓÒÊØÚÙÒÓØËØ×ÑÙÐØ<br />
ÐØÖÒ×ÓÖÑØÓÒf ×ÓØÖÓÔÚ×Ú×ÐÓØËÇÓÒ×ØØÖÙÒÒÑÒØÓÒÙÖØÓÒ ÇÇÒÖÒÖÔ×ÓÑÔØÙÒÑÒØ×ÙÖËÈÖÓÒØÖ×Ð×ÔÒ×ØÔ× ÇÒÖØÐØÖÒ×ÓÖÑØÓÒØÚÔÖÙÒÓÔÖØÙÖÍÙÒØÖÕÙÔÒ<br />
ψ ′ <br />
ÎÓÖÖÖÒ<br />
= Uψ<br />
<br />
x → x ′ = x + aÕÙÐÓÒ×ÝÑÓÐ×ÔÖ<br />
x → x ′ = f(x) <br />
′ (x ′ ) = ψ(x) <br />
ÄÙÒØÖØÔÖÑØÓÒ×ÖÚÖÐÒÓÖÑψ<br />
<br />
Uψ Uψ = ψ ψ U † U = 1 U −1 = U † <br />
(x ′ )
ÈÖÐØÖÒ×ÓÖÑØÓÒfÐÓ×ÖÚÐÚÒØÐÓ×ÖÚÐÓÒØÐ×ÔÖÒ ÑØÑØÕÙÔÓÙÖÐØØψ ′×ØÒØÕÙÐÐÔÓÙÖÐØØψ<br />
〈ψ|A|ψ〉 = 〈ψ ′ |A ′ |ψ ′ ÉÑÓÒØÖÖÕÙ <br />
〉<br />
ÓÒÓØÒØÍ͆ØÍÍ Ëf×ØÙÒ×ÝÑØÖÚ×Ú× ÓÒÓÑÑÙØÚÍ<br />
A<br />
ÚÒØÔ××ÖÙØÖØÑÒØ×ÖÒØ××ÝÑØÖ×ÖÑÖÕÙÓÒ×ÕÙÓÒÓÒ×<br />
×ØÖ××ØÒÚÖÒØ×ÓÙ×f<br />
Ö×ÓÙÚÒØ×ØÖÒ×ÓÖÑØÓÒ×ÒÒØ×ÑÐ×ØÖÒ×ÐØÓÒÖÓØØÓÒ ÕÙ×ÑÔÐÐ×ÐÙÐ×ÇÒÔÙØÒ×ÙØÒØÖÖÔÓÙÖÓØÒÖÐØÖÒ×ÓÖÑØÓÒ ÒÏÛÐÐÓØÓ×ÖÒÓÛÌÓÖ×ØØØÑÓÑÒØÖ××Ò×ØÓÔÐÙ<br />
<br />
[U, A] = 0<br />
Ì×ÛÓÖÐÛ×ÑÙÖÖÓÒÒÓÐÖ×ØÐÐ ÑÓÑÒØÑÒÙØÐÝÓÙØÓÓÙ×ÒØÒ×ÒÔÔÒ××ÙÒÐÝÖÒØÛÓÖÐ ØÛ×ØØÒØÖÛÓÖÐØÖÓÙÐÓÒØÔÖØÓÖÚÖÝØÒ×ØÛ×ÓÖ ÒÔÔÐÙØÒ×ØÓÔÐÙÒÑØÒÝ×ÖÔØÙÖÒÒÑÓÚÑÒØÌØÛ××<br />
ÔÓ××ÐÙ×Ý×ØÑÚ×Ú×ÙÒÓ×ÖÚÐOÈÖÜÑÔÐÙÒÐÐÐÒ ØØ×ØÓÒÔÓÖØ×ÙÖÐØÓÒÙÒÓÔÖØÙÖÕÙÖÔÖ×ÒØÙÒ×ÝÑØÖ ØØ×ÓÔÖØÙÖ×Ø×ÝÑØÖ×<br />
×ØÒÚÖÒØÔÖÖÓØØÓÒ×ÐÓ×ÖÚÐ×ØÐÓÙÐÙÖ ËÓÒØ ψÐØØÙ×Ý×ØÑ<br />
OÙÒÓ×ÖÚÐ××ÓÙÒØØÙÖØÙÒÜÔÖÑÒØØÙÖ<br />
UÙÒÓÔÖØÓÒÙØÝÔÖÓØØÓÒØÖÒ×ÐØÓÒÔÖØ ØÝÔÕÙÑÒØÐÒÖÙ×Ý×ØÑ×ÓÒÀÑÐØÓÒÒ ØØÐÐÕÙ<br />
U † ÉÙÐÓÔÖØÓÒU×ÓØ××ÓÙÒ×ÝÑØÖÓÙÒÓÒÐÙØÒÒÑÓÒ×× ÓÒØÓÒ×ÙØÝÔ×ÓØÖÓÔÐ×ÔØ ×ÐÓÒØÖÒ×ÓÖÑÐ×Ý×ØÑ<br />
U = 1<br />
ψ ′ = UψØ×ÑÙÐØÒÑÒØÐØØÙÖU(O) = O ′ = UOU †ÐÖ×ÙÐØØ ÒØ ÐÜÔÖÒÖ×ØÒÒ ÓÙÐ×Ñ×ÌÄÓÒÖÌØÑÓØËÓÙÐ <br />
′ = UAU †
Ñ×ÙÖO ′ÔÓÙÖψ ′ ) =< ψ ′ | O ′ | ψ ′ >=< Uψ | UOU † ÕÙ×ÖØÙ××<br />
| Uψ ><br />
ÍÒØ×ØÒÚÖÒ ÓÒÜÐØØÙÖOØÓÒÓÙÐ×Ý×ØÑ ÓÒÜÐ×Ý×ØÑØÓÒÓÙOÒ×Ò×ÒÚÖ× ×ÝÑØÖÔÙØ×ÖÙÜÓÒ× ÇÒÓØÒØÓÒ< ψ<br />
ψ<br />
ψ ÚO ′′ÓÒÒÔÖU −1 Ø×ÓÒØÕÙÚÐÒØ××Ð×Ô×Ø×ÓØÖÓÔØ ÒØ ËÐÓÒÙÒ×ØÙØÓÒ×ÝÑØÖÐÓÖ×<br />
<<br />
ÁÒÚÖÒÔÖØÖÒ×ÐØÓÒÒ×Ð×ÔÔÖØÖÒ×ÐØÓÒ<br />
ÓÒ×ÖÓÒ×ÙÒÓØÖØÔÖ×ÓÒØÓÒÓÒψ(xÍÒØÖÒ×ÐØÓÒÒ Ò×ÐØÑÔ×ØÔÖÖÓØØÓÒÒ×Ð×Ô ÄØÖÒ×ÐØÓÒÒ×Ð×Ô<br />
ÒÒØ×ÑÐ ÒÙÒØ×ÒØÙÖÐÐ×p≡−i∇ÇÒÔÙØÓÒÒØÖÓÙÖÐÓÔÖØÙÖØÖÒ×ÐØÓÒ<br />
ÒØ×ÑÐx →<br />
ÕÙÓÒÒ<br />
D(δx) ÍÒØÖÒ×ÐØÓÒÒXÔÙØ×ÓÑÔÓ×ÖÒNÔØØ×Ô×δx =<br />
<br />
D(X)<br />
(ψ † U † UOU † Uψ) = (ψ † O ψ) = (ψ † Oψ)<br />
Ú(ψ, ϕ) = d3xψ∗ ψØϕÔÔÖØÒÒØÐ×ÔÀÐÖØ×ØØ×<br />
(x)ϕ(x), ′ | O ′ | ψ ′ >ÓÑÑÔÖÚÙ<br />
>=< ψ | O | ψ<br />
→ ψ ′ O → O<br />
→ ψ O → O ′′<br />
(O) ≡ U † OU<br />
ψ ><br />
< ψ ′ | O | ψ ′ >= (ψ † U † OUψ) = ψ † (U † OU)ψ =< ψ | O ′′ | ψ ><br />
< ψ ′ | O | ψ ′ >=< ψ | O ′′ | ψ >=< ψ | O | ψ >=< ψ | O ′ | ψ ><br />
[U, O] = 0<br />
ψ ′ | O | ψ ′ >=< ψ | O ′′ |<br />
δxÐÓÖÖÇδx×ÜÔÖÑÔÖ<br />
x +<br />
ψ ′ ≡ ψ(x − δx) ∼ = (1 − δx · ∂<br />
∂x )ψ(x) = (1 − iδx · p)ψ(x) <br />
<br />
≡ 1 − iδx · p<br />
X/N<br />
D(X) ≡ D(δx) N = (1 − iδx · p) N <br />
(iNδx · p)2 (iNδx · p)3<br />
≈ 1 − iNδx · p + − + ...<br />
2! 3!<br />
≡ exp(−iX · p)
ÕÙØÓÒ× ØÑÖÒÖÐ×ØØ×ÐÙÚÒØØÔÖ×ÐØÖÒ×ÐØÓÒÐ× ÄÒÚÖÒÔÖØÖÒ×ÐØÓÒ×ÒÕÙÐ×ØÑÔÓ××ÐÔÖÐÑ×ÙÖÙ×Ý× ÊÚÒÓÒ×Ù×ÒÒØ×ÑÐD(δx)ÕÙÐÓÒÚÖÖÔÓÙÖÐÐÖÐ×<br />
ØÖÙØÔÖÐÒÚÖÒÐÒÖÙ×Ý×ØÑÐÓÐÑÒØÔÐδxÄÀ ÑÐØÓÒÒÀÓØ×Ø×ÖH(x)<br />
ÓÓÒÙØÐ×<br />
=<br />
ÇÒÒØÖ<br />
ÔÔÐÕÙÓÒ×ÐÓÔÖØÙÖD×ÙÖÐØØφ(x) =<br />
ÓÒØÓÒÓÒψ(x)ÕÙÐÓÒÕÙÓÒ<br />
Ð××ÒÚÖÒØÐÀÑÐØÓÒÒÚÓÖ ÓÑÑÙØÚÐÀÑÐØÓÒÒÕÙ×ØÙÒÓÒÕÙÚÐÒØÒÕÙÖÕÙ Ò×Ù×ØØÙÒØ Ò×ÓÒ<br />
ÒÓÒÐÙ×ÓÒÓÒÜÔÖÑÐÒÚÖÒÀÐÓÖ×ÙÒØÖÒ×ÐØÓÒÙ×Ý×ØÑ ÕÙÓÒ×ØØÙÙÒ×ÝÑØÖØÖÒ×ÐØÓÒÐÒÓÙ×ÓÒÙØÐÐÓ<br />
ÑØÖδÍδÕÙÐÓÒÜÔÖÑÔÖ ÊÔÖÒÓÒ×Ð×ÒÖÐÙÒØÖÒ×ÓÖÑØÓÒÙÒØÖÒÒØ×ÑÐÔÖ ÓÒ×ÖÚØÓÒp<br />
U(δ) = 1 + iδG + O(δ 2 ×ØÔÔÐÐÒÖØÙÖÐØÖÒ×ÓÖÑØÓÒÇÒÔÙØÖÑÓÒØÖÐØÖÒ×<br />
δ <br />
) ÓÖÑØÓÒÒ∆<br />
ÐÐÑØ<br />
U(∆<br />
<br />
<br />
δ iGU(∆)<br />
<br />
H(x − δx)<br />
H(x)ψ(x)<br />
0ÔÓÙÖÙÒ<br />
D(H(x)ψ(x)) = Dφ(x) = φ(x−δx) = H(x−δx)ψ(x−δx) = H(x)ψ(x −δx) =<br />
H(x)Dψ(x)<br />
<br />
D(H(x)ψ(x)) = H(x)Dψ(x)Ó(DH(x) − H(x)D)ψ(x) =<br />
ÓØÒØÐÐÓÓÒ×ÖÚØÓÒÐÕÙÒØØÑÓÙÚÑÒØ<br />
[D, H] = 0<br />
<br />
[p, H] = 0<br />
+ δ) = (1 + iδG)U(∆) <br />
[U(∆ + δ) − U(∆)]/δ = iGU(∆) <br />
→ 0 :Í(∆)<br />
∆ =
ØÖÒ×ÓÖÑØÓÒÍÓØØÖÙÒØÖ ÄÒØÖØÓÒÓÒÒ ÐÓÒ×ØÒØÔÙØØÖÓ×ÐÔÓÙÖ×Ø×ÖÐÓÒØÖÒØÍÄ<br />
U(∆)<br />
U † U = 1 ⇒ 1 − iδ(G † − G) + O(δ 2 <br />
) = 1 ÐÑÓÒØÖÕÙG † ÚH GÓÑÑÙØÙ××<br />
ÐÓÐÓÔÖØÙÖÕÙÒØØÑÓÙÚÑÒØ×ØÔÔÐÐÒÖØÙÖ×ØÖÒ×Ð ÓÒÐÓ×ÖÚÐG×ØÙÒÓÒ×ØÒØÒÓÒØÓÒÙØÑÔ×Ò×ØØØÖÑÒÓ ØÓÒ×Ò×Ð×Ô<br />
ÙØÖÔÖØ×UÓÑÑÙØÚHHÒÚÖÒØ×ÓÙ×U<br />
ÄØÖÒ×ÐØÓÒÒ×ÐØÑÔ×<br />
[G,<br />
ÑÒØÐÓÖÒÐÐÐØÑÔÓÖÐÐ ØÑØØÓÒ×ÕÙÐ×Ý×ØÑÔÝ×ÕÙÒ ×ÓØÒÖÒÐÔÖ×ÙÒØÖÒ×ÐØÓÒ ÓÒ×ÖÓÒ×ÑÒØÒÒØÙÒÒ<br />
ÐØØÖÑÒÖÙÒÓÖÒ×ÓÐÙÙ Ò×ÐØÑÔ×ÇÒÒÓÒÔ×ÐÔÓ×× ØÑÔ×ÔÖØÖ×ÖØÖ×ØÕÙ×Ù×Ý× ÖÚÒØÐ×Ý×ØÑÒÔÒÒØÔ×Ü ØÑÄÀÑÐØÓÒÒÓÙÐÄÖÒÒÕÙ<br />
ÔÖ××ÓÒÐÓÒ×ÖÚØÓÒÐÒÖ ÓÒ×ØÒØÐÒ×ØÖÒÙØÖÕÙÐÜ<br />
∂tÓÒÀ×ØÙÒ<br />
ØÙÖ××ÓÐØÖÒ×ÐØÓÒÒ×ÐØÑÔ× Ù×Ý×ØÑÄÀÑÐØÓÒÒÀ×ØÐÓÔÖ ÔÐØÑÒØØ∂H<br />
ØÔÖ×ÐÖÓØØÓÒ×ÓÒØÒ×ÖÒÐ×ÇÒÚÑÓÒØÖÖÕÙÐÒÚÖÒÔÖÖÓØ ÄÒÚÖÒÔÖÖÓØØÓÒ×ÒÕÙÐ×ØØ×ÙÒ×Ý×ØÑÔÖØÙÐ×ÚÒØ ÄÖÓØØÓÒÒ×Ð×Ô<br />
ÒÖÐ×Ð×Ù×ÙÒÔÖØÙÐÚ×ÔÒ ÍÒÖÓØØÓÒÒÒØ×ÑÐδθÙØÓÙÖÐÜÞ×ØÖÔÖ×ÒØÔÖÐÑØÖÅ ÔÖØÙÐ×Ò××ÔÒÑ××Ò×ÐÔÖÓÙÚÖÓÒÔÙØÖÑÖÕÙÐ×ÓÒÐÙ×ÓÒ××ÓÒØ ØÓÒ×Ø××ÓÐÓÒ×ÖÚØÓÒÙÑÓÑÒØÒÙÐÖÇÒÓÒ×ÖÐ×ÙÒ<br />
<br />
⎠ ÊÓØØÓÒ:x↦→Mx M<br />
<br />
G×ØÀÖÑØÕÙÙÒÖØÖ×ØÕÙ×Ó×ÖÚÐ×<br />
= exp(iG∆) + C<br />
<br />
= G,<br />
H] = 0<br />
⎛<br />
⎞ ⎛<br />
cosδθ − sin δθ 0<br />
≡⎝<br />
sin δθ cosδθ 0 ⎠ ∼ = ⎝<br />
0 0 1<br />
1 −δθ 0<br />
δθ 1 0<br />
0 0 1<br />
⎞
ÇÒÒØÖÓÙØÐÓÔÖØÙÖÊzÕÙØÖÒ×ÓÖÑÐØØψ<br />
Rz(δθ)ψ(x) ≡ ψ(M −1 x) = ψ(x + yδθ, −xδθ + y, z) ∼ ×ÒØ×ÐÓÒÐÜÞÐÓÔÖØÙÖÑÓÑÒØÒÙÐÖ ÄÜÔÖ××ÓÒÒØÖÔÖÒØ×ÙÖÒÖØÖÑ×ØÔÖÓÔÓÖØÓÒÒÐÐÐÓÑÔÓ<br />
= ψ(x) + δθ(y∂x − x∂y)ψ(x)<br />
L = r × ≡ pÄz i(y∂x − x∂y)ÕÙÓÒÒi 2 1 <br />
= −1<br />
Rz(δθ)ψ(x) = (1 − iδθLz)ψ(x) ÇÒÔÙØÒÖÐ×ÖÙÒÖÓØØÓÒÙØÓÙÖÐÜn | n |=<br />
Rnψ(x) = (1 − iδθnL · n)ψ(x)<br />
H(x)ψ(x)ÓÒÒÓØx ′ = M −1x) ÔÔÐÕÙÓÒ×ØÓÔÖØÙÖÐØØφ(x) =<br />
Rn(H(x)ψ(x)) = Rnφ(x) = φ(x ′ ) = H(x ′ )ψ(x ′ ÓÓÒØÙ×ÐÓÒØÓÒÒÚÖÒ )<br />
ËÐÓÒÓÒ×ÖÐ×ÔÖØÙÐ×Ú×ÔÒÓÒÔÙØ×Ù×ØØÙÖ ÖÐÖÓØØÓÒ×ØÕÙÐÓÒÕÙ <br />
×ØÒØÐÑÓÑÒØÒØÕÙØÓØÐÕÙ×ØÓÒ×ÖÚ <br />
JÓÙÐÖÐÒÖØÙÖÐÖÓØØÓÒ ÓψÓÒØÒØÒÔÐÙ×ÐÒÓÖÑØÓÒ×ÙÖÐ×ÔÒÐÔÖØÙÐØJ =<br />
ÊÑÖÕÙÙÔÓÒÚÖÖÙÒÙØÖ×ÓÖØ×ÝÑØÖØÒÚÖÒ ÙÄÒÚÖÒÙÑÑÔÐÕÙÐÓÒ×ÖÚØÓÒÐÖÑ<br />
×ÓÒÖÖÒÚÖ×ÑÒØÙØÑÔ× ÆÓÙ×ÐÐÓÒ×ÑÒØÒÒØÓÒ×ÖÖÐ×××ÝÑØÖ××ÖØ×ÔÖØÓÒÙ ÄÔÖØ<br />
<br />
ÓÑÑÔÖÚÙ<br />
[Rn, H] = 0 ÕÙ×ØÕÙÚÐÒØ<br />
= H(x)ψ(x ′ ) = H(x)Rnψ(x)<br />
H(x) = H(x ′ <br />
)<br />
[L, H] = 0<br />
Rnψ(x) = (1 − iδθnJ · n)ψ(x) <br />
[J, H] = 0 <br />
L + S
ØÓÒ ÄØÖÒ×ÓÖÑØÓÒÔÖÔÖØÙÒ×Ý×ØÑÔÖØÙÐ××ØÒÔÖÐÓÔÖ<br />
ÓÒÙÑÖÓØÐ×ÔÖØÙÐ×ÁÐ×ØÙÒ×ÝÑØÖÔÖÖÔÔÓÖØÐÓÖÒ <br />
P : xi ↦→ −xi<br />
ÁÐ×ØÐÖÕÙ<br />
ÙÖÔÖÄÕÙÖÚØÙÖ(t, x)×ØÖÒ×ÓÖÑÓÒÒP(t, x) (1, −1, ÊÑÖÕÙÞÕÙÒÓÓÖÓÒÒ×ÔÓÐÖ×x=R sin<br />
P 2 <br />
È×ØÕÙÚÐÒØÙÒÖÜÓÒÒ×ÙÒÑÖÓÖÔÐÒ×ÙÚÙÒÖÓØØÓÒ Ð×ÐÑÒØ×ÙÖÓÙÔÔÖØ×ÓÒØÓÒÈØÈ2Á É×ÓÒÚÒÖÕÙÐÓÒÒÔÙØÔ×ÖÙÖÈÙÒÖÓØØÓÒÑÓÒØÖÖÕÙ ÉÕÙÐ×ØÐÓÑÔÓÖØÑÒØ×ÓÙ×PÐÕÙÒØØÑÓÙÚÑÒØpÙ<br />
=ÒØØ.<br />
ÓÒ×Ð×Ý×ØÑÓ×ÖÚ×ØÒÚÖÒØ×ÓÙ×Ð×ÖÓØØÓÒ×ÐØÙ×ÓÒÓÑÔÓÖ ÄÓÔÖØÓÒÈÕÙÚÙØÙÒÖÓØØÓÒÔÖ×ÒÖÐÖÓØØÐÙ p<br />
ÙÒÚÖ×ÐÐËÙÖØÖÖÐ×ØÐÖÕÙÐ×ÓÖÒ×Ñ×ÚÚÒØ×ÓÒØØÙÙÒ ØÑÒØ×ÓÙ×È×ØÕÙÚÐÒØÐØÙ×ÓÒÓÑÔÓÖØÑÒØ×ÓÙ×ÙÒÖÜÓÒ<br />
Ò××ÒÐÚÈÖÜÑÔÐÐÖ×ÙÖÐ×ÝÑØÖÔÓÙÖÖØ×ÜÔÐÕÙÖÔÖ ÓÜØÓÙØÓ×ÐÔÓÙÖÖØØÖÙÜÓÒØÓÒ×ÒØÐ×ÔÖ×ÒØ×ÐÓÖ×Ð ÇÒÔÙØ×ÑÒÖ×Ð×ØÒØÓÒÒØÖÐÖÓØØÐÙÙÒÚÐÙÖ<br />
ÐØÕÙÐ×ÔÖÑÖ×ÓÖÒ×Ñ×××ÓÒØÓÖÑ×ÔÖØÖ×ÑÓÐÙÐ×ÓÖÒØ× ÄÔÖÑÖÓÖÒ×ÑÕÙÐ×ÖØÜØÖÓÖÄÔÖÓÒØÙÖÒÔ×Ù ×ÓÙ×ÐØÙÑÔÑÒØÕÙØÖÖ×ØÖÓÙ×ÓÙ×ÐÒÙÒÐÖÓØØÓÒÐ ÓÜÌÓÙØÓ×ÓÒÔÙØÑÒÖÕÙÒÑÓÝÒÒÐÚÒ×ÐÍÒÚÖ××ØØÓÙØ ØÖÖ ØÑÓÖØÕÙÐÝÙØÒØÚÐ×ØÓÒ×ÕÙ××ÐÙÒØÒ××ÖÖÒØÐ ÇÒÔÙØÑÑÑÒÖÙÒ×ØÙØÓÒØÓØÐÑÒØ×ÝÑØÖÕÙÐÓÖÒ<br />
ÖÓØ ÑÒÓÙØÒØÙÐÓÙÔÒÓÙ ÙÕÙÚÐ×ØÓÒ×ÕÙ××ÖÖÒØÐ<br />
ÁÐ×ØÙÒ×ÝÑØÖÜØÒ×ÐÐÑØÐÔÖ×ÓÒÜÔÖÑÒØÐÔÓÙÖ Ð×ÒØÖØÓÒ×ÑØÓÖØÑ×ÕÙ×ØÚÓÐÔÖÐÒØÖØÓÒ×ÐÓÒ ÐÆØÙÖØÙÒÖÒÒØÖÐÖÓØØÐÙ <br />
z = R cos θÐØÖÒ×ÓÖÑØÓÒ×ØÖÙØÔÖR<br />
−1, −1)<br />
′<br />
≡ (t, −x) : P ≡<br />
θ cosφ y = R sin θ sin φ<br />
= R, θ ′ = π − θ φ ′ = π + φ<br />
pÙ×ÔÒS×ÑÔ×EØBÙØÑÔ× ÑÓÑÒØÒÙÐÖÓÖØÐL = r × ÙÒÕÙÖÚØÙÖÐÖÐØÖÕÙQÙÔÖÓÙØ×ÐÖS ·<br />
ÈÓÙÖÙÒ×Ý×ØÑÔÖØÙÐ×ÒÚÖÒØ×ÓÙ×ÐÔÖØÓÒ<br />
H({x ′<br />
i }) ≡ H(P {xi}) = H({xi})
ØÙÖ ÒÓÒ×Ð×ÙÒÔÖØÙÐÒÔÖÐÓÒØÓÒÓÒψÇÒÒØÖÓÙØÐÓÔÖ ÓÒ×ÖÓÒ×ÑÒØÒÒØÐ×ØÙØÓÒÓÐÔÖØ×ØÙÒÓÒÒ×ÝÑØÖÈÖ<br />
Ð×ÚÐÙÖ×PaÔÓ××Ð××ÓÒØ+1Ø−1ÇÒÔÔÐÐPaÐÔÖØÒØÖÒ×ÕÙ ÔÖÓÖÐÚÐÙÖPaÔÒÐÔÖØÙÐÓÒÒØÖÓÙØ×ÚÐÙÖ×ÒÜ×ÔÖ ÄÓÒØÓÒ ÑÔÐÕÙÕÙ<br />
ÉÑÓÒØÖÖÕÙÐÓÒØÓÒÓÒÙÒÔÖØÙÐÙÖÔÓ××ØÙÒÚØÙÖÔÖÓÔÖ ÐÔÖØÙÐÖÐÐÖØÖ×ÐÔÖØÙÐÙÖÔÓ×<br />
Pψ(x,<br />
ÅÓÒØÖÖÕÙ×ÐÔÖØÙÐÙÒÑÓÑÒØÓÖØÐÒÖØÖ×ÔÖÐÒÓÑÖ<br />
ÐÒÓÑÐÔÖØÙÐÒÕÙ×ØÓÒPγÈπ Pp<br />
ÕÙÒØÕÙÄ×ÓÒØÓÒÓÒ×ØÙ××ÙÒÚØÙÖÔÖÓÔÖÈÚÐÚÐÙÖ ÈÚÚÐÙÖÔÖÓÔÖÈa<br />
ÓÒÔÓÙÖÐ×ÔÖØÙÐ×ØÒ×ÙÒØØÑÓÑÒØÒÙÐÖÓÖØÐÄÓÒ ×Ø<br />
ÓØÒØ<br />
ÄÒÖÐ×ØÓÒÔÐÙ×ÙÖ×ÔÖØÙÐ×Òx1 x2<br />
ÕÙ ÈÓÙÖÙÒ×Ý×ØÑÖØÖ×ÔÖ×ÓÒÑÐØÓÒÒÀÐÒÚÖÒ×ÓÙ×ÈÑÔÐÕÙ<br />
Pψ(x1,<br />
ÑÑ×Ð×ÔÖØÙÐ×ÓÒ×ØØÙÒØ×Ý×ØÑÒØÖ××ÒØØ×ØÖÒ×ÓÖÑÒØÒ ÙØÖ×ÔÖØÙÐ×ØØÓÒÐÙ×ÓÒ×ØÚÖÔÓÙÖÐ×ÒØÖØÓÒ×ÓÖØØÑ Ð×Ý×ØÑ×ØÒÚÖÒØÙÓÙÖ×ÙØÑÔ×È×ØÙÒÓÒ×ØÒØÙÑÓÙÚÑÒØ ÄÓÒ×ÖÚØÓÒÐÔÖØ×ÒÕÙÐÔÖØÐÓÒØÓÒÓÒÕÙÖØ<br />
Ò×ØÔ×Ð×ÔÓÙÖÐÒØÖØÓÒÐ<br />
[H,<br />
Ä×ÖÙÑÒØ×ÕÙÓÒÔÔÐÕÙÙÜÒÖØÙÖ××ØÖÒ×ÓÖÑØÓÒ×ÓÒØ ÒÙ×Ò×ÓÒØÔÐÙ×ÚÐÐ×Ò×Ð×ÙÒØÖÒ×ÓÖÑØÓÒ×ÖØÌÓÙ ØÓ××È×ØÐÓÔÖØÙÖÔÖØÐÓØ×Ø×Ö(P) 2 IÓÒÔÖ<br />
= ÐÙÒØÖØP PP † = IÓÒÙØÕÙP P † ÚÐÙÖ×ÔÖÓÔÖ×Pa×ÓÒ×ÖØÓÒ××ÔÔÐÕÙÒØÙÜ×ÝÑØÖ×ÙØÝÔ ÓÔÖØÙÖÀÖÑØÕÙØÐÔÙØØÖ××ÑÐÙÒÓ×ÖÚÐÓÐ× Ñ×Ô×ÐÒÚÖ×ÓÒÙ ÕÙÐ×ØÙÒ<br />
<br />
ØÑÔ×T<br />
t) = Paψ(−x, t) <br />
ÔÖÓÔÖPa(−1) LPψnℓm(x, t) = Pa(−1) L <br />
ψnℓm(x, t)<br />
Pψ(x1, x2, ..., t) = P1P2...ψ(−x1, −x2, ...t)<br />
x2t) = P1P2(−1) L <br />
<br />
ψ(x1, x2, t)<br />
P] = 0<br />
U 2 = IÓÒÙ×ÓÒÖCÔÖØG<br />
=
×ÓÙ×P ÇÒÐ×ÒÓÑÒØÓÒ××ÙÚÒØ×ÒÓÒØÓÒÙÓÑÔÓÖØÑÒØÐÖÒÙÖ ËÐÖ È×ÙÓ×ÐÖ ÎØÙÖÔÓÐÖ È×ÙÓÚØÙÖÜÐ P(s)<br />
P(p)−p<br />
P(v)−v<br />
P(a) ÍÒÔÖØÙÐ×ÔÒ0×ØØ×ÐÖ××ÔÖØ×ØÔÓ×ØÚ(JÔÖØ= 0 ØÔ×ÙÓ×ÐÖ××ÔÖØ×ØÒØÚ0 −Ø<br />
Ô×ÙÓÚØÙÖÔ×ÙÓ×ÐÖÚØÙÖÜÐ→−Ô×ÙÓ×ÐÖÚØÙÖÜÐ ÑÑÔÓÙÖÙÒÚØÙÖÓÒ ÚØÙÖ×ÐÖÚØÙÖ →×ÐÖ−ÚØÙÖ<br />
c×ÐÓÒÓÒÒØÐ×ÑÓÑÒØ×ÒÙÐÖ×ÓÖØÙÜLa + bØℓa ÓØÚÓÖPaPb(−1) L = PaPbPc(−1) ℓ •ËÔÖÓÒØÖÐÔÖØÙÐ×ØØÓÙÓÙÖ×ÔÖÓÙØÒ××ÓØÓÒÚÙÒÔÖ ×ØÙÒ×ÔÖÚÐÔÓÙÖØÖÑÒÖÐÔÖØÙÒÔÖØÙÐ<br />
ÇÒÐÖÐÒÖÐ PdÔÓÙÖÖØÖØÖÑÒ<br />
ÕÙÓÒÒPc<br />
ØÙÐ×ÙÐÐÔÖØÖÐØÚPc ·<br />
s<br />
a<br />
+ )<br />
cÓP×ØÓÒ×ÖÚÓÒÓØÒØÐÔÖØ cÇÒ<br />
•Ò×ÐÔÖÓ××Ù×a + b → a + b +<br />
+ b +<br />
= (−1) L+ℓ<br />
ÔÓÙÖÐ×ÖÑÓÒ× ÔÓÙÖÐ×Ó×ÓÒ× Èparticule−Èantiparticule<br />
Èparticule Èantiparticule É×ψ×ØÙÒÓÙÐ×ÔÒÙÖÖÑÓÒØÖÖÕÙÈψ(r, t) = γ0ψ(−r, t) ÉÙÚÙØÐÓÙÖÒØÖJ µ = ψγ µ ψØÖÒ×ÓÖÑ×ÓÙ×ÐÓÔÖØÓÒÈØ<br />
A µ = ψγ µ γ5 ÈÖØ×ÐÔØÓÒ×<br />
ψ<br />
ÒØÖÑÓÒ ÕÙ×ÓÐÙØÓÒ×ÐÕÙØÓÒÖÇÒØÖÓÙÚÕÙÔÓÙÖÙÒÔÖÖÑÓÒ ÈÖØÙÐØÒØÔÖØÙÐÔÔÖ××ÒØÒ×ÙÒÑÑÓÙÐ×ÔÒÙÖÒØÒØ<br />
PfP<br />
<br />
<br />
f = −1
Ô×Ø×ÔÖÐÒØÖØÓÒÓÖØÁØÓÑÑÓÒÐÑÒØÓÒÒÐÒØÖØÓÒ ÈÓÙÖØ×ØÖÐÓÒÓØÖÖÓÙÖ×ÐÒØÖØÓÒÑ ÖÐ×ÐÔØÓÒ×Ò×ÓÒØ<br />
ÒØÖÒ×ÕÙ×Ù+ØÙ−ÒÓÙÒØ×ÙÖÙØÖ×ÖØÓÒ×ÖÓÒØÓÙÓÙÖ×ÙÒ<br />
γγÑÓÒØÖÕÙ×Ø<br />
ÔÖØÒØÖÒ×ÕÙ×ÐÔØÓÒ×Ò×ØÔ×ÖÖÒ×ÐØÐÈ ÚÐÐÔÓÙÖÐ×Ý×ØÑ+−ÙØÖÔÖØÓÒÒÔÙØÔ×ØÖÑÒÖÐ×ÔÖØ× ÐÏÁÚÓÐÐÔÖØÄØÙÐÒÒÐØÓÒÙÔÖÔÓ×ØÖÓÒÙÑ+Ø−<br />
ÒÓÒ×ÕÙÒÐ<br />
→<br />
ÑÐ×ÕÙÖ××ÓÒØÖ×ÔÖÔÖ×ÕÙÖÒØÕÙÖÓÒÓÒÜÐÔÖØ× ÇÒÐÑÑÔÖÓÐÑÕÙÔÓÙÖÐ×ÐÔØÓÒ×Ò×Ð×ÒØÖØÓÒ×ÓÖØØ ÈÖØ×ÕÙÖ× ÒÓÑÖÔÖÐÔØÓÒ×ÒÙ+− →+−+ γ →+ γ<br />
ÕÙÖ×ÔÓ×ØÚØÐÐ×ÒØÕÙÖ×ÒØÚÔÖÓÖÒÚÐ×ÔÖØ×× ÖÓÒ×ØÒØÖÓÒ× ÔÖ×Ð×ÖÐ×ÔÖÑÑÒØØÐ×ÙÒÑ×ÓÒÓÑÔÓ×ÙÒÕÙÖØ ÈÖØ×ÖÓÒ× ÙÒÒØÕÙÖÜπ + ÒÖØÕÙÄ Ñ×ÓÒ×Ô×ÙÓ×ÐÖ× ÚÄÐÒÓÑÖÕÙÒØÕÙÓÖØÐËÐÓÒÔÖÒ×Ñ×ÓÒ×ÙÔÐÙ××ÒÚÙ ÔÖØÙÐ×Ô×ÙÓ×ÐÖ×ÂP−Ä×ÔÓÒ×ØÐ×ÓÒ××ÓÒØ×ÜÑÔÐ× Ò×Ð××ÖÝÓÒ×ÐÔÖÓÐÑÙÑÓÑÒØÒÙÐÖÓÖØÐ×ØÙÒÔÙ ÓÒÔÖØÕÙÐÔÖØÒØÖÒ×ÕÙ×Ø−1ÁÐ×ØÓÒ<br />
ÔÐÙ×ÓÑÔÐÕÙØÖØÖÖÓÒØÖÓ×ÕÙÖ×ÓÙØÖÓ×ÒØÕÙÖ×ÆÒÑÓÒ×ÓÒ ÔÙØØÖØÖÐÑÒØÐ×L=0ÔÓÙÖÐÕÙÐÓÒÓØÒØÙÒÔÖØ(+1) 3 ÈÓÙÖÐÒØÖÝÓÒ(−1) 3 ÈÖØÙÔÓØÓÒ ÇÒÖØÐÑÔÑÔÓØÓÒÕÙÔÖÐÕÙÖÚØÙÖA =<br />
ÈÖØÙÔÓÒ ÓÒÓÒØØÖÙÙÔÓØÓÒÙÒÔÖØÒØÚÄÔÓØÓÒ×ØÙÒÚØÙÖ ÐEÔÖE= −∇V ÈÙ×ÕÙP(E)<br />
ÓÒ×ÖÓÒ×ØÓÙØÓÖÐÔÖØÙÔÓÒÖÇÒÙØÐ×ÐÖØÓÒ<br />
=<br />
<br />
Ð×ÚÙÒÑÓÑÒØÒÙÐÖÓÖØÐÄ +−<br />
J P = 1 −<br />
= ÙÒÔÖØÒØÖÒ×ÕÙ<br />
ud PÑ×ÓÒ= PqPq(−1)<br />
L = (−1) L+1 <br />
= +1<br />
= −1ÓÒÐÔÖÓØÓÒØÐÒÙØÖÓÒÓÒØÙÒÔÖØ+1<br />
(V, A) A×Ø<br />
− ∂A µ<br />
≡ −∂µA ∂t<br />
−EØP(∂t, ∇) = (∂t, −∇)ÓÒÓØÒØP(V, A) = (V, −A).
π− Ò Ò<br />
ÂÄ Ü ÓÒ×ÖÚØÓÒÙÂ<br />
ÐÓÖØËℓ ÄÔÓÒ×ÑØÒÓÖØÙØÓÙÖÙØÓÒÐ×ØÔÖÐ×ÙØÔØÙÖÔÙ× ÕÙÐÔÐÙ×ÖÒÖÓÙÚÖÑÒØÚÐÔÖÓØÓÒÙÙØÓÒÄ<br />
⇒<br />
ÔÖØÐØØÒØÐ×ØÓÒPπPd(−1) ℓ PπPdÄÙØÓÒ×ØÓÖÑÙÒ ×ØÖÚÙÒ<br />
= ÒÙØÖÓÒØÙÒÔÖÓØÓÒÐ×ÔÖÒÔÐÑÒØÒ×ÐØØ3 S1 ×ÔÒËØÙÒÑÓÑÒØÒÙÐÖÓÖØÐÄ×ÔÖØÚÙØ(+1)(+1)(−1) L +1ÄØØÒØÐÐÖØÓÒ×ØÓÒÖØÖ×ÔÖÙÒÔÖØÐÐÐ ÙÔÓÒ ÐØØÒÐÐÖØÓÒÓÒÔÙØÓÖÑÖ×ÓÑÒ×ÓÒ××ÔÒÒØ×ÝÑ ÎÓÝÓÒ×ÓÑÑÒØØØÖÙÖÐ×ÑÓÑÒØ×ÒÙÐÖ×ÚÐ×ÙÜÒÙØÖÓÒ×<br />
1ÙØÝÔ|↑↑〉 ØÖÕÙS= 0ÙØÝÔ|↑↓〉Ø×ÝÑØÖÕÙS= <br />
×ÒÐØØÒØ×ÝÑØÖÕÙØÒ×ÕÙØÒÐ××Ð×ØØ××ÝÑØÖÕÙ× ÒÚÖÒØ× ËÐ×ÙÜÒÙØÖÓÒ××ÓÒØÒ×ÐØØ×ÔÒÒØ×ÝÑØÖÕÙÙØÝÔ|↑↓〉ÓÒ ÇÒÚÓØÕÙÐÒ×ÔÖØÙÐ×↔×ØÕÙÚÐÒØÙÒÒÑÒØ<br />
ËiØÜËÐ××ÓÒØÒ×ÐØØ×ÔÒ×ÝÑØÖÕÙÙØÝÔ|↑↑〉 ËiØ ËÐÔÖØ×ÔÒÓÖÐÐÐÓÒØÓÒÓÒ×ØÒØ×ÝÑØÖÕÙÐÔÖØ×ÔØÐ ÜÔÙØÔÖÒÖÐ×ÚÐÙÖ× ÓØØÖ×ÝÑØÖÕÙØÚØÚÖ× ÇÖÐÒÙØÖÓÒ×ØÙÒÖÑÓÒÐÓÒØÓÒÓÒ<br />
Ä×ÙÐÔÓ××ÐØÕÙ×Ø××××ÑÙÐØÒÑÒØÐÓÒ×ÖÚØÓÒJØÐ Ù×Ý×ØÑ×ÙÜÒÙØÖÓÒ×ÓØØÖÒØ×ÝÑØÖÕÙψ(n1, n2)<br />
×ØØ×ØÕÙÖÑÖ×Ø Si ÒÓÒÐÙ×ÓÒÐÔÖØÐØØÒÐÐÖØÓÒ×ØÓÒÒÔÖPnPn(−1) 1 −1ÄÓÒ×ÖÚØÓÒÐÔÖØÒ×ÐÒØÖØÓÒÓÖØÑÔÓ×ÓÒÙÒÔÖØ<br />
<br />
ÒØÖÒ×ÕÙÙÔÓÒÖÐ−1 ÖÔÔÐÐÒÓØØÓÒ×ÔØÖÓ×ÓÔÕÙ2S+1 LJ<br />
ËËi<br />
→<br />
|0, 0〉 = 1 <br />
√ 1 1<br />
, 1<br />
, −1<br />
2 2 1 2 2 2<br />
2<br />
− <br />
1<br />
, −1 1 1<br />
, 2 2 1 2 2 2<br />
|1, +1〉 = <br />
1 1 , 1 1 , 2 2 1 2 2 2<br />
|1, 0〉 = 1 <br />
√ 1 1 , 1,<br />
−1<br />
2 2 1 2 2 2<br />
2<br />
+ <br />
1,<br />
−1 1 1 , 2 2 1 2 2 2<br />
|1, −1〉 = <br />
1<br />
, −1 1<br />
, −1<br />
2<br />
2<br />
1<br />
2<br />
2<br />
2<br />
= 1 x = 1ØJ = 1<br />
=<br />
= −ψ(n2, n1)<br />
=
ËiÖÕÙ×ÔÖ ÖÕÙ×ÔÖ<br />
ÄØÙÐ×ÒØÖØÓÒπ 0 ÔÓÒÒÙØÖ×ØÙ××ÒØÚÄ×ØØ×ÖÙÔÓÒÓÖÑÒØÓÒÙÒØÖÔÐØ<br />
γγÑÓÒØÖÕÙÐÔÖØÒØÖÒ×ÕÙÙ<br />
ÎÓÐØÓÒÐÔÖØ Ä×ÔÝ×Ò×ÓÒØÓÑÑÒ×ÒØÖ××Ö×ÙØÔÖØÖÐÒÒ<br />
→<br />
ÇÒÚØÒØÐÔÓÕÙÙÜÔÖØÙÐ×Ò×ØÐ×Ñ×××ØÙÖ ÐÔØÓÒτØÙÐÇÒÚØÙ××ÖÓÒÒÙÕÙÐÔÖØÙÐθ××ÒØÖÒÔÓÒ× Ð×ÝÓÒØØÑÒ×ÔÖÐÖÖÐ×ÓÐÙØÓÒÙÑÙÜÔÙÞÞÐθτ<br />
ÐÔÖØÙÐτÒÔÓÒ×ÄÒÐÝ×Ò×ÔÒÔÖØ×ÔÖÓ××Ù××ÒØÖØÓÒ ÙÜØØÖÓ×ÓÖÔ×ÚØÑÒÙÜÖ×ÙÐØØ××ÙÚÒØ×Ò×Ð×ÒØÖØÓÒ ØØÖÒÖÒÖÒÚÓÖÚÐ ÚÚÓ×Ò×ÕÙÓÒÚØÔÔÐ×θØτ<br />
Ùθ +<br />
Ü<br />
θ<br />
S Sθ +<br />
L 0<br />
ÖÑÖ ÓÒ×ÖÚØÓÒÂ<br />
x = 0, 2, 4, ... x = 1<br />
x = 1, 3, 5, ... x = 0, 1, 2<br />
JP = 0−ÔÖØÙÐ×Ô×ÙÓ×ÐÖ× + → π + π 0<br />
J Sθ + ⇒ Ëθ + ÓÒ×ÖÚØÓÒÙJ ÓÜ=Äππ =Âππ =Ëθ +<br />
Èππ = P π+ P π0<br />
2 (−1)Äππ = (−1) (−1)Äππ = (−1)Äππ ÒÓÒØÓÒÐÚÐÙÖËτ + Ò×Ð×ÒØÖØÓÒÙτ + ÁÐØØÓÑÑÓÔÓÙÖÐÒÐÝ×ÓÑÔÓ×ÖÐÑÓÑÒØÒÙÐÖÓÖØÐ ÖØÖ×ÒØÐÑÓÙÚÑÒØÖÐØÙπ −ÔÖÖÔÔÓÖØÙ×Ý×ØÑπ + π +ÄÔÓÒ<br />
ÄÔÖØØØ×ÙÔÔÓ×ØÖÓÒ×ÖÚÒ×ÐÔÖÓ××Ù××ÒØÖØÓÒ<br />
ÒÝÒØÔ××ÔÒÓÒ|<br />
<br />
L − ℓ |≤ Jπππ ≤| L + ℓ |<br />
ÄÔÖØθ +ÔÓÙÚØÓÒØÖÖØÖ×ÔÖÐ×ÕÙÒJ Pθ ++ − +<br />
ÒÐÒÙÜØÖÑ×ÄÖØÖ×ÒØÐÑÓÙÚÑÒØÖÐØ×ÙÜπ +Øℓ<br />
Ø ±−8× ÒÙÒØÑ××ÐØÖÓÒÕÙ ± ر ±
ℓ<br />
τ + → π + π + π− Ä S Sτ +<br />
L<br />
J Sτ + ⇒ Ëτ + ÄÔÖØÐØØÒÐ×ØÓÒÒÔÖ<br />
ÓÒ×ÖÚØÓÒÙJ<br />
Pπππ = Pπ +Pπ +Pπ −(−1)L (−1) ℓ = (−1) 3 (−1) L+ℓ<br />
ÓØØÖÔÖ ÒØÕÙ×ÚÒØ×Ø×ÖÐ×ØØ×ØÕÙÓ×Ò×ØÒÐÙÖÓÒØÓÒÓÒ ÓÙØÓÒ×ÕÙÄÒÔÙØÔÖÒÖÕÙ×ÚÐÙÖ×ÔÖ×ÖÐ×ØÙÜÓ×ÓÒ× ÇÒÔÓÙÚØÓÒ××ÒÖÐ×ÚÐÙÖ××ÔÒÔÖØ×ÙÚÒØ×ÐÔÖØÙÐτ + ÒÓÒØÓÒ×ÚÐÙÖ×ℓØÄÚÓÖÙÖ<br />
π<br />
+<br />
0 0<br />
L<br />
+<br />
1 0 1<br />
−<br />
2 0 2<br />
−<br />
0 2 2<br />
+ + +<br />
π +<br />
1 2 1 2 3<br />
− − − − −<br />
2 2 0 1 2 3 4<br />
ÍÒÒÐÝ××ÖØÖ×ØÕÙ×ÒÑØÕÙ×Ð×ÒØÖØÓÒÒ ÒØÓÒℓØÄÔÓÙÖÐ×Ý×ØÑØÖÓ×ÔÓÒ×<br />
π −<br />
ÓÖÔ× ÐÔÖØÙÐτ +ØÔÖÐØÞÚØÑÓÒØÖÕÙÐ××ÒØÓÒJ Pτ + = 0− ×ÔÒÔÖØØÔÓÙÖÐÔÖØÙÐθÆÓØÓÒ×ÕÙÐ×ÓÖ×Ù××Ø×ÐÓÒ ØØÒØØÑÒØÚÓÖ×ØØÔÖØÓÒØØÒÓÑÔØÐÚÐÔÖØÓÒ ÔÖÒÐ×ÔÖÑÖ×ØØ×ÜØØÓÒÓÖØÐÙ×Ý×ØÑ×ØÖÓ×ÔÓÒ× ×ÔÖØÙÐ××ØÒØ××ÓØÐ×ØÐÑÑÔÖØÙÐØÐÙÒ×ÔÖÓ××Ù× ×ÒØÖØÓÒÚÓÐÐÔÖØ ÊÀÐØÞÈÐÅ<br />
×Ö×ÙÐØØ×ÚÒØÓÒÙØÙÜÓÒÐÙ×ÓÒ××ÙÚÒØ××ÓØÐθØÐτ×ÓÒØ<br />
ÇÒ×ØÙÓÙÖÙÕÙÐ×ØÒÐÑÑÔÖØÙÐÕÙÐÓÒ×Ò×ÓÙ×ÐÒÓÑ <br />
ÓÒ <br />
L<br />
J P<br />
0 −
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ÙÓ×ÓÒØÒÚÖ××ÓÒÖÔÖ×ÒØÐÚØÙÖÔÓÐÖ×ØÓÒÐÑÒÖÙÒØÖ ÑÖÓÖÔÐÒÚÓÖÙÖ Ò×ÐÑÓÒÒÔÖÐÑÖÓÖÐÓÙÖÒØÒ×Ð×ÓÒ×ØÐÔÓÐÖ×ØÓÒ ÊÔÔÐÓÒ×ÕÙÈ×ØÕÙÚÐÒØÙÒÖÜÓÒ ÇÒÚÓØÕÙÐÒÚÖÒ×ÓÙ×ÈÒÔÙØØÖ×Ø×ØÕÙ×< JCo<br />
ÑÓÒØÖÕÙÐÓÒÙÖØÓÒÙ×ØÔÐÙ×ÔÖÓÐÕÙÐÐÖÓØ ÓÙÓÒÈÖÓÒØÖÐÖØÓÒÑ××ÓÒ×−×ØÓÒ×ÖÚÄÜÔÖÒ<br />
ÓÐ×ÙÜÐÔØÓÒ××ÓÒØÑ×Ó×Ó×ÈÙ×ÕÙÐÒØÒÙØÖÒÓ×ØÜÐÙ×ÚÑÒØ ØÓÒÒÒÔ×ÐÖ×ÙÐØØÐ×Ù××ÓÒ ÂCoØÐ60Æ∗ÙÒ×ÔÒÂNiÓÒ×ÖÓÒ×ÚÓÖÙÖ ÌÄÆÒÈÝ×ÊÚ<br />
ÄÒØÖÔÖØØÓÒÑÖÓ×ÓÔÕÙÙÔÖÓ××Ù××ØÐ×ÙÚÒØÐ60ÓÙÒ×ÔÒ<br />
Ð×ÜØÑ ·p ÐÄÖÓØØÓÒ×Ù×ÕÙÒØ×◦ÒØÔ×ÐÚÐÙÖÙÔÖÓÙØJCo<br />
ËÏÙÑÐÖÊÀÝÛÖÀÓÔÔ×ÊÀÙ×ÓÒÈÝ×ÊÚ <br />
ÏÙØÐØÙÒØÐ×ÒØÖØÓÒØÏÁÙÓÐØ<br />
60 Co → 60 Ni ∗ + e − + νe<br />
ÐÓÔÖØÙÖÔÖØÔÖÓÙØ×ÐÖÓÒÓØÒØ<br />
P(JCo · p e) = −JCo · p e<br />
(JCo · p e×ØÙÒÔ×ÙÓ×ÐÖ<br />
P(< JCo · p e >) = − < JCo · p e ><br />
×ØÓÒÒÓÒÒÙÐÐØÔÐÙ×ÒØÚÖ×ÙÐØØÔÔÓÖØÐ<br />
· p e >= 0<br />
0ÐÔÖØ×ØÓÒÚÓÐÒ×ÐÔÖÓ××Ù××ÒØÖØÓÒ<br />
< JCo · pe > <<br />
e
i<br />
i<br />
e<br />
JCo<br />
ÖÓØÖÐØ ÊÔÖ×ÒØØÓÒ×ÑØÕÙÐÜÔÖÒÏÙØÐ<br />
ÓÖØÖÙÖÐØ−1ØØÖÑ×ÒÖØÓÒÓÔÔÓ×Ù×ÔÒÙ ÓÒÓÑÔÖÒÕÙÒ×ØØÓÒÙÖØÓÒÐÐØÖÓÒ×ÓØ<br />
Miroir<br />
ÜÑÔÐÒ×ÐÍÒÚÖ×ÓÒØÖÓÙÚ ÓÓÒ××ÙÖÖÐÓÒ×ÖÚØÓÒÙÑÓÑÒØÒÙÐÖ ÐÓÔÔÓ××ØÚÖÔÓÙÖÐ×ÒØÒÙØÖÒÓ× ÇÒÔÙØÖÑÖÕÙÖÕÙÐÚÓÐØÓÒÓ×ÖÚÐÔÖØ×ØÑÜÑÐÈÖ<br />
ÔÖÐÒØÖØÓÒÐÔÖÜÑÔÐÒ×Ð×ÒØÖØÓÒÑÙÓÒ×ÔÓÐÖ×× ÄÚÓÐØÓÒÐÔÖØØÓ×ÖÚÔÖÐ×ÙØÒ×ÙØÖ×ÔÖÓ××Ù×Ö× νÙÖ×Ø0%νÖÓØÖ×<br />
ÕÙÐ××ÓÒØÒÚ×Ð× Ñ×ÕÙ×ÖÒÖ××ÓÒØ×ØÖÐ× ØÝÔÖÓÒ×ÔÓÐÖ××<br />
×ÐÖØÐÈÝ×ÊÚ ÊÄÖÛÒØÐÈÝ×ÊÚ ÍÒÙØÖÔÓÒØÚÙ×ØÕÙÐÜ×ØÙÒÒÓÑÖÐÒÙØÖÒÓ×ÙÖ×ØÖÓØÖ× ÕÙÐ×ÒÓÙÔÐÒØÚÙÙÒÙØÖÔÖØÙÐÓÒ ØËÖÛÓÖØÐÈÝ×ÊÚ <br />
<br />
JCo<br />
e<br />
i<br />
i
z<br />
J z = 5<br />
J z = 4<br />
J z = 1<br />
e<br />
ÇÒÖÔÖÒÖ×ÙØÔÐÙ×ÒØÐÙÔØÖÓÒ×ÖÐÒØÖØÓÒ ×ÒØÖØÓÒÙ60ÓÓÒÙÖØÓÒÚÓÖ×<br />
60<br />
60<br />
Co<br />
Ni *<br />
Ð ÔÐÐ×ÔÖØÙÐ×ÙÒ×Ý×ØÑÔÖÐÙÖ×ÒØÔÖØÙÐ××Ò×ÐØÖÖÐ×ÙØÖ× ÄÓÒÙ×ÓÒÖCÓÔÖØÙÖÕÙÒØÕÙC×ØÐÓÔÖØÓÒÕÙÖÑ ÄÓÒÙ×ÓÒÖ<br />
Ð×Ö×ØÐ×ÑÓÑÒØ×ÑÒØÕÙ××ÓÒØÒÚÖ××ÓÒÐÐÒÒÖØÕÙ<br />
p)×ÔÒÐØ ÈÖØØÓÔÖØÓÒØÓÙØ× ÖØÖ×ØÕÙ×ÕÙÖÚØÙÖ(E,<br />
××ÓÐÒØÖØÓÒÑÒ×ÙØÔ×ÒÑÒØ<br />
[Hem, C] = 0 <br />
×ØÙ××ÙÒ×ÝÑØÖÐÁÓÒ<br />
[Hem + HIF, C] = 0 <br />
ÈÖÓÒØÖÐÀÑÐØÓÒÒÐÒØÖØÓÒÐÒ×ØÔ×ÒÚÖÒØ×ÓÙ×<br />
[HWI, C] = 0 <br />
<br />
νe
ÇÒÚ×ÐÑØÖÔÓÙÖÐÑÓÑÒØ<br />
ÁÐÙØ×ØÒÙÖÙÜÐ×××ÔÖØÙÐ× H = Hem<br />
a<br />
+ HIF<br />
ÓÒÔÓÙÖÐ×ÕÙÐÐ×=<br />
<br />
Ð×ÔÖØÙÐ×ÕÙ×ÓÒØÖÒØ×ÐÙÖ×ÒØÔÖØÙÐ×ÔÒπ + , K + Ð×ÔÖØÙÐ×ÕÙ×ÓÒØÒØÕÙ×ÐÙÖ×ÒØÔÖØÙÐ×α=γ, π0 ÉØÙÖÐ×ÙÒÙØÖÓÒÒØÖÑ××ØÖÙØÙÖÕÙÖ×ÁÑÔÓÙÖÐ , η<br />
×Ý×ØÑ×ÃÒÙØÖ×<br />
ÐÑÒØÖ ÕÙ×ØÒ×ÒÔÖÕÙÔÖÓÙÚÕÙÐÒ×ØÔ×ÙÒÓÒ×ØØÙÒØ ÒÕÙÐÒÙØÖÓÒØÙÒÖÒÙÐÐÐÙÒÑÓÑÒØÑÒØÕÙÒÓÒÒÙÐ<br />
Ò×ÒÕÙÒØØÑÓÙÚÑÒØ×ÔÒ ψ〉Ð×ÔÒ<br />
ÚØØÒÓØØÓÒÓÒÔÓÙÖÐ×ÙÜÐ×××ÔÖØÙÐ×××Ù×<br />
ÆÓÙ×Ò××ÓÒ×ÐÓÒØÓÒÓÒÔÜÙÒÔÖÓØÓÒÔÖ|p, ØÒØÓÒØÒÙ×Ò×ÐÓÒØÓÒψ<br />
Ò×ÐÔÖÑÖ×ÓÒÒÔ×ØØÔÖÓÔÖÒ×Ð×ÓÒÓÒÙÒØØÔÖÓÔÖ ÚÐÚÐÙÖÔÖÓÔÖCαÄØÙÖÔ×Cα×Ø×ÑÐÖÐÙÕÙÐÓÒ ÖÒÓÒØÖÚÐÓÔÖØÙÖPÔÙ×ÕÙC 2ÓÒÓØÒØCα Ô××ØÖØÖÖÖØÓÙØÓÒÒÓÒÑ×ÙÖÐÓÒÖÒÓÒØÖÐ×ÙÜ ÔÖÓ×ØÙÖÐÔÖØCÒ×Ð××ÔÖØÙÐ×ØÝÔÐØÙÖ<br />
±1ÇÒÔÔÐÐ<br />
ÈÓÙÖÙÒ×Ý×ØÑÔÖØÙÐ×<br />
=<br />
ÍÒ×Ý×ØÑÓÑÔÓ×ÙÒÔÖØÙÐØ×ÓÒÒØÔÖØÙÐÑÑØÝÔ×Ø<br />
= ÓÒÚÒØÓÒ×Ca<br />
ÙÒØØÔÖÓÔÖÖÒÔÖØÕÙÐÓÔÖØÙÖØÙÐÒ×ÙÜ ÔÖØÙÐ×<br />
<br />
C|a,<br />
ÍÒ×Ý×ØÑÔÓÒÒÙÐÓÒ×ÖÖØÔÜÔÖ<br />
|π + , ψ1; p, ψ2〉 ≡ |π + , ψ1〉|p, ψ2〉 etc... <br />
C|a, ψ〉 = η|a, ψ〉 Ø<br />
C|α,<br />
ψ〉 = Cα|α, ψ〉 <br />
<br />
±1<br />
C|a1, ψ1; a2, ψ2; ...; an, ψn; αn+1, ψn+1; ...; αm+n, ψm+n〉 =<br />
Cαn+1...Cαn+m|a1, ψ1; a2, ψ2; ...; an, ψn; αn+1, ψn+1; ...; αm+n, ψm+n〉<br />
<br />
ψ1; a, ψ2〉 = |a, ψ1; a, ψ2〉 = ±|a, ψ1; a, ψ2〉
Ð×Ò±ÔÒÙÖØÖ×ÝÑØÖÕÙÓÙÒØ×ÝÑØÖÕÙÐØØ ×Ý×ØÑÐÓÖ×ÐÒØaÈÖÜÑÔÐÔÓÙÖÐ×Ý×ØÑπ + ÙÔÓÒØÚÙÐÓ×ÖÚØÙÖÐÓÔÖØÓÒÓÒÙ×ÓÒÖÖÚÒØ<br />
, π− :<br />
C|π + π− ; L〉 = (−1) L |π + π− <br />
; L〉<br />
π π<br />
r r<br />
1 π 1 π<br />
ÌÖÒ×ÓÖÑØÓÒÔÖÙ×Ý×ØÑÙÜÔÓÒ×<br />
C<br />
r2 r2<br />
ÓØÒØÙÒ×Ý×ØÑÕÙÚÐÒØÙÔÖÒØÒ×ÐÕÙÐÐÔÓ×ØÓÒÖÐØÚ× ÒÖÐÔÓ×ØÓÒ×ÙÜÔÖØÙÐ×Ë×ØÙÒ×ÝÑØÖÙ×Ý×ØÑÓÒ<br />
ÑÔÖ<br />
r2ÚÒØ−RÕÙ×ÖÔÖÙØ<br />
ψ(−R)ÓÑÑ ÙÜÔÖØÙÐ×Ò×ÒR<br />
ÊÔØØÙÚÒØÚÐ×ÙÜ×ÔÒ×<br />
=<br />
ÓÒÔÙØÓÖÑÖÐ×ÓÑÒ×ÓÒ××ÔÒ<br />
r1 − ×ÙÖÐÔÖØ×ÔØÐÐÓÒØÓÒÓÒC(ψ(R))<br />
1)×ÙÚÒØ×<br />
= ×ÙØØØÔÖØ×ÔØÐ×Ø×ÝÑØÖÕÙÔÓÙÖLÔÖÒØ×ÝÑØÖÕÙÔÓÙÖL ÓÒ×ÖÓÒ×Ð×Ù×Ý×ØÑÖÑÓÒÒØÖÑÓÒff ÒØ×ÝÑØÖÕÙ(S = 0)Ø×ÝÑØÖÕÙ(S =<br />
|0, 0〉 = 1 <br />
√ 1 1 , 1,<br />
−1<br />
2 2 1 2 2 2<br />
2<br />
− <br />
1,<br />
−1 1 1 , 2 2 1 2 2 2<br />
|1, +1〉 = <br />
1 1 , 1 1 , 2 2 1 2 2 2<br />
|1, 0〉 = 1 <br />
√ 1 1<br />
, 1<br />
, −1<br />
2 2 1 2 2 2<br />
2<br />
+ <br />
1<br />
, −1 1 1<br />
, 2 2 1 2 2 2<br />
|1, −1〉 = ËÓÙ×ÐÓÔÖØÓÒÔÖØÐÔÖØ×ÔÒÓÖÐÐÐÓÒØÓÒÓÒÑÒ<br />
LØÐÔÖØ<br />
<br />
1,<br />
−1 1,<br />
−1<br />
2 2 1 2 2 2 ÙÒØÙÖÑÙÐØÔÐØ(−1) S+1ÐÔÖØ×ÔØÐÙÒØÙÖ(−1)
ÒØÖÒ×ÕÙÚÓÖÔØÖ ÖÑÓÒÒØÖÑÓÒ ÙÒØÙÖ−1ÓÒÙØÓØÐÔÓÙÖÐ×Ý×ØÑ<br />
C <br />
S+L<br />
f, f, J, L, S = (−1) <br />
ÇÒÔÙØ×Ò×ÔÖÖÐÔÖÓÙÖÙØÐ×ÔÓÙÖÐÔÖØÈËÓÙ×ÐÔÓØÒØÐ ÄÔÖØÙÔÓØÓÒ<br />
<br />
f, f, J, L, S<br />
×Ò ÄÑÔEØÐÔÓØÒØÐ×ÐÖVÒÒØ×Ò×ÓÙ×CÖØÓÙØ×Ð× ÓÒ<br />
<br />
Ö××ÓÒØÒÚÖ××E= −∇V<br />
Cγ ÄÔÖØÙπ 0<br />
ÓÒÖÑÜÔÖÑÒØÐÑÒØÔÖÐ×ÒØÖØÓÒÓ×ÖÚÒÙÜÔÓØÓÒ× Ò×ÐÑÓÐ×ÕÙÖ×ÐÔÓÒÒÙØÖ×ØÙÒØØ1Ë0Ù×Ý×ØÑ1 √2<br />
uu + ddÇÒÐÙÔÖØÓÒÙÒÔÖØπ π 0 ÁÐ×ØÙÒ×ÒØÖØÓÒÑÕÙÓÒ×ÖÚÓÒÔÙØÓÒÖÖ <br />
→ γγ<br />
Cπ0 = CγCγ ÐÙÖ ÔÖÓ××Ù××ØÒØÖÔÖØÐÙÖÑÑÒÒÐØÓÒØÖÒÙÐÖ ËÙÖÐ×ØÖØÔÐÒÙÓÙÔÐÑÐ×ÒØÖØÓÒÒÔÓØÓÒ× <br />
= 1<br />
×ÖÒÓÑÔØÐÔÙ××ÒÖØÖ×ÐØÓÒ ØÙÖÙÑÓÒ× ÜÔÖÑÒØÐÑÒØÓÒØÖÓÙÚÕÙÐÚÓÒ ÎÓÖÔÜÃÓØØÖÒÎÏ××ÓÔÓÒÔØ×ÓÈÖØÐÈÝ××ÚÓÐ −8ÕÙ×ØÙÒÓÒ×ÕÙÒÐÓÒ×ÖÚØÓÒÇÒ ÔÓØÓÒ××Ø×ÙÔÔÖÑÔÖÙÒ<br />
ÍÒÈÖ××ÔÒÓØ<br />
ÇÜÓÖ<br />
ÚØÙÖ×ØÖÒ×ÓÖÑÓÑÑ <br />
C(A(t, x)) = CγA(t, x)<br />
− ∂A µÓÒØÖÕÙAÒÙ××<br />
<br />
≡ ∂µA ∂t<br />
= −1. = (−1)L+S = (−1) 0+0 1Ð×Ø =<br />
0<br />
ÚÖØ×ÑÒØÖÒ×ÐÔÖÓÔÓÖØÓÒ<br />
Γ(π 0 → γγγ)<br />
(Γπ 0 → γγ) ≃Ç(αem) ≈ 1<br />
137 ≈ 1%
ËÑ×ÒØÖØÓÒÙπ 0<br />
ÈÖØÙη Äη×ØÙÒÔÖØÙÐÔ×ÙÓ×ÐÖÓÑÑÐπ 0ÇÒÐ×ÑÓ××Ò ØÖØÓÒ<br />
×ØÑÔ×ØÝÔÕÙÐÒØÖØÓÒÑÄ×ÖÔÔÓÖØ×ÑÖÒÑÒØ×ÓÒØ×<br />
η<br />
ÒÚÖÒ×ÓÙ×ÐÒØÖØÓÒÑË×ØÙÒÓÒÒ×ÝÑØÖÐØØÒÐ ÑÐÖ×ÓÒÐ×ØÖÓ×ÔÖÓ××Ù××ÓÒØÒØÙÖÑÄ×ÙÜÔÖÑÖ×ÚÓ× ÓÒÒÒØÙÒη ×Ò×ÑÙØÇÒÙØÐ×ÐÖÒÖÚÓÔÓÙÖÙÒØ×Ø ÄØÑÔ×Ú×ØØÐÈτ =<br />
ÕÙ×ØÓÒÖÑÜÔÖÑÒØÐÑÒØÙÒÚÙ ÒÓÒ×ÕÙÒÐ××ÔØÖ××ÙÜÔÓÒ×Ö×ÓÚÒØØÖÒØÕÙ×<br />
−3<br />
→ γ + γ Br = 0.39<br />
η → π0 + π0 + π0 Br = 0.32<br />
η → π0 + π + + π− <br />
Br = 0.24 <br />
Γ = 6.6 10−22 /1.2 10−3 = 5.5 10−19 π 0 (p) + π + (p1) + π − ÓØØÖÒØÕÙ×ÓÒÓÒÙÙ×ÓÙ× <br />
(p2)<br />
π 0 (p) + π − (p1) + π + <br />
(p2)
ÆÓÒÓÒ×ÖÚØÓÒÒ×ÐÒØÖØÓÒÐ ÒÔÖÐ×Ø×ÖØÑÒØÓ×ÖÚÐ×ÙÜÕÙÐ×ÐÐÓÒÒÐÙÈÖÒÓÒ×ÔÖ ÄÒÓÒÓÒ×ÖÚØÓÒÒ×ÐÒØÖØÓÒÐÔÙØØÖÑ×ÒÚ ÜÑÔÐÐ×ÔÖÓ××Ù××ÒØÖØÓÒÐπ ± ×ÔÖÓÔÖØ×ÙÒÙØÖÒÓØÐÓÒ×ÖÚØÓÒÙÑÓÑÒØÒÙÐÖе +Ø Ðµ −ÓÒØ×ÐØ×Ø×ÔÓÐÖ×ØÓÒ×ÓÔÔÓ××ÁÑÒÓÒ×ÙÒÜÔÖÒ ÖÐ×Ò×ÙÒ×ÙÑÜØπ ±ÚÙÒÔÔÖÐÐÔÐ×ÐØÓÒÒÖ Ð×ÑÙÓÒ×Ò×ÙÒØØÐØÔÓÐÖ×ØÓÒÓÒÒÄØÙÜÓÑÔØ ÐØØÒÐ××ÒØÖØÓÒ×××Ù× ÓØÒÙ×ÖÒÓÒÒÙÐÒ×ÐÙÒ×ÚÓ×ØÒÙÐÒ×ÐÙØÖÄÚÓÐØÓÒ<br />
ÉÑÓÒØÖÖÕÙ×ÐÓÒØ×ÙÚÖÈÓÒÖ×ØÙÖÐ×ÝÑØÖÙ×Ý×ØÑ ÑÒÓÒ××ØÙØÓÒ×ÒÓÒÕÙÚÐÒØ×ÒÕÙÓÒÖÒÐ×ÔÖØÙÐ×<br />
ØÈ<br />
<br />
ÒÚÖ×ÖÐÙØÑÔ×ÓÒÚÖÖØ××ÒØÐÐÑÒØÐÑÑÔÝ×ÕÙØÐ ÄÒÚÖÒÔÖÖÒÚÖ×ÑÒØÙØÑÔ×ÓÙÐÐÕÙ×ÐÓÒÔÓÙÚØ ÄÖÒÚÖ×ÑÒØÙØÑÔ×<br />
×ÓØ ν,<br />
×Ý×ØÑÔÓÙÖÐÕÙÐ<br />
×ÖØÒ×ÖÒÐÐÓÖÒÐÄÑÒÕÙÆÛØÓÒ×ØÒÚÖÒØÔÖÖÒ<br />
T<br />
ÓÒ×ÙÒÔÖØÙÐÔÖÓÙÖØÙÒØÖØÓÖr(t)ØØÑÑØÖØÓÖ×Ö ÙÒ×ÓÐÙØÓÒÔÓÙÖÐ×Ý×ØÑÙÑÓÙÚÑÒØÒÚÖ×r TØÔ××ÔÖÐ×ÑÑ× ÔÓÒØ×ÕÙr(t)Ñ××ØÑÔ×−tr T ÐÐ×ÔÜÐÓÖ×ØÙÒÓÒØÓÒÐÚØ××ÆØÙÖÐÐÑÒØØÓÙØÐÓØ ØÖÓÒ×ÖÙÒÚÙÑÖÓ×ÓÔÕÙÖÓÒ×ØÕÙÙÒ×Ý×ØÑÑÖÓ×ÓÔÕÙ<br />
ØÙÖÐÙÑÓÙÚÑÒØÒÖØÓÒÐÕÙÒØØÑÓÙÚÑÒØp×Ø ÚÓÐÙÚÖ×ÙÒÓÒØÓÒÔÐÙ×ÓØÕÙ ÑÒÙÒ×Ý×ØÑÝÒÑÕÙÑÒØÕÙÚÐÒØÐÓÖÒÐÔÓÙÖÐÕÙÐØÓÙØÚ ÒÒ−pÐÑÓÑÒØÒÙÐÖJÒ−JÐÓÙÖÒØÑÓÙÙØÖjÒ ËÐÖÒÚÖ×ÑÒØÙØÑÔ××ØÙÒ×ÝÑØÖÙ×Ý×ØÑ×ÓÒÔÔÐØÓÒ<br />
−jØ ×ÓÒØÒ× ÁÐÙØÓÙØÖÕÙÐÓÖ×ÙÒÒØÖØÓÒÐØØÒØÐØÐØØÒÐ ÆÔÖÐ×ÙØÓÒÙØÐ×ÖÐÒÓØØÓÒA T<br />
→ µ ± +νµ(νµ)ÒÓÒ×ÕÙÒ<br />
ÐØØÙÒÙØÖÒÓÙÖÉÙÚÐÒØ 1 λ = − ν, 1<br />
<br />
λ = − 2<br />
2<br />
ν, λ = −1 2<br />
ÚÖ×ÑÒØÙØÑÔ×ÖÐÐ×ÜÔÖÑÔÖ×ÕÙØÓÒ×Ù×ÓÒÖÒØ <br />
: (t, r) ↦→ (−t, r)<br />
m d2<br />
dt2r(t) = F (r(t)) <br />
r(−t)ØØ×ÝÑØÖÒ×ØÔ×Ú<br />
(t) =<br />
= T(A)
ÔÐÙ×ÓÑÔÐÕÙØÖØÖÕÙÐÙ××ÝÑØÖ×PØCÖÓÒÒÔ×ÕÙÒ<br />
TØØÒØÐ→ØØÒÐ ÄÔÖÓÐÑÐ×ÝÑØÖT×ØÓÒÔØÙÐÐÑÒØØÑØÑØÕÙÑÒØ ØTØØÒÐ→ØØÒØÐ<br />
ØØÓÒ×ÖÚÅØÑØÕÙÑÒØÐ×ÜÔÐÕÙÔÖÐØÕÙÐÓÒÒ×ØÔ× ÙÒÓÔÖØÙÖÐÒÖÖÑØÕÙÍÒ×Ý×ØÑ<br />
ËÐÓÒ×ÙÔÔÓ×HÒÚÖÒØ×ÓÙ×TØÓÒÒÐ×ÒtÓÒÓØÒØ<br />
ÓÒ×ØÖÙÖÙÒÓ×ÖÚÐT<br />
ÈÖÓÒØÖ×ÐÓÒÔÖÒÐÓÒÙÙÓÑÔÐÜ t) ÇÒÓÒ×ØØÕÙÐÓÒØÓÒψ(r, −t)ÒÓØÔ×ÐÑÑÕÙØÓÒÕÙψ(r, ÒØÒÒØÓÑÔØH ∗ ÓÒ H =<br />
Hψ ÇÒÚÓØÕÙψ(r, t)Øψ ∗ −t)Ó××ÒØÐÑÑÕÙØÓÒÄØØØÖÒ×ÓÖÑ<br />
ÐÒ×ØÔ××ÙÖÔÖÒÒØÖÓÒÓ×ÖÚÕÙÐ×ØØ×ÒØÐØÒÐÓÚÒØ<br />
r, ÔÙØÓÒØÖÖØÔÖT(ψ(r, t))<br />
×Ò××ÔÒÖØÖ×ÔÖÙÒÀÑÐØÓÒÒHÓØÐÕÙØÓÒËÖÒÖ<br />
Hψ(r, t) = i ∂<br />
∂t ψ(r, t) <br />
Hψ(r, −t) = −i ∂<br />
∂t ψ(r, −t) <br />
∗ (r, −t) = i ∂<br />
∂t ψ∗ <br />
(r, −t)<br />
= ψ ∗ ØÖÒ×T×ØÙÒÓÔÖØÙÖÒØÙÒØÖÒÒÓØØÓÒÖØÓÒ <br />
(r, −t)<br />
T |ψ〉 = |ψ〉 T<br />
T 〈ψ| = T 〈ψ|<br />
T f <br />
T i = f <br />
T <br />
i = i f = f ∗<br />
i ÚÐÓÒ×ÕÙÒÕÙ|ψ〉 = a|ψ1〉 + b|ψ2〉 ⇒ T |ψ〉 = a∗T |ψ1〉 + b∗ |ψ2〉<br />
Ü×ØÖØÔÖ ÒÖÙÒÕÙÒØØÓÒ×ÖÚ ÙØÖÔÖØÓÒÒÔÙØÔ×ÓÒ×ØÖÙÖÙÒÚØÙÖÔÖÓÔÖTØÓÖØÓÖ<br />
p)×ÔÖÓÔÒØÐÐÓÒÐÜ<br />
T<br />
ÄØØÙÒÔÖØÙÐÕÙÖÚØÙÖ(E, ψ(x,<br />
t) ∝ e i(p·x−Et) ÄÔÔÐØÓÒÙÖÒÚÖ×ÑÒØÙØÑÔ×ÓÒÒ <br />
Tψ(x, t) ∝ e i(−p·x−Et)
ÕÙ×ØÕÙÚÐÒØÐØØÙÒÔÖØÙÐ×ÔÖÓÔÒØ×ÐÓÒÐÜÜ ÉÔÖÓÙÚÞÕÙ <br />
ØÔÖÒÐÓ<br />
ÉÕÙÐÐ×ØÐØÓÒÌ×ÙÖÐÐØÙÒÔÖØÙÐ<br />
<br />
−Sz〉ØØÓÔÖØÓÒ×ØÓÒ Sz〉ÒØÖÒ<br />
ÇÒÔÙØÑÓÒØÖÖÕÙÔÓÙÖÙÒÔÖØÙÐ×ÔÒ ÖØÔÖÐ×ÔÒÙÖ<br />
ÄÓÔÖØÓÒÌÔÔÐÕÙÙÒÔÖØÙÐÒ×ÐØØ×ÔÒ|S, ÙÒÖÒÚÖ×ÑÒØÙ×ÔÒØÑÒÐØØ|S,<br />
(r,ØÐØØØÖÒ×ÓÖÑ×ØÓÒÒÔÖ<br />
Ó <br />
ÄÓÖ×ÙÒÐÙÐÐÑÒØÑØÖÅ××ÓÙÒØÖÒ×ØÓÒ→ÐÒÚ ÖÒÔÖÖÒÚÖ×ÑÒØÙØÑÔ×ÑÒÐÕÙÚÐÒ<br />
σy<br />
×ØÓÒÐØØÚÖ×ÐØØ×ØÒØÕÙÐÐÐØØØÖÒ×ÓÖÑÚÖ× ËÐÖÒÚÖ×ÑÒØÙØÑÔ××ØÙÒ×ÝÑØÖÙ×Ý×ØÑÐÑÔÐØÙØÖÒ <br />
<br />
<br />
T ψ <br />
rψT <br />
(t) = 〈ψ|r|ψ〉(−t) ÑÑÓÒÓØÒØ T ψ <br />
pψT <br />
(t) = −〈ψ|p|ψ〉(−t)<br />
<br />
T ψ <br />
LψT <br />
(t) = −〈ψ|L|ψ〉(−t)<br />
T ψ <br />
SψT <br />
ÕÙÚÐÒØÙÒÖÓØØÓÒ◦ÙØÓÙÖÐÜÝ<br />
(t) = −〈ψ|S|ψ〉(−t)<br />
<br />
T |S, Sz〉 ∝ Ry(π)|S, Sz〉<br />
ψ+<br />
ψ−<br />
<br />
<br />
T ψ+<br />
ψ−<br />
<br />
(r,Ø= −iσy<br />
ψ+<br />
ψ−<br />
<br />
0 −i<br />
=<br />
i 0<br />
〈ψB|M|ψA〉 = ψT ÐØØØÖÒ×ÓÖÑ ×ØÕÙÚÐÒØ<br />
<br />
<br />
A MψT B<br />
A → B B<br />
<br />
(r, −Ø<br />
T → A T
×ÓÒØÖÒØ×ÖÐ×ÔÔ×××ÐÒ×ØÔ×ÐÑÑÔÓÙÖÐ×ÙÜ ÍÒÓÒØ×ØÖÐÒÚÖÒ×ÓÙ×Ì×ØÓÑÔÖÖÐØÙÜÙÒÖØÓÒ ÐÙ×ÓÒÒÚÖ× →Ó=Ò=<br />
ØØ×ÔÖÙÒ×ÔÓ×ØÒ×Ò×ÐÙ×ÔÒÓÒ ÖØÓÒ× Ò×Ð×ÓÐ×ÔÖÓØÐ××ÓÒØÒÓÒÔÓÐÖ××ØÐ×ÔÖÓÙØ×ÖØÓÒ×ÓÒØ<br />
→ ÁÐÙØ×ÓÙÐÒÖÕÙÑÑ×| MAB<br />
ÖÖÒØÐÙÑÐÖØÓÒØÐ×Si×ÓÒØÐ×ÚÐÙÖ×Ù×ÔÒ×ÔÖØÙÐ× ÓpabØpcd×ÓÒØÐ×ÚÐÙÖ×ÐÕÙÒØØÑÓÙÚÑÒØ×ÔÖØÙÐ×Ò×Ð <br />
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TÐ××ÒÒ×qØrÓÒd×ØÙ××ÒÒËT×ØÙÒ×ÝÑØÖÐ <br />
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d×ØÒÚÖÒØÐÓÖ×ÕÙSÒ×Ò<br />
d = fS ËÓÙ×ÐÓÔÖØÓÒT<br />
ÑØÓ×Ö×ÓÒÒÑÒØÕÙÍÒ×ÑØÓ×ÓÒ××ØÔÓÐÖ×ÖÐ× ÒÙØÖÓÒ×ÔÖÓÙØ×Ò×ÙÒÖØÙÖÔÖÙ×ÓÒ×ÙÖÙÒÖÒÖÑÒØ× ÄÑÓÑÒØÐØÖÕÙÔÓÐÖÙÒÙØÖÓÒÔÙØØÖÑ×ÙÖÔÖÖÒØ×<br />
T : d ↦→ −fS. ÄØÙÖÓØÓÒØÖÒÙÐÓd<br />
ÙÒÖØÓÙÖÒÑÒØ××ÔÒ×ÔÖÔÔÐØÓÒÙÒÊÐÖÕÙÒÕÙØË ×ÙÔÖØÐÐÑÒØÔÓÐÖ×ØÖÚÖ×ÙÒÖÓÒÓ×ÓÒØÔÔÐÕÙ×× ÑÔ×ÐØÖÕÙØÑÒØÕÙÔÖÐÐÐ×ØÙÒÓÖÑ×ÇÒÖØÙÖ<br />
=<br />
ÐØÖÒØÚÑÒØÒÔÖ×ÒØÒÐ×ÒÑÔÐØÖÕÙÓÒÖÙÖ ØØÖÕÙÒÔÖÖÔÔÓÖØÐÚÐÙÖÄÖÑÓÖÄÑ×ÙÖ×ØØÙ ÐÑÓÑÒØÐØÖÕÙ×ØÒÓÒÒÙÐÓÒ×ØØÒØÖÓÙÚÖÙÒÐÖÔÐÑÒØ<br />
<br />
|=| MBA |Ð×ØÙÜÚÒÑÒØ×ØØÒÙ×<br />
(2Sa + 1)(2Sb + 1) p 2 dσab<br />
ab<br />
dΩ = (2Sc + 1)(2Sd + 1) p 2 dσcd<br />
cd<br />
dΩ<br />
d = <br />
i<br />
0<br />
qiri
ÐÑØ×ÙÔÖÙÖÄÑÓÝÒÒ×ÜÔÖÒ×ØÙÐÐ×Ð×ÔÐÙ×ÔÖ××ÓÒÒ ÐÖ×ÕÙ×ÜÔÖÑÒØÐÄÖ×ÙÐØØÓØÒÙ×ØÜÔÖÑ×ÓÙ×ÐÓÖÑÙÒ<br />
ÉÖÖÒ×ÐØÐ×ÔÖØÙÐ×Ð×Ö×ÙÐØØ×ÔÓÙÖÐÐØÖÓÒØÐÔÖÓØÓÒ<br />
< −25ÑÓÒÒÄÚÐÄ<br />
ÎÓÐØÓÒÈØÐ×Ý×ØÑ×ÃÓÒ×ÒÙØÖ×<br />
ØÐÈneutron<br />
ÕÙÐÓÔÖØÓÒÈØØÐÑÒØÙÒÓÒÒ×ÝÑØÖÒ×ÐÒØÖØÓÒÐ ÉÙÒ×ØÐÒ×ÐÒØÖØÓÒÐÂÙ×ÕÙÙÜÒÚÖÓÒ×ÓÒÓÒ×Ö ÕÙÔÔÖ××ØÖÓÒÓÖØÒØÐÚÓÐØÓÒÈØÒØÔÖÙÒÓÒÓÙÖ×ÖÓÒ× È×ØÙÒÖÒÙÖÓÒ×ÖÚÒ×Ð×ÒØÖØÓÒ×ÓÖØØÐØÖÓÑÒØÕÙ<br />
Ð×ÓÈ×ØÑÒ×ØÑÒØÚÓÐ ØÒ×ÓÑÔÒ×ÔÖÐÚÓÐØÓÒÔÙ×ÐÓÖ×ÓÒÓÙÚÖØ×ÔÖÓ××Ù× Ä×Ý×ØÑ×ÃÓÒ×ÒÙØÖ× ÄÑ×ÓÒK 0Ø×ÓÒÒØÔÖØÙÐK 0ÓÒØÐØÖÒØËK0 1ØËK ÒØÖÑ×ØÖÙØÙÖÒÕÙÖ×ÓÒK 0 ØÓÒÐÄ××ÒØÖØÓÒ× ÐØÖÒØ−1ÄÒÓÑÖÕÙÒØÕÙØÖÒØÒ×ØÔ×ÓÒ×ÖÚÒ×ÐÒØÖ<br />
dsÆÐÕÙÖ×<br />
×ÓÒØÓ×ÖÚ×ÐÐ×ÔÙÚÒØØÖÖØ×ÔÖÙÒÖÔÙØÝÔÖÔÖ×ÒØÒ×<br />
= dsØK =<br />
ÐÙÖ Ð×ÙÜÔÓÒ×ÒÙÜÒ×ÐÙÖ×ÖÒØ×ØØ×Ö ÚÐ×ÙÜÕÙÖ×ØÐ×ÙÜÒØÕÙÖ××ÓÖØÒØ×ÓÒÔÙØÓÖÑÖ<br />
0<br />
K K 0 ( )<br />
d (d)<br />
( )<br />
s<br />
s<br />
K 0 (K 0 ) → π + π − Ø<br />
K<br />
+<br />
W (W )<br />
0<br />
0 (K 0 ) → π 0 π 0<br />
−<br />
d (d)<br />
u ( u)<br />
d ( u )<br />
u ( d)<br />
=<br />
0 = −1<br />
π π− +<br />
ou<br />
0 0 π π<br />
ÖÑÑ×ÒØÖØÓÒÙK 0 (K 0 ÐÔÓ××ÐØÙÒÑÒ×ÑØÐÕÙÐÙÖÔÖ×ÒØÐÙÖ 0×ÙÖ <br />
ÁÐ×ØÙÒ<br />
) ÄÓ×ÖÚØÓÒ×ÑÓ××ÒØÖØÓÒÓÑÑÙÒ×ÙK 0ØÐK
0<br />
d u s<br />
+<br />
K W W<br />
s u d<br />
ÐÒØÖÚÒØÓÒÐÒØÖØÓÒÐÙÒØØØÖÒØË−1(+1)×ØÖÒ×ÓÖÑ ÖÑÑÒÐÐÓÑÔÖÒÒØÙÒÓÙÐÒÓ×ÓÒÚØÙÖÏÈÖ ×ÔÓÒØÒÑÒØÒÙÒØØØÖÒØË+1(−1)ØÖÚÖ×ÙÒØØÚÖØÙÐÙÜ<br />
ÖÑÑÓÒÚÖ×ÓÒÙÒK 0ÒÙÒK 0<br />
ÔÓÒ× K 0 ↔ 2π ↔ K 0 ÒÖ×ÓÒÑÒ×ÑÐÓÒØÓÒÓÒÙÒÓÒÙÒÒ×ØÒØÓÒÒ ÔÙØØÖÖÔÖ×ÒØÓÑÑÙÒ×ÙÔÖÔÓ×ØÓÒ|K 0 K<br />
〉 = |ds〉Ø 0 <br />
= ÓÒ×ÖÓÒ××ÓÒ×ÙÖÔÓ×ØÐÙÖÒÚÙÒÖØÕÙÐÔÐÙ××Ð× <br />
ds P |K0 〉 = −|K0 Ø <br />
<br />
〉 PK<br />
0<br />
<br />
<br />
= −K<br />
0 ÙØÖÔÖØÚÐÓÒÚÒØÓÒη=−1ÓÒ <br />
C|K0 <br />
<br />
〉 = −K<br />
0 Ø <br />
<br />
CK<br />
0<br />
ÖÒÒÖÙÜÓÒÐÙ×ÓÒ×ÔÝ×ÕÙ×ÄÓÔÖØÓÒÓÒÓÒØØÈÓÒÒ ÊÑÖÕÙÞÕÙÐÓÜη ÒÖØÐ××Ò××ÓÖÑÙÐ×ÕÙ×ÙÚÒØ×Ò×<br />
CP |K0 <br />
<br />
〉 = K 0 <br />
<br />
ØCP K 0 Ò××ÓÒ×Ð×ØØ×<br />
|K0 1<br />
<br />
1 〉 = √ |K<br />
2<br />
0 <br />
<br />
〉 + K 0<br />
et |K0 2 〉 = 1 <br />
√ |K<br />
2<br />
0 <br />
<br />
〉 − K 0 <br />
<br />
×ÓÒØÖØÖ××ÔÖÂP−×ØÖÕÙ<br />
+<br />
K<br />
0<br />
= −|K0 <br />
〉<br />
= |K0 <br />
〉
ÔÔÐÕÙÓÒ××ØØ×ÐÓÔÖØÙÖÈ<br />
CP |K0 1〉 = CP 1 ÑÑ <br />
√<br />
2<br />
ØÖÓ×ÔÓÒ× ÇÒÓÒÙÜØØ×ÓÖØÓÓÒÙÜÚ×ÚÐÙÖ×ÔÖÓÔÖ×ÈØÖÑÒ× Ò×ÐØØÒÐÐ×ÒØÖØÓÒÒÙÜÔÓÒ×ÓÒÔÙØÒØÖÓÙÖÐ ÓÒ×ÖÓÒ×ÑÒØÒÒØÐ×ÒØÖØÓÒÐÙÓÒÒÙØÖÒÙÜØ<br />
CP<br />
0ÔÖ×ÙØ ÑÓÑÒØÓÖØÐÖÐØÄππÄÓÒØÐÔÓÒØÒØ×Ò××ÔÒÄππ = ÐÓÒ×ÖÚØÓÒÙÑÓÑÒØÒÙÐÖÈÓÙÖÐÚÓÒπ 0 Ó CP(π ÈÓÙÖÐÚÓÒπ + Ó CP(π + π − ×ØÙØÓÒÚÓ×ÒÐÐÖØÔÖÐÙÖ ÓÒÓØÒØÖÓÙÖÙÜÑÓ<br />
π3ÓÒ×ØÒ×ÙÒ <br />
) = +1 Ò×ÐØØÒÐÐ×ÒØÖØÓÒÒØÖÓ×ÔÓÒ×π1, π2,<br />
+ ÑÒØ×ÒÙÐÖ×ÓÖØÙÜÄπ1π2Øℓπ3ØÐ×ÕÙÄπ1π2 ÓÒ×ÖÚØÓÒÙÑÓÑÒØÒÙÐÖÈÓÙÖÐÚÓπ 0 Ò×ØÒÖÕÙÖØÕÙÄπ0 Ó CP<br />
|K 0 1 〉Ø|K 0 2 〉×ÓÒØ×ØØ×ÔÖÓÔÖ×ÈÚÐ×ÚÐÙÖ×ÔÖÓÔÖ×<br />
<br />
|K0 <br />
<br />
〉 + K 0<br />
= 1 <br />
√ CP |K<br />
2<br />
0 <br />
<br />
〉 + CP K 0<br />
= 1<br />
<br />
K 0<br />
√<br />
2<br />
<br />
+ |K0 <br />
〉 = +|K0 1 〉<br />
Ø−1<br />
π0ÓÒÔÖØÕÙ π 0 π 0 π 0ÁÐ×Ò×ÙØÕÙ<br />
CPπ0 1π0 2<br />
CPπ0 3<br />
|K 0 2 〉 = −|K0 2 〉 <br />
P(π 0 π 0 ) = (Pπ) 2 · (−1) Lππ = (−1) 2 (−1) 0 = +1<br />
C(π 0 π 0 ) = (Cπ) 2 = +1<br />
0 π 0 ) = +1 <br />
π −P(π + π − ) = +1<br />
C(π + π − ) = (−1) Lππ = +1<br />
0ÔÖ×ÙØÐ<br />
ℓπ3 =<br />
π0π0Ð×ØØ×ØÕÙÓ× 1π0 3×ÓÒØÔÖ×ÒÖ×ÓÒÐ×ÝÑØÖÙ×Ý×ØÑ<br />
2Øℓ π0 = +1<br />
= −1 (Cπ0 = +1, P<br />
3 π0 = (−1)(−1)<br />
3 ℓπ0 <br />
<br />
3 = −1)<br />
(π0π0π0 ) = −1
ÈÓÙÖÐÚÓπ + π−π0ØÖÙÑÒØ×ÝÑØÖÒ×ØÔ×ÚÐÐÈÖÓÒØÖ ÓÒÔÙØÖÑÖÕÙÖÕÙÐÐÒÒÖØÕÙØØ×ÒØÖØÓÒ×ØÔØØÒ<br />
≃ÅÎÐØØÒÐ×ØÓÒÓÑÒ ÖÖÐÑ×××ÔÖØÙÐ×Éπππ ÔÖÐ×ÓÒ×Äπ + 0 ×ØÙØÓÒÓÑÒÒØÓÒÔÖØÕÙ<br />
= ÓÒÓ×ÔÖÓÑÑÓØπ3 CP(π + π− Ó ÑÔÓÙÖÐ××ÙÜÔÓÒ×<br />
ÒÖ×ÙÑ<br />
) = +1<br />
CP(π<br />
π 0Ò×ØØ<br />
π−Øℓπ CP(π 0 ) = −1 (Cπ0 = +1, Pπ0 = (−1)(−1)ℓπ0 = −1)<br />
+ π − π 0 <br />
) = −1<br />
|K0 1 〉 → π0π0 ÓÙπ + π− |K0 2 〉 → π0π0π0 |K0 2 〉 → π+ π−π0ÓÒÒÔÔÖÓÜ |K0 1 〉 π0π0π0 |K0 1 〉 π+ π−π0ÓÒÒÔÔÖÓÜ |K0 2 〉 π0π0 ÓÙπ + π− <br />
ÙÜØØ×ÓÒ×ÒÙØÖ×ÝÒØ×Ñ×××ÔÖØÕÙÑÒØÒØÕÙ×∼ ÅÎØ×ÙÖ×ÚØÖ×ÖÒØ× ÄØÙÜÔÖÑÒØÐ×ÔÖÓ××Ù××ÒØÖØÓÒÖÚÐÐÜ×ØÒ ÄÙÒÔÔÐKÞÖÓSÓÖØ(K 0 S )ÙÒØÑÔ×Ú(0.8926 ± 0.0012) 10−10 ×Ø××ÒØÖÒÙÜÔÓÒ×<br />
K 0 S → π+ π −<br />
K 0 S → π0 π 0<br />
<br />
Br = 68.61 ± 0.28%<br />
Br = 31.39 ± 0.28%
ÄÙØÖÔÔÐKÞÖÓÄÓÒ(K 0 L )ÙÒØÑÔ×Ú(5.7 ××ÒØÖÒØÖÓ×ÔÓÒ×Ò×ÕÙÒÑÓ××ÑÐÔØÓÒÕÙ×<br />
ÉÔÓÙÖÕÙÓØØÖÒÖÒÒ×ÐØÑÔ×Ú ÄÓÑÔÖ×ÓÒÚÐ×ÖÐ× Ø ×ÙÖÐ××ÓØÓÒ<br />
Óℓ =<br />
ÃÞÖÓÇÒÔÖÓÙØÓÒÒÓÖÑÐÑÒØÔÖÒØÖØÓÒÓÖØÕÙÓÒÒÐ× ÁÐÙØ×ÓÙÐÒÖÐÔÖÓÐÑÓÒÔØÙÐÔÓ×ÔÖÐÒØÓÒÐÔÖØÙÐ ØØ×ÔÖÓÔÖ×ÐØÖÒØÃ0ØK 0ÄÔÖØÙÐ××ÒØÖÔÖÒØÖØÓÒ 1Ø<br />
×ÒØÖØÓÒ ØÖÑÒÓÙÐØØÝÒØÙÒØÑÔ×ÚÒÒ ÒÓÒÑ×ÒÚÒÔÓÙÖÐÔÖÑÖÓ×ÐÜ×ØÒÐÚÓ<br />
ÐÒÓÒÒÒØ×ØØ×ÙÖÚÒØØ×ÔÖÓÔÖ×ÈÃ0<br />
ÐÓÖÖ ÁÐ×ØÙÒ×ÒÐØÖ×ØÒÙÔÙ×ÕÙÐÖÔÔÓÖØÑÖÒÑÒØ×Ø<br />
Ð ÙÒÖÔÔÓÖØÑÖÒÑÒØÙÑÑÓÖÖÖÒÙÖØØÓ×ÖÚØÓÒ ÔÔÓÖØÐÔÖÑÖÔÖÙÚÕÙÈÔÙØØÖÚÓÐÒ×ÙÒÔÖÓ××Ù×ÒØÖØÓÒ<br />
−3ÄÚÓÒÙÜÔÓÒ×ÒÙØÖ×ØÓ×ÖÚÙÐØÖÙÖÑÒØÚ<br />
K<br />
ÐÙ×ÔÓ×ØÐÙÖ Ç×ÖÚØÓÒÐÚÓÐØÓÒÈ<br />
Ö×ÙÖÙÒÐÈÖÑÐ×ÔÖØÙÐ××ÓÒÖ×ÔÖÓÙØ×Ð×Ö× ÔÓÒ×ÓÒ× ×ÓÒØÐÝ×ÔÖÐÑÔÙÒÑÒØÐ×ÔÓØÓÒ×ÔÖÓÚÒÒØ ÍÒ×ÙÔÖÓØÓÒ× Î×Ø ÄÚÓ×ÒØÖØÓÒÃ0 L<br />
×ÒØÖØÓÒπ 0 ØÐÖ×ØÔÖÒÔÐÑÒØ×ÓÒ×ÒÙØÖ× ÉÕÙÐÐ×ØÐÖØÓÒÔÓØÓÒ×ÙØÒÖÐÑÒ<br />
γγ×ÓÒØ×ÓÖ×Ò×ÙÒÖÒÈÑÔ××ÙÖ<br />
ÂÀÖ×ØÒ×ÓÒØÐÈÝ×ÊÚÄØØ <br />
→<br />
e, µ<br />
± 0.04) 10−8×Ø Br = 12.38 ± 0.21% <br />
Br = 21.6 ± 0.8%<br />
K 0 2 = K 0 <br />
L<br />
K0 L → π0π + π −<br />
K0 L → π0π 0 π 0<br />
K0 L → π± + ℓ ± <br />
+ νℓ(νℓ) Br = 65.7 ± 0.6%<br />
K 0 1 = K 0 Ø<br />
2ÈÖÖØÓÒÓÖÖÐ×ØØÙØÖÐØÐØØÚÙÒÓÒØÒÙÒÕÙÖ×<br />
S<br />
Ã0 0 L → π+ π − <br />
→ π + π −ØÓ×ÖÚÔÓÙÖÐÔÖÑÖÓ×
P<br />
Aimant<br />
Cible Pb K 0<br />
S<br />
π −<br />
K 0<br />
ËÑÙ×ÔÓ×ØÑ×ÙÖÐÚÓÐØÓÒÈÚÐ×ÃÓÒ× ÒÙØÖ×<br />
L<br />
ÐÓÐÐÑØÙÖÒØÖÙ×ÔÓ×ØØØÓÒÐÒÖ×ØÔÖØÕÙÑÒØÔÐÙ×ÕÙ<br />
S×ØØÒÙÖÔÑÒØØÐ×ØÒÑÓ××ØÙ ÄÓÑÔÓ×ÒØÃ0 ÐÓÑÔÓ×ÒØÃ0 L ÉÕÙÐÐ×ØÐÖØÓÒK 0 S×ÙÖÚÚÒØÔÖ××Ñ ÄÖÓÒÓÐ××ÒØÖØÓÒ×K 0 L → π+ π−×ÓÒØÖÖ××ØÒÔÖ ÙÒÒÒØÓÒØÒÒØÐÐÙÑÞÙÜÔÓÙÖÑÒÑ×ÖÐ×ÒØÖØÓÒ×K 0 ÚÐÑÐÙÄ×ÙÜÔÓÒ×Ö××ÓÒØØØ×Ò×ÙÜ×Ö×ÑÖ× ×ÔØÖÓÑØÖÑÒØÕÙ×ØÓÑÔÐØÔÖ××ÒØÐÐØÙÖ×ËØÔÖÙÒ ØÒÐÐ×ÒØÖÐ×ÕÙÐÐ××ØÒØÖÐÙÒÑÒØÒÐÝ×ÓÙÐ<br />
ÒÖÕÙÖÒØ Ñ×ÙÖ×ØÒÓÒÒÒØÖÐ×ÙÜÖ×Ä××ÓÙÖ×ÖÙØ×ÓÒØÖÙØ× >Ä<br />
ÕÙÐÑ××ØÚ×ÙÜÔÓÒ××ÓØÓÑÔØÐÚÐÑ××ÙÓÒ ÕÙÐ×ÔÓÒ××ÓÒØÖ×ÓÔÔÓ××<br />
ØØÙÖÖÒÓÚÕÙ×ÐØÓÒÒÐ×ÔÖØÙÐ×Ö×ÖÔ×β<br />
ØÖØÓÖ××ÓØÔÖÓÐÐÒ×Ù ÕÙÐÚÖØÜ×ÒØÖØÓÒÖÓÒ×ØÖÙØÔÖÐÜØÖÔÓÐØÓÒ×ÙÜ<br />
L××ÒØÖÒÙÜ ÄÜÔÖÒÓÒÙØÙÖ×ÙÐØØÑÔÓÖØÒØÕÙÐÃ0 ÔÓÒ×ÚÙÒÖÔÔÓÖØÑÖÒÑÒØÊÃ0 L → π + π− Ö× →ØÓÙ×Ð×ÑÓ× Ã0<br />
L<br />
±·10 −3 ÇÒÔÙØÒÚ×ÖÙÜÑÒ×Ñ×<br />
π +<br />
18 m<br />
E B E<br />
S<br />
K 0<br />
L<br />
C
ÖÔÖ×ÒØÖÔÕÙÑÒØÔÖÐ× 2×ØÙÒ×Ý×ØÑÕÙÔÙØÚÓÐÖÈÓÑÑ ÐÙÖ<br />
SØ 1)<br />
ÙÒÑÒ×ÑÖØÃ0 LÃ0 ÙÒÑÒ×ÑÒÖØÔ××ÒØÔÖÐÑÐÒ×ØØ×Ð×ØØ×Ã0 ØØ×ÖØÖ×ÔÖÙÒÔÖÑØÖǫÔÖÓÖÓÑÔÐÜØØÐÕÙ|ǫ|≪<br />
Ã0 LÒ×ÓÒØÔ××ØØ×ÔÙÖ×Ò|K 0 1〉Ø|K 0 2〉Ñ×ÙÒ×ÙÔÖÔÓ×ØÓÒ×<br />
1)<br />
π<br />
π<br />
K 0<br />
K L<br />
0<br />
0<br />
L<br />
K 1<br />
ÅÒ×Ñ×ÒÚ×Ð×Ð×ÒØÖØÓÒÙK 0 L<br />
|K0 1<br />
S 〉 = <br />
1+ | ǫ | 2 (|K0 1〉 − ǫ|K0 Ø <br />
2〉)<br />
|K0 1<br />
L 〉 = ÄÔÖ×ÒÐÓÑÔÓ×ÒØ|K 0 1〉Ð×ÐÙÖÒ×ÐÑÔÐØÙ ×ÒØÖØÓÒÐØØK 0 LÓÒÒÙÒÔÖÓÐØÓ×ÖÚÖÐÚÓK 0 L → 2π<br />
|ǫ| 2 ÍÒÒÐÝ×ØÐÐÑÓÒØÖÕÙÐÑÒ×Ñ |<br />
ÕÙÐÐÐÚÓÐØÓÒÈÄÚÓÐØÓÒÈ×ØÑÜÑÐØÓÒÚØØÖÓÙÚÐ ÑÒ×Ñ<br />
ÈÒ×ØÔ×ÖÒØÐÒØÖÔÖØØÓÒÔØØØÒ×ØÔ×ÚÒØÇÒ ÓÒØÜØØÓÖÕÙÔÔÖÓÔÖÔÖÑØØÒØÖÖÐÈÖÓÒØÖÐÚÓÐØÓÒ ÄÒØÖÔÖØØÓÒÐÚÓÐØÓÒÈ×ØÙÒÖØÒÓÒÔÐÙ×ÓÑÔÐÜ ×ØÓÑÒÒØÚ| ǫ<br />
ÖÔÖÒÖ×ÙØÔÐÙ×ØÖ ÄØÙ×ÑÓ××ÑÐÔØÓÒÕÙ××ÒØÖØÓÒÙK 0 ÑÒØÐÓ×ÖÚØÓÒÙÒÚÓÐØÓÒÈËÈØØÓÒ×ÖÚÐ×ÚÓ×<br />
LÓÒÙØÐ<br />
K0 L → π−ℓ + νℓØπ + ℓ−νℓ×ÖÒØÕÙÔÖÓÐ×ÜÔÖÑÒØÐÑÒØÓÒÓØÒÙ Γ(π−ℓ + νℓ)−Γ(π + ℓ−νℓ) Γ(π−ℓ + νℓ)+Γ(π + ℓ− Ò××ÔÖÓ××Ù×Ð×<br />
ÔÓ××Ð×ØÒÙÖÓÒ×ÓÐÙÐÔÖÓÙØÓÒÑØÖØÒØÑØÖ<br />
10−3ÒÓÒ×ÕÙÒÐÚÓÐØÓÒÈÐ×ØÓÒ<br />
≃ 3 · νℓ)<br />
<br />
1+ | ǫ | 2 (ǫ|K0 1 〉 + |K0 2 〉) <br />
1 + |ǫ| 2 = |ǫ|2 −3ÔÐÙ×ÙÒÐÓÑÔÓ×ÒØÐÓÖÖ −6××ÓÙ ±<br />
2)<br />
π<br />
π
ÚÑÑÒØ Ö××ÓÖØØØÒÙÑ×Ð×ÔÖÓØÓÒ×Ö×ØÒØ×ÔÖÓØÓÒ××ÙÙÜÕÙÓÒØÒØÖ ÉÙÒÙÒ×ÙÔÖÓØÓÒ×ÔÜÔ××ØÖÚÖ×ÙÒÐÓÑØÖÐÒ ÄÖÒÖØÓÒÙÃ0<br />
ÑÐÒØØ×ÓÒÜǫ LØÖÚÖ×ÙÒÖÒ<br />
S<br />
L×ÓÑÔÓ×Ò SËÐÓÒÒÓÖÐ ÈÖÓÒØÖ×ÐÓÒØÔ××ÖÙÒ×ÙÔÙÖÃ0 ÑØÖÓÒÓ×ÖÚÐ×ÓÖØÐÔÖ×ÒÙÒÓÑÔÓ×ÒØÃ0<br />
ÚÐ×ÒÙÐÓÒ×ÐÑØÖÔÖ×ÚÓÖÔÖÓÙÖÙÙÒÖØÒØÖØÐ×ÙÜ<br />
0ÒØÖ××ÒØÓÒÖÒØÒØÖØÓÒÓÖØ<br />
ÙÒ×ÙÃ0<br />
ÑÓÑÒØÐØØÙ×Ù×ÖÖØÔÖ Ä×ÓÑÔÓ×ÒØ×K 0ØK ÓÑÔÓ×ÒØ××ÓÒØØØÒÙ×ÔÖÙÒØÙÖØÖ×ÔØÚÑÒØØ<<br />
2 (a − b)|K0 S 〉 ÕÙÐÓÑÔÓ×ÒØ <br />
ØÒ×ÐÒØÖØÓÒÓÖØÙØÖÔÖØÐÖØÓÒ<br />
K 0 + n → K − <br />
+ p<br />
Ö×ØÐÓÙÖ× <br />
|K0 L 〉 = |K0 2〉 = 1<br />
<br />
√ |K<br />
2<br />
0 <br />
<br />
〉 − K 0 <br />
|f〉 = 1 <br />
√ a |K<br />
2<br />
0 <br />
<br />
〉 − b K 0 ÍØÐ×ÒØ Ò×ÕÙK 0 <br />
1<br />
S = √ K<br />
2<br />
0 <br />
<br />
> + K 0ÓÒÔÙØÖÖ×ÓÙ×Ð ÓÖÑ |f〉 = 1<br />
2 (a + b)|K0 1<br />
L 〉 + ÇÒÚÓØÕÙ×=ÙÒÓÑÔÓ×ÒØK 0 SÔÔÖØÒ×Ð×ÙÒØÐÑÒØ ÔÙÖÒK 0 ÙÒÔÖØÐÖØÓÒ LÇÒÓ×ÖÚÜÔÖÑÒØÐÑÒØÕÙ< 0×ØÔÐÙ×ÓÖØÑÒØ×ÓÖÕÙÐÓÑÔÓ×ÒØK 0<br />
K<br />
K 0 + p → π + + Λ 0 ÒÔ×ÓÒØÖÔÖØÔÓÙÖÐK 0ÒÓÒ×ÕÙÒÐÓÒ×ÖÚØÓÒÐØÖÒ<br />
×ØÔÐÙ×ÖÕÙÒØÕÙÐÖØÓÒ K 0 + p → K + ÖÐÝÔÐÙ×ÒÙØÖÓÒ×ÕÙÔÖÓØÓÒ×Ò×Ð×ÒÓÝÙÜØÓÑÕÙ×ÒØÖÑ <br />
+ n
ÄÓ×ÐÐØÓÒØÖÒØ ×ÓÒ×ÒÙØÖ×ØÖÒØËÒ×ÓÒØÔÖÓÙØ×Ò×ÙÒÖØÓÒÓÑÑ<br />
π− + p → K0 + Λ0 <br />
S = 0 0 1 −1 0ÚÔÔÖØÖÒ×ÐÒØÐÐÓÒK ÙÓÙÖ×ÙØÑÔ×ÙÒÓÑÔÓ×ÒØK 0<br />
2 2<br />
α(t) et α(t)<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
K 0<br />
0<br />
− K<br />
∆mτ<br />
=0.5<br />
S<br />
ÊÔÖ×ÒØØÓÒÐÓ×ÐÐØÓÒØÖÒØÒÓÒØÓÒÙØÑÔ×<br />
0<br />
0 2 4 6 8 10 12 t/τ S<br />
ÔÖÐÑÒ×ÑÔÖÑÑÒØÖØÔÐÙ×ÐÓÑÔÓ×ÒØÓÙÖØÙK 0Ú ×ÔÖØÖÔÐÙ×ÖÔÑÒØÕÙ×ÓÑÔÓ×ÒØÐÓÒÙÓÒ×ÖÓÒ×ÒØÐØØ<br />
|K0 〉 = 1<br />
√ (|K<br />
2 0 L 〉 + |K0 S 〉) <br />
Ð×ÒØÖØÓÒ×ÔÓÒØÒÖÒÖØÖÑÓÖÖ×ÔÓÒÐ×ÔÖØÓÒ×<br />
−imxtÓxËÓÖØØÄÓÒÑÙÐØÔÐÔÖÐØØÒÙØÓÒexp(−Γxt/2)Ù Ä×Ý×ØÑÚÓÐÙÒÓÒØÓÒÙØÑÔ×t×ÙÚÒØÐÓ×ÐÐØÓÒexp(−iEt) =<br />
(exp ÓÒ×Ò×Ð×Ù××ÓÙÒØÑÔ×Úτx = ÐØØÖÓÙÚÖÐ×Ý×ØÑÒ×ÐØØΨ(t)×Ø| Ψ(t) | 2ÕÙ×ØÔÖÓÔÓÖØÓÒÒÐ ÇÒÔÓ×ÈÓÙÖÚÓÖÐ×ÑÒ×ÓÒ×Ù×ÙÐÐ××ÖÒÙÖ×ÐÙØÖÐ×Ù×ØØÙØÓÒ exp Γxt)<br />
E → E/, m → m/, Γ → Γ/Ó ≃ 6.582122 · 10−22ÅÎ·× <br />
(Γx) −1ÒØÐÔÖÓ
ÖÚÓÒ×<br />
Ú <br />
|Ψ(t)〉<br />
ÖÚÓÒ×ÐÑÐÒ×ÓÑÔÓ×ÒØ×ØÖÒØËØË−1×ÓÙ×ÐÓÖÑ<br />
ax(t)<br />
Ú<br />
≪ ÙØÑÔ×ØØÐÕÙτS ×Ù××ØÁÒØÖ××ÓÒ×ÒÓÙ×ÔÖÓÒØÖÙÖÑÒ×ÐÖÓÒØÐÓÖÖτS<br />
ÒÙØÐ×ÒØ Ø×Ø ÐÔÖÓÐØØÖÓÙÚÖÙÒØØØÖÒØË ÙØÑÔ× <br />
α(t)<br />
ÙÖ<br />
−1ØØÔÖÓÐØ×ØÓÒÒÔÖÚÓÖ<br />
<br />
|<br />
<br />
Ú∆m =| Ò×Ð×ÐØÖÒØS =<br />
ØÕÙ× ÓÒÒÓÒØÓÒÙØÑÔ×ØØÓ×ÖÚÒÙØÐ×ÒØÐ××ÒØÙÖ×ÖØÖ× ÓÑÔÓÖØÑÒØØÚÖÐÓÖ×ÙÒÔÖÑÖÜÔÖÒØÙÖÓÓ<br />
<br />
ÄÜÔÖÒØÖÔØÔÐÙ×ÙÖ×ÖÔÖ××ÔÙ×ÐÓÖ×ÄÚÐÙÖ∆mØÙÐ<br />
ÚÒÍËÄÔÔÖØÓÒK<br />
×Ø K<br />
∆m = (0.5307 ± 0.0015) · 10 10 s −1 ÅÙÐÐÖØÐÈÝ×ÊÚÄØØ <br />
<br />
= 1<br />
√ 2 (aL(t)|K 0 L 〉 + as(t)|K 0 S 〉) <br />
τLÐÓÑÔÓ×ÒØÓÙÖØ×ÔÖÙØ×ÙÐÐÐÓÒÙ<br />
=ÄË = exp(−imxt) exp(−Γxt/2) x<br />
t <br />
<br />
|Ψ(t)〉 = α(t)|K0 <br />
<br />
〉 + α(t) K 0 <br />
= 1<br />
2 [aS(t) Ø + aL(t)] α(t) = 1<br />
2 [aS(t) <br />
− aL(t)]<br />
α(t) | 2 = 1<br />
4<br />
mS − mL |<br />
| α(t) | 2 = 1<br />
<br />
4<br />
<br />
e −Γ S t + e −Γ L t + 2 cos(∆mt)e<br />
t<br />
−(ΓS+ΓL)· 2<br />
e −ΓSt + e −ΓLt t<br />
−(ΓS+ΓL)·<br />
− 2 cos(∆mt)e 2<br />
0ÒÓÒØÓÒÐ×ØÒÐ×ÓÙÖK 0<br />
0 + p → π + + Λ et π 0 + Σ +
ÖÑØÈÌÄÙÖ×ØÙÑÒÓØÈÙÐÒØÓÖÑ ÄÓÔÖØÓÒ×ÝÑØÖÈÌÔÖ×ÒØÙÒÒØÖØÔÖØÙÐÖÙ×ÙØÓ ÄØÓÖÑÈÌ<br />
ÒÓÒÕÙÒØÓÖÕÙÒØÕÙ×ÑÔ×ÐÒÚÖÒÐÀÑÐØÓÒÒ×ÓÙ×Ð×<br />
ÕÙÚÓÐÈÚÓÐÙ××ÌÔÖÓÑÔÒ×ØÓÒÔÓÙÖ××ÙÖÖÐÒÚÖÒ×ÓÙ×ÈÌ ØÖÒ×ÓÖÑØÓÒ×ÄÓÖÒØÞÑÔÐÕÙÐÒÚÖÒØÀÑÐØÓÒÒ×ÓÙ×ÐÓÔÖ ÈØÌØÙ××ÔÖÑÒØÒÓÒ×ÕÙÒÙÒ×Ý×ØÑÓÙÙÒÒØÖØÓÒ ØÓÒÓÑÒÈÌÑÑ×ØØÒÚÖÒÒ×ØÔ×ÚÖ×ÓÙ×Ð×ÓÔÖØÓÒ× Ò××ÙÑÓÒ×ÙÒ××ÝÑØÖ×ÓÙÌ×ØÚÓÐÑÑ×Ì×Ø ÙÒÓÒÒ×ÝÑØÖÐÓÖ×È×ØÙ××ÓÒ×ÖÚÓÒØÈ×ÓÒØØÓÙØ×ÙÜ ÓÒ×ÖÚ×ÓÙØÓÙØ×ÙÜÚÓÐ× ÈÌ Ü Ü Ü ÔÔÐØÓÒ× ÁÑ ÙÙÒ<br />
ÌÓÒ×ÕÙÒ×ÙØÓÖÑÈÌÄÔÖ×ÒÙÜ×ÒÕÙÐ Ü Ü Ü ÙÙÒ<br />
×ÝÑØÖÒÕÙ×ØÓÒ×ØÚÓÐ<br />
ÏÁ×ÒØβ<br />
ÄØÐÙÑÓÒØÖÐ×ÓÑÒ×ÓÒ×ÔÓ××Ð×Ú×ÔÔÐØÓÒ×<br />
K<br />
Ó×ÖÚÐÓÖÖ×ÔÓÒÒØÓÒÔ×ÚÐÙÖØÚØÙÖÔÖÓÔÖ×ÈÌÔÓÙÖ ÄÓÔÖØÙÖÕÙÒØÕÙO=ÈÌÐÑÑÓÑÔÓÖØÑÒØÕÙÌÓÒÒÔ× ÓÒ×ÖÓÒ×Ð×ÙÒÔÖØÙÐ×ØÒØ×ÓÒÒØÔÖØÙÐØÝÔ<br />
ÐÀÑÐØÓÒÒ×ÓÙ×OÑÔÐÕÙÕÙ Öp×ØÒÚÖ××ÓÙ×PØ×ÓÙ×TÐÓÖ×ÕÙJÒ×ØÒÚÖ×ÕÙÔÖTÄÒÚÖÒ<br />
ØÒÚÖ×ÖÐÕÙÖÚØÙÖ(t, r)<br />
ÈÓÙÖÐÔÖØÙÐÙÖÔÓ×ÀÖÔÖ×ÒØ×Ñ××ØÓÒÒØÖÕÙÐÒØÔÖØÙÐ<br />
<br />
ÐÑÑÑ××ÕÙÐÔÖØÙÐma =<br />
0 L<br />
→ 2π<br />
<br />
:ÈÌ(t, r) = (−t, −r)<br />
O|a, p, J...〉 = η〈a, p, −J, ...|<br />
[H, O] = 0 O −1 ØÔÓÙÖÙÒÑÔÐØÙØÖÒ×ØÓÒÐØØÐØØ <br />
HO = H<br />
〈b|H|a〉 = 〈b|O −1 HO|a〉 = 〈Ob|H|Oa〉 = 〈a|H b <br />
ma
ØØÓÒ×ÕÙÒÔÙØØÖÙØÐ×ÓÑÑØ×ØÐÓÒ×ÖÚØÓÒ×ÓÙ×ÈÌ<br />
ÈÌÐ×ÑÑ×Ø×ÕÙ×ÙÖÐØØÐÔÖØÙÐ×Ò×ÑÔÐÕÙÖÐÒÚÖÒ ÖÓØØÓÒ◦ÙØÓÙÖ×Ü×ÝÓÙÜËÐÓÒÑØÐÒÚÖÒ×ÓÙ×ÐÖÓØØÓÒ ÒØÔÖØÙÐÚÐÔÖÓØÓÒ−JzÇÒÖØÖÓÙÚÐÓÖÒØØÓÒÓÖÒÐÔÖÙÒ ÈÌØÖÒ×ÓÖÑÐÔÖØÙÐÙÖÔÓ×ÚÐÔÖÓØÓÒÙ×ÔÒJzÒ×ÓÒ<br />
ÐÒØÔÖØÙÐÓÒØÐÑÑØÑÔ×Ú ×ÓÙ×Ä×ÝÑØÖÈÌ×ØÓÒÔÖÓÑÒÒØ ÚÐ×ÑÑ×ÖÙÑÒØ×ÕÙ××Ù×ÓÒÔÙØÑÓÒØÖÖÕÙÐÔÖØÙÐØ<br />
ÁÐÒ×ØÑÑÔÓÙÖÐÑÓÑÒØÑÒØÕÙÒ×ÐØÖÑÒØÖØÓÒÑ <br />
maÁÐ×Ò×ÙØÕÙ<br />
Γa =<br />
<br />
Γa<br />
×ÙÖÐÑÙÓÒÚÓÖÔØÖ Ä×ÜÔÖÒ×ÙØÝÔ ÓÒØÔÖÑ×Ø×ØÖÐÒÚÖÒ×ÓÙ×ÈÌÚ<br />
→<br />
ÓÒÓØÒÙ<br />
2)ÙÊÆÔÓÖØÒØ<br />
Øma<br />
ÖÒØ×ØÝÔ×ÜÔÖÒ×ÓÒØØØÙ××ÙÖÐÐØÖÓÒÄÜÔÖÒÐÔÐÙ×<br />
ÙÒØÖ×ÖÒÔÖ×ÓÒÈÖÜÒ×Ð×ÜÔÖÒ×(g<br />
ÔÖ×ÓÒÒÐÖ×ÙÐØØ×ÙÚÒØ<br />
−<br />
(ge + − ge−)/ < ge >= (−0.5 ± 2.1) · 10−12 ÖÒ×ÓÙ×ÈÌÈØÌØÙ×ÚÐ×ÐÔØÓÒ×Ö× ÂÀÐØÐÓÒÒÒØÙÒÓÑÔØÖÒÙÙÒÒ×ÑÐ×Ø×Ø×ÒÚ<br />
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√ (|p〉|n〉 − |n〉|p〉)<br />
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ÐÓÒ×ÓÒÔÙØÓÖÑÖÐ×ØØ× ÇÒ×ÑÒ×ÙØÖ×ÖÔÖ×ÒØØÓÒ××ÓÒØÔÓ××Ð×ØÕÙÐÐÒ×ØÐÙÖ ÙÚØÙÖ×Ó×ÔÒ×Ø×ÓÒØÐÖÐØÓÒÓÑÑÙØØÓÒ[Ii, Ij]<br />
Ð×ÓØÖÔÐØ<br />
√ (|p1n2〉 + |n1p2〉)<br />
2<br />
ØØÕÙÐÓÒÕÙ×ØÖÔÖ×ÒØÔÖ <br />
1<br />
|N〉 = a<br />
0<br />
<br />
0<br />
+ b<br />
1<br />
| 2ØÖÙÒ<br />
I1 = 1<br />
2 τ1 = 1<br />
<br />
0 1<br />
, I2 =<br />
2 1 0<br />
1<br />
2 τ2 = 1<br />
<br />
1 −i<br />
, I3 =<br />
2 i 0<br />
1<br />
2 τ3 = 1<br />
<br />
1 0<br />
2 0 −1<br />
I 2 |p〉 = I(I + 1) 1 I = 2 , I3 = + 1<br />
3<br />
= 2 4 |p〉, I3|p〉 = + 1<br />
2 |p〉 <br />
I 2 |n〉 = I(I + 1) 1 I = 2 , I3 = −1 3<br />
= 2 4 |n〉, I3|n〉 = − 1<br />
2 |n〉<br />
= I1 ± iI2<br />
ÉÐÙÐÖI+|p〉, I+|n〉, I−|p〉, I−|n〉<br />
Q = 1<br />
2 + I3<br />
<br />
ǫijkIkÐÐ×<br />
1 0<br />
=<br />
0 0<br />
= i<br />
|I = 1, I3 = +1〉 = |p1p2〉<br />
|I = 1, I3 = 0〉 = 1 <br />
|I = 1, I3 = −1〉 = |n1n2〉
|I = 0, I3 = 0〉 = 1 Ð×Ó×ÒÙÐØ <br />
Ò×ÔÖØÙÐ×ØØÐ×Ó×ÒÙÐØÒØ×ÝÑØÖÕÙ ×ÖÔÔÓÖØÐ×Ù××ÓÒÔÖÒØÐ×ÝÑØÖÐÔÖØ×Ó×ÔÒÓÖÐÐ<br />
√ (|p1n2〉 − |n1p2〉)<br />
2<br />
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ÇÒÒÙÑÖÓØÐ×ÔÖØÙÐ×Ø×ÑÔÐÐÖØÙÖÔÖ|a〉|b〉<br />
×ÙÜÔÖØÙÐ× ÔÖÒ×ÓÓÖÓÒÒ××ÔØÐ×××ÔÒ×Ø×<br />
→<br />
×Ó×ÔÒ×<br />
ÁÐ×Ò×ÙØÕÙ <br />
ÉÚÖÖÕÙÓÒÓØÒØÐ×ÓÒØÓÒ×ÓÒØÙ×ÔÐÙ×ÙØÔÓÙÖÄ<br />
Ψ(x1, S1, I1; x2, S2, I2) = −Ψ(x2, S2, I2; x1, S1, I1)<br />
ÔÒÙ×Ý×ØÑÔÖÒÖÒØ×ÚÐÙÖ××ÔÖ×ÙÒÙÒØ×ØÙ×ÒØÖØ ØÙÖ××Ó×ÔÒÓÑÑÔÓÙÖÐ×ÚØÙÖ×ÑÓÑÒØÒÙÐÖÈÓÙÖÒÙÐÓÒ×Ð×Ó× ÄÒÖÐ×ØÓÒÙÒÒ×ÑÐÒÙÐÓÒ××ØÔÖÓÑÔÓ×ØÓÒ×Ú ÔÓÙÖÔÖØÒØÖ Ø<br />
(−1)<br />
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Q = 1<br />
2 B × + I3 ØÓÒÐÙÖØØÖÙÖÙÒÒÓÑÖÖÝÓÒÕÙ−1ÁÐÒ×ØÑÑÔÓÙÖÐ Ä×ÖÐ×××Ù××ÔÔÐÕÙÒØÙ×ÒØÔÖÓØÓÒ×ØÒØÒÙØÖÓÒ×ÓÒ <br />
Ð×ØØ× 0×ÓÒØØÖÙÙÒÙÜÔÓÒ×Ø×ÐÓÒÒØ ØÖÔÐØÓÑÔÓ×π ±Øπ |I = 1, I3 = +1〉 ↔ |π + 〉<br />
|I = 1, I3 = 0〉 ↔ |π0 〉<br />
|I = 1, I3 = −1〉 ↔ |π− <br />
ÒÙÐÓÒ×ØÔÓÒ× ÇÒ×ÔÓ××ÐÓÖ×ÙÒÓÖÑÐ×ÑÕÙÔÖÑØÖÖÙÒ×Ý×ØÑÑÜØ<br />
ÓÒ×ÖÚØÓÒÐ×Ó×ÔÒ<br />
〉<br />
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I+S+L <br />
= −1<br />
Ò Ò×Ð×ÙÜÒÙÐÓÒ×ÐÖÐØÖÕÙ×ØÓÒÒÔÖÁ3<br />
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[HIF, I] = 0
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ÇÒÒÙØÐ×ÖÐ××ÙÚÒØ× <br />
Á3×ØØ×ÑÑÁØÖÒØ×ÚÐÙÖ×Á3×ÓÒØÒÖ× ×ØØ×ÒÖÒÓÒØ×ÚÐÙÖ×ÒØÖÑÒ×Á2Ø<br />
[H, I] = 0<br />
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ÚÓÐØÓÒØÐ×ØØ×ÑÑÁÒ×ÖÒØÔÐÙ×ÒÖ×ÒÁ3ÇÒ ×ÖØÒ×ÙÒ××ÝÑØÖÔÔÖÓ ÓÒÒÓÒ×ÙÒÔÔÐØÓÒÐÖÐ ÆÓØÓÒ×ÕÙÒÔÖ×ÒÙÒÔÖØÙÖØÓÒÑÙ×Ý×ØÑÓÒÙÖØÙÒ Ù×Ý×ØÑÙÜÒÙÐÓÒ×ØÒ××ÓÒ×<br />
ÉÑÓÒØÖÖÕÙ×ØÓÑÔØÐÚ <br />
Ù×Ý×ØÑ<br />
ÒÓÑÒÒØÚÓÒÓØÒØ <br />
ÇÒÓÒÙÒÑÓÝÒÕÙÒØÖÐÖÒÒØÖÐØØ×ÒÙÐØÙØÓÒØ<br />
ÔÓÒÒÙÐÓÒ ÐØØØÖÔÐØ×Ó×ÔÒØØ×ÒÓÒÐ×ÙÒ×Ý×ØÑÙÜÒÙÐÓÒ× ÁÐÐÙ×ØÖÓÒ×ÑÒØÒÒØÐÖÐ ÔÖÐ×ÖÔØÓÒ×ÔÖÓ××Ù×Ù×ÓÒ <br />
π<br />
π − + p → π 0 ÒÖ <br />
+ n<br />
ÙÒÀÑÐØÓÒÒÔÓÙÖÐÒØÖØÓÒÒÙÐÓÒÒÙÐÓÒ<br />
Hint = U + V I1 · I2<br />
I2×ØÐ×Ó×ÔÒØÓØÐ<br />
I1ØI2××ÒØ×ÙÖÐ×ÒÙÐÓÒ×ÒÚÙÐ×ØI = I1 + ÇÒI 2 = (I1 + I2) 2 = I 2 1 + I 2 2 + 2I1 · I2 = 3 3<br />
+<br />
4 4 + 2I1 · I2<br />
<br />
I = 1 → I1 · I2 = +1/4 → Hint = U + V/4<br />
I = 0 → I1 · I2 = −3/4 → Hint = U − 3V/4<br />
± + p → π ± + p Ù×ÓÒÐ×ØÕÙ
ÑÑ×ËÓÒÚØÖ×ØØ×ÔÙÖ××Ó×ÔÒÐÑÔÐØÙØÖÒ×ØÓÒ ÔÓÒÒÙÐÓÒÒ×Ð×ØØ×ÒØÐØÒÐÙÒ×ÔÖÓ××Ù××ÓÒØÐ× ÒÓÒ×ÕÙÒÐÓÒ×ÖÚØÓÒÐ×Ó×ÔÒÐ×ÚÐÙÖ×ÁÁ3Ù×Ý×ØÑ ×ÖØÐÓÖÑ〈Ψ(I ′ ÓÁÁ3×ÖÔÔÓÖØÒØÐØØÒØÐØÁÁ3ÐØØÒÐÔÐÙ×ÐÐÑÒØ ÑØÖM 2I×ØÒÚÖÒØ×ÓÙ×ÐÖÓØØÓÒÒ×Ð×Ô×Ó×ÔÒÓÒÒÔÒ ÒØÁ3ÓM2IÁ℄ ÍØÐ×ÒØÙÒØÐÓÒØ×Ð×ÓÖÒÓÒØÖÓÙÚØÚÑÒØ ÓÒÔÙØÓÖÑÖ××Ý×ØÑ×ÖØÖ××ÔÖÙÒ×Ó×ÔÒØÓØÐ ÚÙÒÔÓÒ×Ó×ÔÒÁØÙÒÒÙÐÓÒ×Ó×ÔÒ ÓÙ<br />
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ÒÙØÐ×ÒØÐØÐÒ×ÐÙØÖÖØÓÒ ÈÓÙÖÐ×ØØ×ÔÐÙ×ÔÖ×ÑÒØÓÒÖÒ×Ò×Ð×ÔÖÓ××Ù×××Ù×ÓÒÓØÒØ <br />
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Ò×Ð×ÐÙ×ÓÒÐ×ØÕÙπ + Ð×ØÓÒØÖÒ×ØÓÒ×ÖÙØ p×ÙÐÐØØ×Ó×ÔÒØÓØÐ ×ØÓÒÖÒ<br />
ÃÓÒØÒØÐ×ØÙÖ××ÔÔ××ÔÒ Ñ××ÒØÖÔÖØÙÐ×Ö×ÐØÙÖÃ×ØÐÑÑÔÓÙÖÐ×ÖØÓÒ× ËÐÓÒÒÐÐÖÒ ÄÐÑÒØÑØÖÔÓÙÖÐ×Ó×ÔÒØÓØÐÁ×ØÖØÓÒÚÒØÓÒÒÐÐÑÒØM 2I <br />
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3<br />
2<br />
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3<br />
2<br />
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3<br />
2<br />
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1<br />
2<br />
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3<br />
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1<br />
2<br />
, I ′ 3)|M|Ψ(I, I3)〉 = δI ′ IδI ′ 3 I3 M2I <br />
<br />
, +3 = |1, 1〉 1 1 + , ≡ |π p〉<br />
2 2 2<br />
<br />
, −3 = |1, −1〉 1<br />
− , −1 ≡ |π n〉<br />
2<br />
2 2<br />
<br />
, +1 = √3<br />
1<br />
|1, 1〉 2<br />
<br />
1 2<br />
, −1 + 2 2 3 |1, 0〉 <br />
1<br />
, +1 ≡ √3<br />
1<br />
|π 2 2<br />
+ n〉 +<br />
<br />
2 , +1 = 2 3 |1, 1〉 <br />
1,<br />
−1 − √3 1 |1, 0〉 2 2<br />
<br />
1<br />
2 , +1 ≡ 2 2<br />
<br />
, −1 = √3 1 |1, −1〉 2<br />
<br />
1 1 2 , + 2 2 3 |1, 0〉 <br />
1,<br />
−1 ≡ √3 1 |π 2 2<br />
−p〉 +<br />
<br />
1 1 1 , −1 = − , + √3 |1, 0〉 <br />
1<br />
2 , −1 ≡ −<br />
Ø M<br />
2<br />
1 = 1<br />
3 |1, −1〉1 2<br />
, I3 2<br />
2<br />
2<br />
2<br />
2<br />
3 |π0 p〉<br />
3 |π+ n〉 − 1 √ |π<br />
3 0p〉 <br />
2<br />
|π + p〉 = 3<br />
, +3<br />
2 2<br />
|π−p〉 = 1 <br />
2<br />
√ 3,<br />
−1 − 1,<br />
−1<br />
2 2 2 2<br />
3 3<br />
|π0 <br />
2<br />
1 <br />
n〉 = 3<br />
, −1 + √31<br />
, −1<br />
2 2 2 2<br />
3<br />
<br />
M1, I3<br />
M 2 3 = <br />
3,<br />
I3<br />
M3 2 2<br />
3 |π0 n〉<br />
3 |π− p〉 + 1 √ 3 |π 0 n〉<br />
, I3<br />
σπ + p→π + p = K | M 3 | 2
ØÈÖÓÒØÖÒ×Ð×ÐÙ×ÓÒÐ×ØÕÙπ − ÓÑÔÓ×ÒØ×Ó×ÔÒØÓØÐ ØÙÒÓÑÔÓ×ÒØ×Ó×ÔÒØÓØÐ pÐÒØÖÚÒØÙÒ ÓÒÓÒ <br />
2 <br />
2 σπ−p→π − <br />
1<br />
p = K<br />
3 M3 + 2<br />
3 M1 ÒØÐØÐØØÒÐ×ÓÒØÖÒØ× ÁÐÒ×ØÑÑÒ×Ð×ÐÒÖÓÐ×ÔÖØÙÐ×ÐØØ<br />
σπ−p→π0n = 〈π0n|M|π− √<br />
2<br />
p〉 = K<br />
3 M3 √<br />
2<br />
−<br />
3 M1 ÇÒÒÙØÐ×ÖÔÔÓÖØ×××ØÓÒ××<br />
σπ + p→π + p : σπ−p→π −p : σπ−p→π0n :=| M 3 | 2 <br />
1<br />
:<br />
3 M3 + 2<br />
3 M1<br />
√ 2<br />
2<br />
:<br />
3 M3 √<br />
2<br />
−<br />
3 M1<br />
ÄÙÖÑÓÒØÖÐ×ÚÐÙÖ×Ñ×ÙÖ×××ØÓÒ××ÔÓÒÔÖÓØÓÒØ <br />
2 ÒÚÖÓÒ ÔÓÒÙØÓÒÒÓÒØÓÒÐÒÖËÐÓÒ×ÔÐÙÒÚÙÙÔÖÑÖÔ Ó×ÖÚ ÑÑÑØØÖÒÖ×ØÐÙÐÒ×ÓÙ×ØÖÝÒØÐ Î Ò×ÐÅÓÒØÖÓÙÚ×ÚÐÙÖ××ØÓÒ×× ×ØÓÒØÓØÐπ −  ÇÒÓÒ×ÖÔÔÓÖØ×Ñ×ÙÖ×ÒÚÖÓÒØØÒÖÐ×ÔÖÓ××Ù× Ø×ÓÒØÓÑÒ×ÔÖÐÓÖÑØÓÒÐØØÖ×ÓÒÒÒØ∆Ñ Á pÒÚÖÓÒÑÐ×ØÓÒÐ×ØÕÙÑ Î ÇÒÔÙØÓÒÑØØÖÒ××ÓÒØÓÒ×ÕÙM 3 ≫ M1 ØÒÐÖÐÓÒØÖÙØÓÒM 1Ò×Ð×ÖÐØÓÒ×ÇÒÓØÒØ ÐÜÔÖÒ ÉØÖØÖÐÑÑÓÒÐ×ÐÙ×ÓÒÒÙÐÓÒÒÙÐÓÒÒÒÐÝ×ÒØ ÐÓÖ××ÖÔÔÓÖØ×ÐÙÐ×ÒÚÖÓÒÒÓÒÓÖÚÐ×Ö×ÙÐØØ×<br />
Ð×ÖØÓÒ× p + p → π + + d, p + n → π0 + d, n + n → π− ÑÓÒØÖÖÕÙÐÖÔÔÓÖØ××ØÓÒ×××ØÖÓ×ÖØÓÒ×××ÙÖÐ ÓÒ×ÖÚØÓÒÐ×Ó×ÔÒ×Ø<br />
d +<br />
ÇÒÒØÔÒ×ÔÖÖÔ×ÙÖÐØÙÐ×ØÖÙØÙÖÒÕÙÖ×× Ä×Ó×ÔÒËÍ ØÐ×ÕÙÖ×<br />
ÕÙÚÙØÁÔÓÙÖÐÔÖØÙÐρÄÕÙÐÐ××ÒØÖØÓÒ×ÓÖØ××ØÒØÖØ<br />
ρ + → π + π0 , ρ− → π−π0 , ρ0 → π−π0 , ρ− → π−π + , ρ0 → π0π0 ÖÓÒ×ÔÖ×ÒØÙÔØÖ×ÙÖÐÑÓÐ×ÕÙÖ×
ËØÓÒ××ØÓØÐ×ØÐ×ØÕÙ×ÔÓÒÒÙÐÓÒØÔÓÒÙØÓÒ<br />
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ÔÓÒ×ÓÒØÙÒÑ××ØÖ×ÚÓ×ÒÄÖÒÑ××Ò×ØÕÙÕÙÐÕÙ× ÕÙÖ×ÙØÕÙ×ÓÒØÐ×ÓÒ×ØØÙÒØ××ÔÖØÙÐ×Ð×ÔÐÙ×ÓÑÑÙÒ×ÔÒ ÇÒÔÙØÖÖÑÓÒØÖÐÖ×ÓÒØÖÙÓÖÑÐ×Ñ×Ó×ÔÒÙØÕÙÐ×<br />
Ò×Ð×ØÖÙØÙÖ×ÖÓÒ×ËÓÒÒÐÐØ×ÒØÖØÓÒ×ÑØÐ ÙÔÓÒØÚÙÐÒØÖØÓÒÓÖØ×ÙÜÕÙÖ×ÓÙÒØÙÒÖÐÒØÕÙ<br />
ÓÖÑÒØÐ×ÐÑÒØ××ÙÒÖÔÖ×ÒØØÓÒÑËÍ ÙÑÜÑÙÑ ÄÒÙÒÕÙÖÙØÙÒÕÙÖÙÒØÐÓÖÖÕÙÐÕÙ×ÔÓÙÖÒØ×<br />
Ö Ò×ÐÓÖÑÐ×Ñ×Ó×ÔÒÔÔÐÕÙÙÜÕÙÖ×ÓÒÓÒ×ÖÕÙÙ ×Ø<br />
Ä×ÒÙÐÓÒ×ØÐ×ÔÓÒ××ÓÒØ×ÖÔÖ×ÒØØÓÒ×ÓØÒÙ×ÔÖÓÑÒ×ÓÒ ÖÕÙ×ÙØÈÓÙÖÐ×ÖÓÒ×ÓÖÑ×ÔÖÙØÖ×ÕÙÖ×ÓÑÑÔÖÜÑÔÐ <br />
Ð×ÓÒ×ÐÙØÓÙØÖ×Ö×ÐÖØ×ÙÔÔÐÑÒØÖ×ÕÙÓÒÙØ<br />
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u<br />
ÙÒÖÔÖ×ÒØØÓÒÖÔÕÙÒØÙØÚÐÐÙ×ØÖÒØÐÓÑÔÓ×ØÓÒÙÜ×Ó×ÔÒ× ÙÜ×Ó×ÔÒ×ÓØÙÜÖÐ×Ù×ÙÐÐ×ØÓÒ××ÔÒ×ÄÙÖ ×ÔÒ×ØØÑØÓÖÔÕÙ×ÖÙØÐÒ×Ð×ÙËÍÒ ÄØÓÒ<br />
ÄÔÔÐØÓÒÐÖÐØÓÒ ÙÜÕÙÖ×ÙØÓÒÒÙÒÖÐ ×Ø ÖÓÙÖÖ×ÖÓÙÔ×ÑÒ×ÓÒ×ÙÔÖÙÖËÍÒÒ><br />
1/3ÕÙÕÙÖ<br />
ÐØ× ËÐÓÒØÓÒÒ<br />
ØÖÕÙ1/6 +<br />
ÕÙÒÙØÐ×ÒØÐÑÒ×ÓÒ×ÖÔÖ×ÒØØÓÒ×ÑÁ ×Ó×ÔÒ−1/2ÇÒÔÙØÓÒ××ÓÖÐÔÖÔÒÙÒ ÓÒÓØÒØÙÒÕÙÖÙÔÐØ ØÙÜÓÙ<br />
ÚÐÙÖB= ÈÓÙÖÐÔÖÓØÓÒ×Ý×ØÑÙÙÁ3ÚÙØ1/2 +<br />
= ÐÓÒÙÖØÓÒÙÓÒÒI3 ÓÙÐØI =<br />
ÇÒÔÙØ××ÓÖÐÙÒ×ÓÙÐØ×Ù×Ý×ØÑÔÒØÐÕÙÖÙÔÐØÙ×Ý×ØÑ ×ÖØÓÖÑÐÐÑÒØ2 ⊗<br />
ÅÎÕÙ×ØÔØØÒÖÖÔÜÐÑ××ÙÔÖÓØÓÒÇÒ<br />
| mu − md | /mp = O(10 −3 ) <br />
Ð×ÝÑØÖÙ↔ÔÔÖØÐÓÖ×ÕÙÓÒÓÑÔÖÐÑ×××ÒÙÐÓÒ×<br />
p = uud , mp = 938 MeV ; n = udd , mn = 940 MeV <br />
ÄÓÒ×ØÙÒÙØÖÜÑÔÐÚÐÕÙÖ×Ò×ÐÖÐ×ÔØØÙÖ<br />
K + = us mK + = 494 MeV K0 = ds mK 0 = 498 MeV <br />
= I = 1<br />
1/2 = 2/3ØÖ×ÔØÚÑÒØ1/6<br />
1/2<br />
2 , I3 = + 1<br />
2<br />
<br />
d = I = 1<br />
2 , I3 = −1 2<br />
−1/3ÒØØÖÙÒØÐ<br />
1/2ÔÓÙÖÐÒÙØÖÓÒ<br />
− 1/2 =<br />
1/2 − 1/2 =<br />
2 ⊗ 2 = (3 ⊕ 1) ⊗ 2 = 4 ⊕ 2 ⊕ 2<br />
△ ++ , △ + , △ 0 , △ −ÓÑÔÓ×××ÕÙÖ×ÙÙÙÙÙÙØÖ×ÔØÚÑÒØ
−1/2<br />
=<br />
+1/2<br />
2<br />
2 2<br />
3 1<br />
4 2<br />
<br />
+<br />
+<br />
ÙÒ×Ó×ÔÒÙÓÑÔÓ×ØÓÒÙÜ×Ó×ÔÒ× ØÙÒ×Ó×ÔÒ ÖÓØÓÑÔÓ×ØÓÒ<br />
I I<br />
3<br />
3<br />
−1 −1/2 0 1/2 1<br />
−3/2 −1 −1/2 0 1/2 1 3/2<br />
Ä×ÖÒØ×ØØ×ÖÙ△ÓÒØ×Ñ×××ØÖ×ÔÖÓ×ÒÚÖÓÒ ÅÎÈÓÙÖ×ØÒÙÖÐÒÙ△ 0ÔÜÐÙØÖÖÜÔÐØÑÒØÐÓÑÔÓ×ØÓÒ ËÍ ØÖÔÐØ×ÔÓÒ×ØÐηÓÑÑÒØÐÔÓ×ØÓÒÙ×ÒÙÐØ ÁËÐÓÒØÓÒÒÙÒÕÙÖØÙÒÒØÕÙÖÓÒÔÙØÓÖÑÖÙÒØÖÔÐØ×Ó×ÔÒ ×ÙÜÖÓÒ×ÕÙ×ÖØÒ×ÐÔØÖ×ÙÖÐÑÓÐ×ÕÙÖ×<br />
ÓÒ×ÖÓÒ×ÑÒØÒÒØÐ×Ý×ØÑÙÓÒÒ××Ð×Ó×ÔÒÒ×ÔÔÐÕÙ ØÙÒ×ÒÙÐØ×Ó×ÔÒÁ Ò×ÐÒØÙÖÓÒØÖÓÙÚØÚÑÒØÐ<br />
ÕÙÙÜÓÑÔÓ×ÒØ×ÙØÐÓÑÔÓ×ÒØ××ØÓÒ×ÖÖÔÖØÒÒÐÙÒØ ÐØÖÒØÐÖÐØÓÒ ÚÒØ<br />
Q = 1<br />
2 (B + S) × + I3 = 1<br />
Y×ØÔÔÐÐhypercharge×ØÐÖÝÒØÖÐÖÙÑÙÐØÔÐØ <br />
Y × + I3<br />
2 Ä×ñÓÒØBØS= ± ÓÒQ = (0 ± 1)/2 ± 1 ÓÒ×ØØÙÒØ×ÓÒ<br />
±1ÈÓÙÖÐ×ÕÙÖ×<br />
= 2<br />
<br />
u<br />
Q =<br />
d<br />
1<br />
<br />
1<br />
+ 0 ±<br />
2 3 1<br />
2 =<br />
<br />
+2/3<br />
, Q(s) =<br />
−1/3<br />
1<br />
<br />
1<br />
− 1 + 0 = −<br />
2 3 1<br />
ÒÓÑÔØÐÒ×ÑÐ××ÚÙÖ×ÕÙÖÙËÅ ÇÒÔÙØ×ÐÓÖ×ÒØÔÖÐÓÖÑÕÙÔÖÒÐÓÔÖØÙÖQÕÙÒÓÒÔÖÒ 3<br />
Q = 1<br />
2 (B + S + Cha. + Bot. + Top.) × + I3, <br />
<br />
avec :<br />
=<br />
2<br />
3<br />
3 2
ChaÖÑ<br />
BotÓØØÓÑÒ××<br />
TopÌÓÔÒ××<br />
ÔÓÙÖÐ×ÔÖØÙÐ×Ò×ÖÒÐ×ÐÙÖÒØÔÖØÙÐÁÐ×ØÓÒÔÖØÙÐ× ÇÒÚÙÕÙÐÓÔÖØÙÖÓÒÙ×ÓÒÖCÒ×ÓÒØÓÒ×ÔÖÓÔÖ×ÕÙ ÙØÖÔÖØÓÒ×ÒØÒØÐÒØÓÒY = ÄÔÖØG<br />
ÒÙØÖ×ÓÑÑÐπ 0 C|π0 〉 = Cπ0|π0 〉 = +1|π0 −ØÚÚÖ× <br />
〉<br />
ÖÓØØÓÒ¦Ò×Ð×Ô×Ó×ÔÒÔÖÜÑÔÐÙØÓÙÖÐÜÝ××Ó<br />
ÈÖÓÒØÖÙÒπ +×ØØÖÒ×ÓÖÑÒπ<br />
Á2ÓÒÙÖØÔÙÓ×ÖÐÜÜ××ÓÁ1<br />
−ÓÒÔÙØØÙÖÙÒ Å×ÐÝÙÒÙØÖÓÒØÖÒ×ÓÖÑÖÙÒπ<br />
ÐÓÔÖØÓÒÔÓÙÖØÒÖÐ×ÒÁ3ÄÔÔÐØÓÒÊ2(π)ÐØØ<br />
+Òπ<br />
0〉 = (−1) I ÉÑÓÒØÖÖ <br />
|I, 0〉<br />
×ØÔÔÐÐÔÖØÓÙÙ××Ð×ÓÔÖØ ÇÒÓØÒØÔÓÙÖÐ×ÔÓÒ×ÒÙØÖ× ÇÒÒØÐÓÔÖØÓÒÓÑÒG =<br />
ÔÓÒ×ÖØÖ×ÓÒÔÖ ÈÓÙÖÐ×ÔÓÒ×Ö×ÓÒÙÒÐÖØÓÜÐÔ×ÕÙÐÓÒÙØÐ× ÓÒÓØÒÖÐÑÑÚÐÙÖÔÖÓÔÖ−1ÕÙÔÓÙÖÐÔÓÒÒÙØÖÄÑÐÐÙ<br />
<br />
<br />
|I1, I3 = 0〉ÓÒÒ<br />
R2(π)|I,<br />
B + S<br />
C|π + 〉 = |π − 〉 <br />
C|π − 〉 = |π + 〉<br />
R2(π) = exp(iπI2) <br />
C R2(π) <br />
G|π 0 〉 = C R2(π)|π 0 〉 = C R2(π)|I = 1, I3 = 0〉 = C(−1) 1 |1, 0〉<br />
= −C|1, 0〉 = −C|π 0 〉 = −|π 0 〉<br />
G|π〉 = Gπ|π〉ÓGπ = −1
ÒÙØÖ×ÓÒ ×ØÙÒÒÓÑÖÕÙÒØÕÙÑÙÐØÔÐØÔÓÙÖÙÒ×Ý×ØÑÆÔÓÒ×Ö×ÓÙ<br />
GN = (−1) N Ò××Ø ÙÒÓÒÒÖÐÐ×Ñ×ÓÒ××Ò×ØÖÒØ×Ò×ÖÑ×Ò×ÓØØÓÑ ×ÓÒØ×ØØ×ÔÖÓÔÖ×ÚÐ×ÚÐÙÖ×ÔÖÓÔÖ× <br />
ÓC0×ØÐÔÖØCÐÐÑÒØÒÙØÖÙÑÙÐØÔÐØ×Ó×ÔÒ ×ØÓÒ×ÖÚÒ×ÐÒØÖØÓÒÓÖØÔÖÓÒØÖ×ØÚÓÐÒ×Ð×Ò <br />
ÜÑÔÐ× ÓÖØρ→ππ×ØÔÖÑ×ÖÐÒ×ÑÐÙÜÔÓÒ×ÙÒÔÖØÔÓ×ØÚ ØÖØÓÒ×ÐØÖÓÑÒØÕÙØÐÁÐÐÙ×ØÖÓÒ×ØØÔÖØÓÒÔÖÕÙÐÕÙ×<br />
ÈÖÓÒØÖÐ×ÒØÖØÓÒÓÖØÙρÒÙÒÒÓÑÖÑÔÖÔÓÒ××ØÒØÖØ<br />
−1ÓÒρ Ä×ÒØÖØÓÒ<br />
ÔÖÓÔÖÚÐ×ÚÐÙÖ×ÔÖÓÔÖ× ÆÓÙ×ÚÓÒ×ÚÙÕÙÐÔÖÖÑÓÒÒØÖÑÓÒÙÒÓÒÙ×ÓÒÖ Ä×Ý×ØÑÒÙÐÓÒÒØÒÙÐÓÒÓÖÑÙÒ×ÓÑÙÐØÔÐØÁÁÐ×ØÓÒÙÒØØ<br />
= ÄÑ×ÓÒρ×ØÖØÖ×ÔÖÁ0<br />
ÒÓÒ×ÕÙÒÐÓÒ×ÖÚØÓÒÐ×Ý×ØÑNNÒ×ÐØØÑÓÑÒØ ÓÖØÐÄ×ÒÒÐÒÙÒÒÓÑÖÑÔÖÔÓÒ××Ë×ÒÙÐØ×ÔÒØ <br />
ÔÖ×ÒØÐÒØÖØÒÖ×ÓÒÐÓÒØÖÒØ×ÐØÓÒÕÙÐÒØÖÓÙØÒ× ÒÙÒÒÓÑÖÔÖÔÓÒ××ËØÖÔÐØ×ÔÒ ÖØÒ×ÔÖÓ××Ù×ÓÙÚÖÒ×ÔÖÐÒØÖØÓÒÓÖØ ÇÒÚÓØÕÙÐÒØÖÙÖ×ÐÑØ××ÓÒÑÔÔÔÐØÓÒÐÓÔÖØÙÖ<br />
×ÖÑÓÒ×ÒØÕÙ×ÓÑÑÐ×ÐØÖÓÒ×ÐØÓÑÄØÓÖÑÕÙ××Ó ÄÔÖÙÖ×ÙÖØÓÖÑ×ØÐÔÖÒÔÜÐÙ×ÓÒÈÙÐÕÙ×ÔÔÐÕÙ ÄØÓÖÑ×ÔÒØ×ØØ×ØÕÙ<br />
Ù×ÐØÐ×Ñ×××ÒØÖÙÜÔÖØÙÐ×ÒÔÙÚÒØÔ××ÔÖÓÔÖÔÐÙ× ×ÔÒØ×ØØ×ØÕÙØÒÓÒÔÖËÛÒÖÒÐ×ÐÝÐÔÖÒÔ ÚØÕÙcÄÖÐ×ØÐ×ÙÚÒØ<br />
Ò×ØÒÐ×ÔÖØÙÐ××ÔÒÑÒØÖÖÑÓÒ×ÐÐÖÑÖ Ð×ÔÖØÙÐ××ÔÒÒØÖÐ×Ó×ÓÒ××ÓÒØ×ÓÙÑ×Ð×ØØ×ØÕÙÓ×<br />
ÁÎÎÓÖÔÖÜÃÓØØÖÎÏ××ÓÔÓÒÔØ×ÓÈÖØÐÈÝ××ÎÓÐÁÁÔÔÒÜ<br />
(−1) L+S<br />
G = (−1) I C0<br />
G = (−1) I+L+S = (−1)(−1) L+S
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Ä×ÓÒØÓÒ×ÓÒÕÙÖÚÒØÐ×Ý×ØÑ Ò×ÐÑÑÓÒÙÖØÓÒÕÙÐÚØÒ×UØÖÔÖÓÕÙÑÒØÔÓÙÖÐ ØØÕÙÐÙ×ÙÐÔÙØÐÖÐ×ØÕÙØØ×ÍÒÔØØÐÖÖÙÒ<br />
′Ð×ÙÜÔÖØÙÐ×ÓÒØØÒ×ÐÜØÑÒØ ÙØÖÙÒÚÖ×U ′Ò×U Ò×U ′ØÒ×U×ÓÒØ ÔÖØÙÐ××ÓÒØ×ÖÑÓÒ× ÑÑ×Ò×Ð×ÙÜÔÖØÙÐ××ÓÒØ×Ó×ÓÒ×Ø×ÒÓÔÔÓ××Ð×ÙÜ<br />
+ΨÔÓÙÖÐ×Ó×ÓÒ× <br />
ÔÖØ×ÓÖÖ×ÔÓÒÒØÙÜÖ×ÐÖØ×ÒØÖÒ××ÔÒ×Ó×ÔÒÓÙÐÙÖ ÄÓÒØÓÒÓÒÙÒ×Ý×ØÑ×ØÓÑÔÓ××ÔÖØ×ÔÐØ× <br />
Ψ → Ò1 ←→<br />
ÔÓ×ØÓÒÒÓÑÖ×ÕÙÒØÕÙ×ÐÔÖØÙÐ×ÙÖÐÔÖØÙÐØÚØÚÖ× ÄÒÙÜÔÖØÙÐ×Ù×Ý×ØÑ×ÒØÖÒ×ÔÓÖØÖÐ×ÒØØÙÖ×<br />
...<br />
χ(×ÔÒ)i t(×Ó×ÔÒ)i<br />
ÓÙÒØÕÙ×ÇÒÓØÒØÐ×ØØ×Ù×Ý×ØÑ×ÙÜÔÖØÙÐ×ÒÓÖÑÒØ ×Ó×ÓÒ×ÓÙ×ÖÑÓÒ×ÔÖÓÖÐÔÙØ×ÖÓ×ÓÒ×ÖÑÓÒ×ÖÒØ× ÔÔÐÓÒ×ψaÐÓÒØÓÒÓÒÕÙÖÔÖ×ÒØÐØØÐÔÖØÙÐaØψbÐ ÓÒØÓÒÓÒÕÙÖÔÖ×ÒØÐØØÐÔÖØÙÐb×ÔÖØÙÐ×ÔÙÚÒØØÖ<br />
ÖÒØ××ØÙÖ×ÐÔÝ×ÕÙÈÓÙÖ×ÜÑÔÐ×ÔÔÐØÓÒ×ÒÔÝ×ÕÙ ÙÔÖÒÔÈÙÐÄ×ÓÒ×ÕÙÒ×ØÓÖÑ×ÓÒØÒÓÑÖÙ××Ò×Ð×<br />
ψbÓÒΨÖÑÓÒ×=0ÇÒ×ØÖÑÒ<br />
Ð×ØØ×ØÕÙÓ××ÙÖÐÑ××ÓÒÔÓÒ×Ò××ÓÐÐ×ÓÒ×ÙØÒÖ ×ÔÖØÙÐ× ÁÐÙØÙ××ÑÒØÓÒÒÖÐ×ØÒØØÚ×ÖÒØ×ÑØØÖÒÚÒÐ×Ø×<br />
= ËÐ×ØÙÜÖÑÓÒ×ÒØÕÙ×ψa<br />
×ÓØÑÓÔÖÐ×ØØ×ØÕÙÓ×<br />
ÖÑÒØØÓÒÖ×ØÖÒØÓÒ×ØØÒÕÙÐ×ØÖÙØÓÒÒÙÐÖÖÐØÚ ÈÓÙÖ×ÔÓÒ×ÒØÕÙ×ÑÑÖÕÙ×ÓÒØÑ×Ò×ÙÒÖÓÒ×<br />
2 :<br />
Ψ → −ΨÔÓÙÖÐ×ÖÑÓÒ×<br />
<br />
ψi = ψ(×Ô)i<br />
Ψ(x1, S1, I1; x2, S2, I2) −→ ±Ψ(x2, S2, I2; x1, S1, I1)<br />
ΨÓ×ÓÒ×= 1 ΨÖÑÓÒ×= 1<br />
Ψ(1, 2) −→ ±Ψ(2, 1)<br />
√ 2 (|ψa〉 1 |ψb〉 2 + (|ψb〉 1 |ψa〉 2 )<br />
√ 2 (|ψa〉 1 |ψb〉 2 − (|ψb〉 1 |ψa〉 2 )
q<br />
q<br />
ÈÖÓÙØÓÒÖÓÒ×ÔÖÖÑÒØØÓÒÒ×ÐÔÖÓ××Ù×e + e− qÄÖÑÒØØÓÒÙÒÔÖÕÙÖÒØÕÙÖ××ÙÙÒÓÐÐ×ÓÒÐØÖÓÒ ÔÓ×ØÖÓÒÒÖ×Ø×ÖÓÒ×ÚÓÖÙÖ ÙØÓÒ×ÒÐ×αÒØÖÐ×ÔÖ×ÔÓÒ×Ö×ÑÑ×ÒØ×Ò×<br />
→<br />
ÓÔÔÓ××ÈÓÙÖÕÙÐØÓÒÒ×ØÓÒÐ×ØØ×ØÕÙÓ××ÓØØÐ ÇÒ×ÒØÖ××Ð×ØÖ<br />
q +<br />
ÐÙÖÓÒØÓÒÓÒ ØÒÓÒÒÙÐÐÓÖ×ÕÙÐ×ÙÜÔÖØÙÐ×ÓÒØÙÒÕÙÒØØÑÓÙÚÑÒØÔÖÓ ÙØÕÙÐ×ÔÖØÙÐ×ÔÖÓÚÒÒÒØÐÑÑ×ÓÙÖÇÒ×ØØÒÓ×ÖÚÖÙÒ ÒÑÓÙÐØÖØÓÒÓÒÔÖ×ÕÙÙÖÔÓ×Ò×ÐÙÖÑÐÖÖÓÙÚÖÑÒØ ÒÔÖØÕÙÓÒÓÒ×ÖÙÒÓÒØÓÒÓÖÖÐØÓÒ<br />
R(p1, p2) = σ(p ÕÙÓÒÔÖÑØÖ×ÔÖÐÓÒØÓÒ 1, p2) σ(p1)σ(p2) R(Q) = 1 + λ exp(−r 2 Q 2 <br />
) ÓQ 2 = (p1 + p2) 2 − 4m2 π = M2 ÐÑÔÓÖØÒÐÓÖÖÐØÓÒ ÙÐ×ÔÖÓ×rÖÔÖ×ÒØÐ×ÑÒ×ÓÒ×ÐÖÓÒ×ÓÙÖÒÒλÑ×ÙÖ<br />
ÔÖÓÚÒÖÓÖÖÐØÓÒ×Ö×ÙÐÐ×Ò×ÐÒØÐÐÓÒÖÖÒÐ×ÚÐÙÖ× ÔÓÒ×Ö×ÑÑ×ÒØ×Ò×ÓÔÔÓ××ÈÓÙÖÐÑÒÖÐ×ÔÓÙÚÒØ Ä×ÙÖ×N±±(Q)/N+−(Q)ÓN±±ØN+−×ÓÒØÐ×ÒÓÑÖ×ÔÖ× Ø ÑÓÒØÖÒØÐÖ×ÙÐØØÜÔÖÒ×ÙÄÈÒ×Ð<br />
ππ − 4m2πÙÒÔØØQ ÖÐÓÔÐÙ×ÐØÙÖÓÖÖÖÔÖ×ÒØ×ÓÖÖØÓÒ×ÔÓÙÖ×Ø×ÓÙÐÓÑ<br />
R±Ò×Ð×ÓÒÒ×ÓÒØØÖÔÔÓÖØ×ÐÐ×ÔÖØ×ÔÖ×ÑÙÐØÓÒÅÓÒØ ÙÖR±(Q)<br />
ÐÓÖÒ×ØÓÑÔØÐÚÙÒÖÖÓÙÔÑÒØÑÔÓÖØÒØ×Ó×ÓÒ×ÒØÕÙ× Ò×ØÔÓÙÖÐÓÒØÑÒØÓÒÒÔÖ×ÑÐÒØ×ÄÙÑÙÐØÓÒÔÖ×<br />
=<br />
ÄÖ×ÙÐØØÐÙ×ØÑÒØÓÒÒr=0.8ÑÔÓÙÖÐÔÖØÐ×ÓÙÖ ÐÒØÖÔÖØØÓÒÐØ×ØÒÓÖÒÖØÒ<br />
ØÔÖÐØÄÔÖÑØÖÓÖÖÐØÓÒλ×ØÐ×ÙÖÙÒÔÐÑÔÓÖØÒØ<br />
α<br />
p<br />
2ÓÖÖ×ÔÓÒ×ÔÖØ<br />
1<br />
p 2
ÊÔÔÓÖØÙÒÓÑÖÔÖ×ÔÓÒ×ÑÑ×ÒØ×Ò× ÓÔÔÓ××ÒÓÒØÓÒÐÚÖÐQ=(M2 ØÚ×ÙÜÔÓÒ×<br />
ππ − 4m2 π )1/2ÓMππ×ØÐÑ××<br />
ÌÐÐÐÖÓÒ×ÓÙÖØÒÓÒØÓÒÙÔÖÑØÖÓÖ<br />
ÖÐØÓÒÓÑÔÖ×ÓÒ×Ö×ÙÐØØ×ÖÒØ×ÜÔÖÒ×ÙÄÈØÔÓÖØÒØ<br />
×ÙÖ×ÔÖ×ÔÓÒ×Ø×ÔÖ×ÓÒ×
ÄÒØÖØÓÒÐØÖÓÑÒØÕÙÑ<br />
ÄÖÔÐÙÖ ÁÒØÖÓÙØÓÒ<br />
ÐÒØÖØÓÒÑÄÔÖÓ××Ù×Ò×ØÔÓ××ÐÕÙ×Ð×ÔÖØÙÐ××ÓÒØÖ× ÓÙ×ÐÐ××ÓÒØÓÑÔÓ××ÔÖØÙÐ×Ö×ÒÕÙÐÓÐÑÒØÒÙØÖ× ÙØÖÄÕÙÒØÙÑÖ×ÔÓÒ×ÐÙÔÖÓ××Ù××ØÙÒÔÓØÓÒ×ØÖÐÕÙÒØÙÑ ÖÔÖ×ÒØÐÙ×ÓÒÑÙÒÔÖØÙÐ×ÙÖÙÒ<br />
ÙÒÖÒÙÐÐÑ×ÙÒÑÓÑÒØÑÒØÕÙÒÓÒÒÙÐ ØÐÒØÖØÓÒÑÚÓÖÐÙÚÐÓÑÔÓ×ÒØÑÒØÕÙÔÜÐÒÙØÖÓÒ Ò×ÖÒÖ×Ð×ÔÖØÙÐ×ÔÙÚÒØÚÓÖÙÒÑÓÑÒØÑÒØÕÙÒÓÒÒÙÐ<br />
temps<br />
c<br />
pc p<br />
d<br />
d<br />
q<br />
"1" "2"<br />
ÆÓÙ×ÚÓÙÐÓÒ×ÐÙÐÖÔÜÐÔÖÓÐØÕÙÐÔÖØÙÐ ÖÑÑÐÙ×ÓÒÑÙÜÔÖØÙÐ×Ö×<br />
pa p<br />
ÕÙÚ<br />
b<br />
a<br />
b<br />
×ÓØÙ×Ò×ÐÒÐ×ÓÐ∆ΩÁÑÒÞÙÒÜÔÖÒÒ×ÐÕÙÐÐ<br />
×ÐØÖÓÒ××ÙÖÐÐÄØØÙÖ×ÐØÖÓÒ××ØÔÐ×ÓÙ×ÐÒÐ ØÐÔÖØÙÐ ÙÖÔÓ×Ò×ÐÖÖÒØÐÙÐÓÖØÓÖÍÒÒ×ÑÐÑÒØ×ÓÐ×ÒØÐ ÐÔÖØÙÐ ÙÒÐØÖÓÒÔÔÖØÒÒØÙÒ×ÙÄ×ÒÓÝÙÜÐ×ÓÒØ ×ØÙÒÒÓÝÙÖÔÔÖØÒÒØÙÒÐÜ<br />
ØÓÙÔÖÐ×ÙÄØÙÜ×ÐØÖÓÒ×Ù××Ò×ÐØØÙÖ×ØÓÒÒ<br />
θÔÖÖÔÔÓÖØÐÜÙ×ÙØÓÙÚÖÐÔÓÖØÓÒÒÐ×ÓÐ∆ΩÄÙÜ<br />
ÔÖ ØÚbÐÙÖÚØ××ËÓØÆÐÒÓÑÖÒÓÝÙÜÓÒØÒÙ×Ò×ÐÔÓÖØÓÒÐÐ ÐØÖÓÒ×ÒÒØ××ØÁbÒbÚbÓÒb×ØÐÒ×Ø×ÔÖØÙÐ×Ò×Ð×Ù<br />
<br />
ÇÒØÐÝÔÓØ×ÕÙÐØØÙÖ×Ø×Ò×ÐØÓÙØÐÑÑ×ÒÖ×<br />
<br />
dσ(θ)<br />
∆W = IbN dΩ , dΩ = sinθ dθ dφ<br />
dΩ<br />
∆Ω<br />
Ódσ(θ)<br />
××Ð×ÐÔÖØÙÐÙ×ÐÒ×Ø×ÓÙÚÒØÔ×Ð×ÖÐÝÙÒ×ÙÐ <br />
dΩ×ØÐ×ØÓÒÖÒØÐÐÙ×ÓÒÑ×ÓÙ×ÐÒÐθ
ÓÑÔØÔÜÙ×ÙÖÙØÓÒÓØÐÓÖ×ÒØÖÓÙÖÙÒÒØÖØÓÒ<br />
Ù×ÙÄØÖÑdσ/dΩÒÐÙØÐØ××ÔÒ××ÔÖØÙÐ×Ø<br />
φ×ØÐ×ÔÓÙÖÙÒ×ÙÒÓÒÔÓÐÖ×ØÔÓÙÖÙÒØØÙÖÒ×Ò×ÐÐ ÔÓÐÖ×ØÓÒ×ÔÖØÙÐ×Ù××ÇÒÙ××ÒØÖ×ÙÖÐ×ÔÖ×ÓÒÒÒÖ ÇÒÙ××Ñ×ÕÙÐØÙÜÖØÓÒÒÔÒÔ×ÐÒÐÞÑÙØÐ<br />
Ò×ØÜÑÔÐÐ×ØÓÒØÓØÐσ×ÖØÓØÒÙÒÒØÖÒØ<br />
×ÙÔÔÐÑÒØÖÙØÝÔ Emax<br />
Ñ2ÓÙÐÙÒ×××ÓÙ×ÑÙÐØÔÐ×ÑµÒ ÚØ×××ÚÓÐÙÑ−1×ÙÖÄÙÒØÙ×ÙÐÐ×ØÐÖÒ σÐÑÒ×ÓÒ<br />
Ä×ÖØÖ×ØÕÙ×ÔÝ×ÕÙ×ÙÔÖÓ××Ù××ÓÒØ××ÒØÐÐÑÒØÓÒØÒÙ×Ò× ÖÑÄØÙÖÒ×ØØØÓÙ×ÔÔ××ØÓÒÒÒ×ÐÒÒÜ Ä×ÔÖØÓÒ×ØÓÖÕÙ×Ð×ØÓÒ×ÓÒØ×××ÙÖÐÖÐÓÖ<br />
×ÙÖÐÒÐ×ÓÐπÈÙ×ÕÙÐØÙÜÏÐÑÒ×ÓÒØÑÔ×−1 −24 ØÑÔ×−1<br />
Ò×ÐÑÐÖØÓÒÓÒÓØÒØ <br />
Stat×ØÙÒØÙÖ×ØØ×ØÕÙÕÙÚÙØ ×Ð×ÙÜÔÖØÙÐ×ÐØØÒÐ ×ÓÒØÒØÕÙ×ÖÒØ×ÇÒÔÔÐp<br />
ÐÑÑÖÓÒ×ÔØÑÔ×ÒØÖÑ×ÕÙ×ÑÒÕÙÕÙÒØÕÙÐÙÖ× ÔÓÙÖÕÙÐÙ×ÓÒØÐÙÐÙØÕÙÐ×ÙÜÔÖØÙÐ××ÓÒØÔÖ×ÒØ×Ò× ×Ò×ÐÒØÖØÓÒÑÇÒÔÙØÚÒÖÐ×ÓÑÔÓ×ÒØ×ÒÙÙÒÔÖØ ÖÓÒ×ÑÒØÒÒØÜÔÐØÖÐÓÖÑM×ÙÖÐ×ÒÓ×ÓÒÒ×<br />
1 ÈÓÙÖÐ×ÙÒÙ×ÓÒÐ×ØÕÙ| p<br />
ÔÓÙÖÕÙÙÒÖØÒÕÙÒØØÕÙÖÑÓÑÒØ×ÓØØÖÒ×Ö×ÓÙ×ÓÖÑÙÒ ÔÓØÓÒÚÖØÙÐÄÜÔÖ××ÓÒMÓØÓÒÓÒØÒÖÙÒÒØÖÐÙÔÖÓÙØ× ÓÙÖÒØ×ÔÖÓÐØÓÚÒØ×ÖÓ×ÖÔÒÒØÙÒØÑÔ××Ù×ÑÑÒØÐÓÒ<br />
ØÓÒØÒØØÝÔÑÙÒØÖÑÔÖÓÔÓÖØÓÒÒÐÐÖÕÙÔÖØÙÐ ÓØØÖÒØÖÓÙØÓÑÑØÙÖÑÙÐØÔÐØÕÙÕÙÖÔÖ×ÒØÖÓÒØÐ ÓÙÖÒØÑ ÙÜÒ×Ø×ÓÙÖÒØÔÖÓÐØM ∝<br />
ÈÓÙÖÖÓÒÒ×ÖÙÒÓÒØÓÒÕØÖÑÒÖÒ×ÐÜÔÖ××ÓÒÐÑ<br />
d 4 <br />
x(jac)f(q)(jbd)<br />
Eseuil<br />
ÐÐÑÒØÑØÖÓÙÑÔÐØÙØÖÒ×ØÓÒM<br />
dσ = 2π<br />
|M|2 d×ÔÔ× ×<br />
dσ<br />
dΩ =<br />
2 c Stat<br />
8π (Ea + Eb) 2<br />
| p2 |<br />
| p1 | × | M |2 <br />
|ØÓÒÔÙØÒØÖÓÙÖ<br />
≡ pa = −pb p2 ≡ pc = −pd 1 |=| p2 Ei = Ea + Eb<br />
ÁÐÖ×ØÒÐÙÖÐÔÓØÓÒÚÖØÙÐÒÖØÖ×ÔÖÐÕÙÖÚØÙÖ<br />
q µ = (pa − pc) µ = (pd − pb) µ <br />
ÔÐØÙÕÙÔÖÒÐÓÖÑ<br />
M = αeacebd<br />
<br />
d 4 xj1j2ÙØÖÔÖØÐÒØÖ
α×ØÙÒØÙÖÕÙÖÔÖ×ÒØÐÓÖÙÓÙÔÐÑi×ÓÒØÐ×Ö×× ÔÖØÙÐ×Ø ÒØÖÙÜÓÙÖÒØ×ÐØÖÕÙ× ÄÖÐØÓÒÔÙØØÖÓÑÔÖÐÜÔÖ××ÓÒÐ××ÕÙÐÒØÖØÓÒ<br />
Ä×ÓÙÖÒØ×acØbd×ÓÒØ×ÚØÙÖ×ØÕÙÒ×ÐÖM×ØÓÒ ÄÜÑÒÐÖÐØÓÒÔÔÐÐÕÙÐÕÙ×ÖÑÖÕÙ×<br />
ÄÜÔÖ××ÓÒM×Ø×ÝÑØÖÕÙÒacØbdØÔÒÐÖ ÙÒÑÔÐØÙÒÚÖÒØÄÓÖÒØÞ ÒÒØÖÚÒØÕÙÒ×Ð×ØÙÖ×ÒÑØÕÙ××ÔÔ× ÔÓÖØÔÖÕÙÔÖØÙÐÍÒÖÒÑ××ÒØÖ×ÔÖØÙÐ×<br />
ÙØ×ÝÑØÖ×ÖÓÙÒØ×ÝÑØÖ×ÖÐÑÔÐØÙ×ÐÓÒÐÒØÙÖ×ÔÖØÙÐ× ËÐ×ÔÖØÙÐ××ÓÒØÒØÕÙ×ÐÙØÖÒØÖÚÒÖ×ÖÑÑ× Ó×ÓÒ×ÓÙÖÑÓÒ× ÖÓ××ÖÓÒÒÔÙØÔ××ØÒÙÖÐ×ØÖØÓÖ×ØÔÐÙ×Ð<br />
×ÙÔÔÓ××ÔÓÒØÙÐÐ×Ø×Ò××ÔÒÔÖÜÑÔÐÓÒÚÒÓÒ×ÕÙ ÄÒØÖØÓÒÑÙÔÖÑÖÓÖÖÔÖØÙÖØÓÒ<br />
ÔÓ×ØØ×ØÙÒÓÒÔÓ×Ø×ÙÔÔÓ×××Ò××ØÖÙØÙÖ Ë×ÔÖØÙÐ×Ô×ÙÓ×ÐÖ××ÔÖÓÔÒØÐÖÑÒØØÚÙÒÒÖ Ø≡ÖÒØ× ×ØÙÒÔÓÒ ÎÓÖÖÓÒ×ÖÓÒ×Ð×ÙÜÔÖØÙÐ×≡<br />
Æ×ØÙÒØÙÖÒÓÖÑÐ×ØÓÒÕÙÐÓÒ×ÙØÒ×ÐÒÒÜ ÓÖÑ×ÑÔÐÙÒÔÓØÒØÐÓ×ÐÐÒØÎØexp(−iωt)ÒÔÖ×ÒÐÒØÖØÓÒ ÈÓÙÖÙÒÒØÖÓÙØÓÒÙ×ÙØÑÒÓÒ×ÐÒØÖØÓÒÑÖÔÖ×ÒØÔÖÐ ×ÓÒØ××ÓÐÙØÓÒ×ÐÕÙØÓÒÃÐÒÓÖÓÒ Ä×ÓÒØÓÒ×<br />
ÐÕÙØÓÒÃÐÒÓÖÓÒÚÒØ (✷ + m 2 ××ÓÐÔÖØÙÖØÓÒÎ×ØÓÒÒÔÖ ÍÒÖ×ÙÐØØÐØÓÖÔÖØÙÖØÓÒ×ØÕÙÙÔÖÑÖÓÖÖÐÑÔÐØÙ <br />
)Ψ = −V (t)Ψ<br />
ËÐÓÒÖÑÔÐÒ× ÓÒ×ÖÕÙÐÔÖØÔÒÒØÙØÑÔ×ÐÒØÖÐÒ× ΨaØΨcÔÖÐÓÒØÓÒÓÒ Ø×ÐÓÒÒ ÚÒØ <br />
V Ψa<br />
Ð×ÔÖØÙÐ××ÓÒØÖØ×ÒÓÖ×ÐÖÓÒÒØÖØÓÒ <br />
ÒÐÙÖÓÒØÓÒÓÒ×ÖØ<br />
Ψi = Ni exp(−ipix) i = a, b, c, d <br />
<br />
d 4 xΨ ∗ c V Ψa ∝<br />
<br />
<br />
M = −i d 4 xΨ ∗ <br />
c<br />
dt exp{i(Ec − ω − Ea)} = 2πδ(Ec − ω − Ea)
ÒØØÕÙÐÓÒÔÔÐÕÙÐÓÒÚÒØÓÒÝÒÑÒÕÙÒØÐÒØÔÖØÙÐ ÒØÚÚÓÖÙÖ ÝÒØÙÒÒÖÔÓ×ØÚÚÙÒÔÖØÙÐÖÑÓÒØÒØÐØÑÔ×ÝÒØÙÒÒÖ ÊÑÖÕÙÞÕÙÐÓÒÓØÒØÙÒÖ×ÙÐØØÒØÕÙ×ÐÓÒÓÒ×ÖÙÒÔÓÒ = Ea+ω ÇÒÓÒÙÒØÖÒ×ÖØÒÖÙÔÓØÒØÐÚÖ×ÐÔÖØÙÐØÐÕÙEc<br />
π<br />
E0<br />
π−<br />
ØØ×ÒØÐØÒÐÓÒÔÖÐ×ÓÙÚÒØØØ×ÒØÖØ×ÓÖØÓÒÒ ÙÒÖ×ÙÐØØÜÔÖÑÒØÓÖÖØÑÒØÐÓÒ×ÖÚØÓÒÐÒÖÜÖ ÑÑÓÒÓØÒØÙÖ ÔÓÙÖÐÖØÓÒÔÖ×ÐÖ×ÙÐØØ<br />
i)ØÐÒ×<br />
<br />
= (Ei, p ÄÒÚÖ×ÓÒ×ÕÙÖÚØÙÖ×pi i) → (−Ei, −p<br />
<br />
d 4 xΨ ∗ π +×ÓÖØV Ψπ +ÒØÖe <br />
= d 4 xe +iEπ +t<br />
ÙÜÔÓÒ×ÐÔÖÖ ÄÒÖωÓÑÑÙÒÕÙÔÖÐÔÓØÒØÐÒØÖØÓÒ×ÖÔÖØØÒØÖÐ× ÆÓÙ×ÔÓÙÚÓÒ×ÑÒØÒÒØØÒÖÐ×ÓÒ×ÖØÓÒ×××Ù×Ù×ÐÒ<br />
−iωt −i(−E<br />
e e π−)t ∝ 2πδ(Eπ + − ω + Eπ−) ØÖØÓÒÑÖØÔÖÙÒÕÙÖÔÓØÒØÐA µËÐÓÒØÙÐÖÑÔÐÑÒØ ÓÙÔÐÑÒÑÐ∂ µ → ∂ µ +ieA µÒ×ÐÕÙØÓÒÃÐÒÓÖÓÒÓÒÓØÒØ<br />
(✷ + m 2 )Ψ = −ie(∂µA µ + A µ ∂µ)Ψ + e 2 (A µ ) 2 ÉÑÓÒØÖÖÐÕÙØÓÒ ÇÒÔÙØØÒØÖÙÒÔÖÑÖÔÔÖÓÜÑØÓÒÒÐ××ÒØ ØÐØÖÑÒ <br />
Ψ<br />
(A µ ) 2ØÒÖÑÔÐÒØÒ×ÐÕÙØÓÒ ÎÔÖ<br />
V = ie(∂µA µ + A µ <br />
∂µ)<br />
<br />
M = −i d 4 xΨ ∗ c [ie(∂µA µ + A µ <br />
<br />
∂µ)] Ψa
ØÙÓÒ×ÐÒØÖØÓÒÕÙÖÑÒ×ÓÒÒÐÐÔÖÔÖØ×ÙÔÖÑÖØÖÑÐ ×ÓÑÑ<br />
ØÑÔ×ÄÑÔÐØÙÚÒØ ÄØÖÑ×ÙÖ×ØÒÙÐ××ØÒÙÐÐÒÒÒ×Ð×ÔØÒ×Ð<br />
<br />
ÔÖØÙÐ×ÐÖ× ÔÖ××Ù×ØØÙØÓÒ×ÓÒØÓÒ×ÓÒΨaØΨcÔÖÐÙÖÜÔÖ××ÓÒÔÓÙÖ× <br />
ÚÐÕÙÖÚØÙÖØÖÒ×ÖØq µÓÒÒÔÖ<br />
ÇÒÒØÐÕÙÖÓÙÖÒØÑÔÖ<br />
×ÔÔÐÕÙÐÓÖ×ÕÙÓÒ×ØÒÔÖ×ÒÒØÖØÓÒÖÔÐÙÖ ×ØÙÒÜØÒ×ÓÒÙÓÒÔØÓÙÖÒØÓÒÒÙÔØÖ ÚÓÖ ÕÙ<br />
<br />
M = e<br />
<br />
−∞ − d 4 x(∂µΨ ∗ c)A µ Ψa<br />
d 4 xjµA µ <br />
<br />
d 4 x e −iqx A µ <br />
q µ = (pa − pc) µ <br />
d 4 xΨ ∗ c∂µA µ Ψa = Ψ ∗ cA µ Ψa| +∞<br />
d 4 x[Ψ ∗ c(∂µΨa) − (∂µΨ ∗ c)Ψa]A µ <br />
= −i<br />
M = −ieNaNc(pa + pc)µ<br />
j µ = ie [Ψ ∗ c(∂ µ Ψa) − (∂ µ Ψ ∗ c)Ψa] <br />
temps c p<br />
3<br />
ÎÖØÜÙ×ÓÒ<br />
V<br />
a<br />
p<br />
×Ù××ÚÑÒØÔÖØ ÇÒÚÙØÖÖÐÚÓÐÙØÓÒÙÓÙÖÒØÐÖÐØÖÕÙØÖÒ×ÔÓÖØ ÐÔÓØÓÒÝÒØÙÒÖÒÙÐÐÈÓÙÖÖÓÒ<br />
1<br />
ÒÐ ÓÒ×ØÖÙØÐÐÑÒØÑØÖÙÓÙÖÒØÑÚÐÙÒØÖÐØØÒØÐØÐØØ<br />
j µ (ÔÓÒ) ≡ 〈c|j emµ <br />
|a〉 = 〈ÔÓÒ(pc)|j<br />
emµ <br />
|ÔÓÒ(pa)〉
ÆÓØÓÒ×ÕÙÐÓÙÖÒØÑ×ØÓÒ×ÖÚÐÖ×ØÐÑÑÕÙÐÐ ∂µj µ ØÙÐ×ÝÒØ×Ö×ÐØÖÕÙ×ÖÒØ×ÔÜÙÒÐØÖÓÒÚÒÒØÙÒ ÇÒÚÖÖÕÙÒ×ÐÒØÖØÓÒÐÐÓÙÖÒØÐÔÙØÑÔÐÕÙÖ×ÔÖ <br />
ÒÙØÖÒÓÐØÖÓÒÕÙ ÙØ ÄÓÖÑÙÓÙÖÒØÒØÐÔÓÙÖ×ØØ×ÖÔÖ×ÒØ×ÔÖ×ÓÒ×ÔÐÒ×× <br />
= 0<br />
<br />
ÁÐÖ×ØÜÔÖÑÖÐÑÔA µÖÔÖÐÙØÖÔÖØÙÐØÒØÖÓÙÖÐÖ ×ÙÜÔÖØÙÐ×ÓÑÑÓÒÐÑÒØÓÒÒÒ ×ÙÐØØÒ× ÓÒÔØ×ÐÐØÖÓÝÒÑÕÙÐ××ÕÙÐÓÙÖÒØÐÙØÖÔÖØÙÐÒÖ ÄÜÔÖ××ÓÒÒÐÓØØÖ×ÝÑØÖÕÙÙÒÚÙ×ÓÙÖÒØ× ÇÒ×Ò×ÔÖÒÓÙÚÙ× ÐÑÔA µ×ÓÙ×ÐÓÒØÖÒØ×ÕÙØÓÒ×ÅÜÛÐÐ<br />
∂µ∂ µ A ν = j ν<br />
ou ✷A ν = j ν ÇÒÓÔØÐÓÒØÓÒÙÄÓÖÒØÞ <br />
∂µA µ ÈÓÙÖÐÜÔÖ××ÓÒÙÓÙÖÒØÒÐÓÒÔÖ×ÝÑØÖÙÒÓÖÑ×ÑÐÖ <br />
ÄÑÓÑÒØØÖÒ×ÖØq×ØØÐÕÙ<br />
= 0<br />
ÇÒÖÑÖÕÙÕÙÐÔÒÒ×ÔØÓØÑÔÓÖÐÐÒ×ÐÜÔÖ××ÓÒÙÓÙÖÒØ ×ØÓÒØÒÙÒ×ÐØÖÑÐÜÔÓÒÒØÐÐØÕÙ✷ exp(iqx) ÇÒÒÙØÕÙÐÔÓØÒØÐA µÕÙ×Ø×Ø ×ØÐÓÖÑ<br />
×ÑÔÐÖÐ×ÒÓØØÓÒ×ÎÓÖÂÂ×ÓÒÐ××ÐÐØÖÓÝÒÑ×ÔÔÒÜÓÒÍÒØ×Ò ÓÙÖÒØÜÔÖÑÒÙÒØ×ÒØÙÖÐÐ×ØÖØÓÒÐ×ÕÙÐÑÒÐπØÔÖÑØ <br />
ÑÒ×ÓÒ× <br />
j µ ac = eNaNc(pa + pc) µ exp{−i(pa − pc)x} = eNaNc(pa + pc) µ exp{−iqx}<br />
j µ<br />
bd = eNbNd(pb + pd) µ exp{i(pd − pb)x} = eNbNd(pb + pd) µ exp{iqx} <br />
q µ = (pd − pb) µ = (pa − pc) µ <br />
A µ = − 1<br />
q2jµ bd<br />
= (−q 2 ) exp(iqx)
Ò×Ù×ØØÙÒØ Ø Ò× ÓÒÓØÒØÔÓÙÖÐÑÔÐØÙ<br />
M = +i<br />
bd = <br />
ÄÒØÖÐÓÒÒÙÒØÙÖ(2π) 4 ÐÕÙÒØØÑÓÙÚÑÒØØÐÒÖÄ×Æi×ÓÒØ×ØÙÖ×ÒÓÖÑÐ×ØÓÒ ×ÜÔÖ××ÓÒ××ÓÖ×ÔÖ×ØÙÖ×ÒÑØÕÙ×ÖØ×Ò×ÐÒÒÜ ÖÐØ×ÙÜÔÖØÙÐ×ÒØÖÒØ×Ø×ÓÖØÒØ×ÈÖÐ×ÙØ×ØÙÖ××ÔÖ××ÒØ<br />
δ(pc+pd−pa−pb)ÕÙÜÔÖÑÐÓÒ×ÖÚØÓÒ<br />
−pb)×ÔÖØÐÑÒØÐÓÒ×ÖÚØÓÒÙÕÙÖÑÓÑÒØ<br />
ØÒØÑÔÐØÑÒØÑ× ÄÖÑÑÝÒÑÒÔÓÙÖÐÑÔÐØÙÙ<br />
ÄÖδ(pc+pd −pa<br />
×ÓÒÑπ +<br />
<br />
d 4 xjacµ<br />
1<br />
q2jµ = ie 2 NaNbNcNd(pa + pc) µ (pb + pd)µ<br />
K + → π + K +<br />
1<br />
q2 <br />
1 p<br />
c<br />
p 1<br />
d<br />
d 4 x e −i(pa−pc)x e i(pd−pb)x<br />
ie ( p a + pc)ν ig<br />
1<br />
1<br />
µν<br />
ie ( p + p<br />
ÖÑÑÝÒÑÒÔÓÙÖÐÙ×ÓÒÙÜÓ×ÓÒ×<br />
b d ) µ<br />
q 2<br />
pa pb<br />
ÄÑÔÐØÙÒÚÖÒØÄÓÖÒØÞÐÙ×ÓÒÑπ + K + → π + K +Ù ÔÖÑÖÓÖÖÒαÑ= e2 /4π×ÖØ×ÓÙ××ÓÖÑÐÝÒÑÒ<br />
−ig<br />
M = (−i)e(pa + pc)µ<br />
µν<br />
q2 <br />
ÑÒÑÒÖÖÔØÙÖÐÑÒØ×ÐÑÒØ×Ò×ÙÒÖÔØÐÕÙÐÙ ÇÒÖÓÒÒØÒ× Ð×ÖÒØ×ÐÑÒØ×ÓÒ×ØØÙØ× ÊÝÒ<br />
(−i)e(pb + pd)ν<br />
ÐÙÖ
Spin<br />
Lignes externes<br />
0<br />
1<br />
1<br />
2<br />
1<br />
Lignes internes<br />
0<br />
1<br />
2<br />
1<br />
1<br />
,<br />
Vertex electrodynamique<br />
0−0<br />
1<br />
Description<br />
,<br />
Representation Facteur<br />
graphique multiplicatif<br />
Boson<br />
Fermion ,<br />
entree (initial)<br />
sortie (final)<br />
Boson<br />
ou<br />
Antifermion<br />
sortie , (initial)<br />
entree (final)<br />
ou<br />
photon inclu<br />
Boson<br />
Fermion<br />
antiboson<br />
antiboson<br />
Boson massif<br />
Photon<br />
Particules ponctuelles<br />
−ie γ µ<br />
−ie p + p , µ<br />
( ) gαβ<br />
− p , αg µ<br />
β − p g<br />
β µ<br />
2 2<br />
ØÚÔ×ÓÒØ××ÔÒÙÖ×ÖÑÓÒØÒØÖÑÓÒeµ×ØÐÕÙÖÚØÙÖ ×ÓÒØÙØÐ××Ò×ÐÓÒ×ØÖÙØÓÒÐÐÑÒØÑØÖMÆÓØÓÒ×ÕÙÙÔ ÊÐ×ÔÓÙÖÐ×ÖÑÑ×ÝÒÑÒÄ×ØÙÖ×ÑÙÐØÔÐØ×<br />
1−1<br />
α<br />
ÔÓÐÖ×ØÓÒÙÒÓ×ÓÒ×ÔÒ<br />
<br />
p ,<br />
p<br />
ou<br />
ou<br />
ou<br />
1<br />
u(p)<br />
−<br />
u(p)<br />
−<br />
v(p)<br />
v(p)<br />
ε µ<br />
ε µ *<br />
2 2<br />
− i /(k −m )<br />
i<br />
i<br />
γ<br />
µ k µ + m<br />
k 2 − m 2<br />
k2 − m 2<br />
− g µν +k µ k ν<br />
i (− g µν / k 2 )<br />
−ie ( p + ,<br />
p ) µ<br />
/m<br />
2
ÙÖ ÄÔÔÐØÓÒÒ×ÐÙÄÓÖÒØÞ×ÖÐ×ÝÒÑÒ×ÙÚÒØ×ÚÓÖ<br />
ØÙÐ ÙÒØÙÖÔÓÙÖØÓÙØÓ×ÓÒÜØÖÒÒØÖÒØÓÙ×ÓÖØÒØØ×ÙÔÔÓ×ÔÓÒ ÔÖÑØÖØÖÓÙÚÖÐÖÐØÓÒ ÓÒÒØÖÓÙØ<br />
ÙÒÔÓØÓÒÒØÖÒ ÙÒØÖÑÔÔÔÓÙÖÕÙÚÖØÜÑÔÐÕÙÒØÔÖØÙÐ××ÔÒØ<br />
ÄÓÖÑ ÔÓÙÖÙØÖ×ÓÜÙÑ×Ð×Ö×ÙÐØØ×ÔÝ×ÕÙ××ÖÒØÐ×ÑÑ×Ä ÄØÙÖÕ2ÔÖÓ×ÔÔÐÐÑ××ÙÖÖÙÔÓØÓÒÚÖØÙÐ×ØÒÓÒÒÙÐ ÙÒÔÖÓÔØÙÖ Õ2ÚÒØÙÓÜÐÙÄÓÖÒØÞØØÓÖÑ×ÖØÖÒØ Õ2ÔÓÙÖÐÔÓØÓÒÙÄÓÖÒØÞ<br />
ØÙÖµνØÐÓÒÒÜÓÒÒØÖÐ×ÙÜÚÖØÜÑ ÄÔÖÓÐØØÖÒ×ØÓÒ×ØÓÒÔÖÓÔÓÖØÓÒÒÐÐ<br />
<br />
2 ËØÓÒÖÒØÐÐπ + ÈÐÓÒ×ÒÓÙ×Ò×ÐÖÖÒØÐÙÑØÒ×ÖÖÒØÐÐÓÖÑÙÐ ÑÐÖØÓÒ ×ÖÙØdσ(i →<br />
ÇÒÖØÖÓÙÚÐÖÐØÓÒ 1Ä×ØÓÒÖÒØÐÐÙ×ÓÒÒ×ÐÑ×ÖØÓÒ<br />
|p2)Ø×ÓÒ<br />
= ÓEi<br />
<br />
×ÐÔÖÓ××Ù××ØÐ×ØÕÙ(|p1| = ÔÓ×c =<br />
ÓÐÐÑÒØÑØÖÙÖÖ×ØÓÒÒÔÖ<br />
<br />
|Mfi| 2 = [(pa + pc)(pb + pd)] 2<br />
e 2<br />
q 2<br />
K + → π + K +Ò×Ð<br />
f) = 1<br />
|Mfi|<br />
4|p|Ei<br />
2 EbÍØÐ×ÒØÔÓÙÖÐÄÔ×ÓÒÓØÒØ<br />
dLips(pa + pb, {pj})<br />
Ea +<br />
1<br />
dσ(i → f) = | Mfi |<br />
4 | p | Ei<br />
2 1<br />
(4π) 2<br />
| p |<br />
dΩ =<br />
Ei<br />
| Mfi | 2<br />
dΩ<br />
(8πEi) 2<br />
dσ<br />
dΩ<br />
(Ñ)= |Mfi| 2<br />
(8πEi) 2
ÃÒÑØ× ÇÒÒØÓÑÑÙÒÑÒØÐ×ÖÒÙÖ×ÒÚÖÒØ×ÚÓÖÐØÐÈ×ÓÙ× ËØÓÒÖÒØÐÐ×ÓÙ×ÓÖÑÒÚÖÒØ<br />
ÎÖÐ×ÅÒÐ×ØÑ<br />
<br />
ÒØÖÑ×ÚÖÐ×Ð×ØÓÒÖÒØÐÐ×ÖØ<br />
ÕÙÐÓÒÔÙØÚÐÓÔÔÖÒ <br />
<br />
ÇÒÔÙØÙ××ÜÔÖÑÖ|M| 2ÒÓÒØÓÒ×ØÙÇÒØÖÓÙÚÔÖØÖ <br />
<br />
<br />
<br />
2<br />
dσ<br />
dt<br />
s = (pa + pb) 2 = (pc + pd) 2<br />
t = (pa − pc) 2 = (pb − pd) 2<br />
u = (pa − pd) 2 = (pb − pc) 2<br />
s + t + u = m 2 a + m 2 b + m 2 c + m 2 d<br />
= 1<br />
64π<br />
dσ 1<br />
=<br />
dt 16π<br />
|M| 2 = e 4<br />
|M| 2<br />
(papb) 2 − (mamb) 2<br />
|M| 2<br />
[s − (ma + mb) 2 ][s − (ma − mb) 2 ]<br />
s − u<br />
t<br />
2<br />
= (4παem) 2<br />
<br />
s − u<br />
t
ÓÖÑÙÐÊÙØÖÓÖ<br />
mbÓÒØÖÓÙÚÐ<br />
≪ mbØ|p ÉÑÓÒØÖÖÕÙÒ×ÐÔÔÖÓÜÑØÓÒma b |≪<br />
<br />
dσ<br />
=<br />
dΩ Rutherford<br />
1 α<br />
4<br />
2<br />
| pa | 2<br />
1<br />
sin 4 <br />
(θ/2) ÑÔÐØÙ×Ù×ÓÒÑπ + π + → π + π + Øπ + π− → π + π− ÔÖÒÖÒÓÑÔØÐÖÔÒ×ÐÕÙÐÐ×ÙÜÔÖØÙÐ×ÒÐ××ÓÒØÒ× Ò×ÙÜÔÖØÙÐ×Ò×ÐÐÒ×ÖÔ×ÝÒÑÒÓÒÓØ ÚÓÖÙÖ Ò×Ð×ÙÜÓ×ÓÒ×ÒØÕÙ×ÐÑÔÐØÙÓØØÖ×ÝÑØÖÕÙÔÖ<br />
p<br />
c<br />
p d<br />
q<br />
p p<br />
a b<br />
,<br />
q<br />
p<br />
a p<br />
b ÖÑÑÒÔÓÙÖÐÙ×ÓÒπ + π + ÄÑÔÐØÙÙ×ÓÒ×ÖØ<br />
M(π + π + ) = (−i) 3 e 2<br />
<br />
(pa + pc)µ(pb + pd) µ<br />
(pb − pd) 2 + (pa + pd)µ(pb + pc) µ<br />
(pb − pc) 2 ÇÒÔÙØÙØÐ×ÖÖ×ÙÐØØÔÓÙÖÖÖÐÑÔÐØÙÙ×ÓÒπ + π− → π + π− Äπ −ØÒØÔÖ×ÓÑÑÐÒØÔÖØÙÐÓÒÐÙÔÔÐÕÙÐÖÐÐÒÚÖ×ÓÒÙ ×Ò×ÚØÙÖ× ÚØÙÖÙÖ ÇÒÒÐØØÒØÖÒØØÐØØ×ÓÖØÒØØÓÒØÙÙÒÒÑÒØ<br />
M(π + π − ) [pa, pb; pc, pd] ≡ M(π + π + <br />
) [pa, −pd; pc, −pb]<br />
p d<br />
p c
p a<br />
p c<br />
ÕÙÓÒÒ<br />
M(π + π − ) = (−i) 3 e 2<br />
p b<br />
p d<br />
π+ π − π + π +<br />
ÖÑÑÒÔÓÙÖÐÙ×ÓÒπ + π− .<br />
<br />
(pa + pc)µ(−pd − pb) µ<br />
(−pd + pb) 2<br />
+ (pa − pb)µ(−pd + pc) µ<br />
(−pd − pc) 2 <br />
<br />
=<br />
= (−i) 3 e 2<br />
<br />
−(pa + pc)µ(pd + pb) µ<br />
(pb − pd) 2 + (pa − pb)µ(−pd + pc) µ<br />
(pa + pb) 2<br />
<br />
ÇÒÖÓÒÒØÒ×ÐÔÖÑÖØÖÑÐÑÔÐØÙÓØÒÙÔÓÙÖπ + K +ÓÖÑ×ÙÒ ÙÖ ÒÑÒØ×ÒÐÔÖ×ÒÙÒÖÒØÚÄÙÜÑØÖÑ ÓÖÖ×ÔÓÒÙÒÔÖÓ××Ù×ÒÒÐØÓÒÓÑÑÖÔÖ×ÒØÔÖÐÖÔÐ<br />
p d<br />
p c<br />
p a p b<br />
π π<br />
p b<br />
p a<br />
ÖÑÑÒÒÐØÓÒπ + π − → γ ∗ → π + π −<br />
<br />
p a<br />
p c<br />
p d<br />
p b
Ä×ÓÐÙØÓÒ×ÕÙØÓÒ×ÅÜÛÐÐÔÓÙÖÐÑÔEÐÓÒÑÐÖ× ÈÓØÓÒ×ÖÐ×ØÑ×××<br />
ÔÓÐÖ×ØÓÒÐÓÒ ÍÒÓÖÑÒÐÓÙÔÙØØÖÔÖ×ÔÓÙÖÐÑÔBÓÖØÓÓÒÐEØÐÜ ÔÖÓÔØÓÒÄÚØÙÖÙÒØeÓÒ×ØØÙÐ×Ò×ÐÕÙÐÐÓÒÜÔÖÑÐ ÙÖÙÒÔ×δÒØÖÐ×ÙÜÔÖÓØÓÒ×ÈÓÙÖÐÑÔÔÝ×ÕÙÓÒÔÖÒ Ä×ÑÔÐØÙ×E1ØE2×ÓÒØ×ÕÙÒØØ×ÓÑÔÐÜ×ÕÙÔÖÑØÒØÖÓ<br />
ÐÐ×Ø◦ÐÔÓÐÖ×ØÓÒ×ØÖÙÐÖÄÑÔÔÝ×ÕÙØÓÙÖÒÙØÓÙÖ ÐÔ×Ò×ØÔ×ÒÙÐÐÓÒÔÖÐÔÓÐÖ×ØÓÒÐÐÔØÕÙÒÔÖØÙÐÖ×<br />
0ÓÒÙÒÔÓÐÖ×ØÓÒÐÒÖÐÑÔ<br />
ÐÜzØÙÜÔÓÐÖ×ØÓÒ×ÖÙÐÖ×ÙØÖÓØ×ÓÒØÔÓ××Ð×<br />
ÐÔÖØÖÐÐÐ×ÓÐÙØÓÒËδ = Ó×ÐÐÒ×ÙÒÔÐÒÕÙØÙÒÒÐθ= tan<br />
ÓÖÑ×ÙÜÚØÙÖ×ÓÑÔÐÜ×ÓÖØÓÓÒÙÜ ÐÒÖ×ÓÖØÓÓÒÐ××ÐÓÒexØeyÇÒÔÙØÐØÖÒØÚÑÒØÒÖÙÒ× Ò×ÐÔÓÐÖ×ØÓÒÐÓÒ×ØÖØÐ×ÙÜÓÑÔÓ×ÒØ× ÇÒÔÖÐÐØ×ÔÓ×ØÚØÒØÚλ =<br />
e± = 1 Ä×ÓÐÙØÓÒÚÒØ <br />
√ (ex ± iey) ˆz ÕÙÐÓÒÓÑÔÐØÔÖÐÖØÓÒe0<br />
ÔÓÐÖ×ØÓÒ×ÖÙÐÖ×ÐØ×ÓÔÔÓ××Ò×ØØ×ÐÓÒÔÓÐÖ×Ö ÐÖÚÒØÜÔÖÑÖÐØØÔÓÐÖ×ØÓÒÓÑÑÙÒ×ÙÔÖÔÓ×ØÓÒÙÜ<br />
2<br />
ÓÑÔÓ×ÒØ× ÇÒ××ÓÒÖÐÑÒØÐÑÔÙÔÓØÓÒÙÔÓØÒØÐAÒ×ÐÙ<br />
+1Ð×ÓÑÔÓ×ÒØ× 0×ØÐÓÖÑ −1Ð× ÙÐÖÑÒØÚλ = ØÐÐÚλ =<br />
<br />
ÓÙÐÓÑÐ×ÓÐÙØÓÒÐÕÙØÓÒÔÖÓÔØÓÒ✷A =<br />
ÔÖÓÔÒØ×ÐÓÒÐÜÞÔÙØØÖÖØ<br />
E(t, z) = (exE1 + eyE2) exp(ikz − iωt) <br />
ÔÓÙÖÐÑÔÖÐ E(t, z) = E(ex ± iey) exp(ikz − iωt) <br />
Ex = E cos(kz − ωt) Ey = ∓E sin(kz − ωt)<br />
−1 (E2/E1)ÔÖÖÔÔÓÖØÐÜÜË<br />
±1<br />
<br />
=<br />
E(t, z) = (e+E+ + e−E−) exp(ikz − iwt)<br />
<br />
A = eN exp(ik · r − iωt)
Ò×ÐÖØÓÒkØÐÐÕÙ ÄÖÐØÓÒÖÔÖ×ÒØÙÒÓÒÔÓØÓÒÔÓÐÖ×ØÓÒe×ÔÖÓÔÒØ<br />
ÓÙ×ÙÖÙÒ×ÔÓÐÖ×ØÓÒ×ÖÙÐÖ× ÔÙÚÒØØÖÒ××ÙÖÙÒ×ÔÓÐÖ×ØÓÒ×ÐÒÖ×ÓÑÑÒ× ÓÒÚÒØÓÒÒÐÐÑÒØeÒÕÙÐÖØÓÒÙÑÔEË×ÓÑÔÓ×ÒØ× Ò×ÖÒÖ×ÓÒ<br />
k<br />
<br />
⎠ÖÔÖ×ÒØÙÒÔÓØÓÒÐØ<br />
⎠<br />
ÐØÒÔÒÒØ× ×ÒØÐÓÒØÙÒÐ Ò×Ð×ÙÒÔÓØÓÒÑ××ÓÒÙÖØÙ××ÐÔÓ××ÐØÙÒÓÑÔÓ ÑÓÒØÖÕÙÐÓÒÒÙÜØØ×ÔÓÐÖ×ØÓÒ ÙÜØØ× ÄØØ⎛<br />
ÔÖÓÔØÓÒÐÓÒÒ×Ð×ÐÒÖÐ×ÓÑÔÓ×ÒØ××ØÖÒÓÖÑÒØ ÇÒÔÙØÚÖÖÕÙ×ÐÓÒØÙÙÒÖÓØØÓÒÒÐθÙØÓÙÖÐÜÞ ÓÑÑ<br />
e(λ<br />
e<br />
e ′ y = ex ØÒ×ÕÙÒ×Ð×ÖÙÐÖÐÐ××ØÖÒ×ÓÖÑÒØÓÑÑ <br />
sin θ + ey cosθ<br />
ÇÒÖÓÒÒØÐÓÖÑÐÓÔÖØÙÖÖÓØØÓÒÙØÓÙÖÐÜÞÔÓÙÖÙÒ<br />
ÔÓØÓÒ Ð×ÙÒÔÖØÙÐÝÒØÙÒÑ××ØÐ×ÙÒÔÖØÙÐÑ××ÒÙÐÐÐ ×ÙØ×ØÖÔÖ×Ò×Ð×ÔÖÖÔ×ÕÙ×ÙÚÒØÒÓÒ×ÖÒØ×ÔÖÑÒØ<br />
exp(iJzθ)ÚÓÖï<br />
<br />
ÔÖØÙÐ×ÔÒÊz(θ) =<br />
<br />
· e = 0 ÉÚÖÖÐÔÓÙÖÐÙÓÙÐÓÑ∇A = 0.<br />
⎛ ⎞<br />
⎛<br />
1<br />
e(λ = +1) = ⎝ 0 ⎠ e(λ = −1) = ⎝<br />
0<br />
⎞<br />
1<br />
⎝ 0<br />
0<br />
⎛<br />
0<br />
= 0) = ⎝ 1<br />
0<br />
0<br />
0<br />
1<br />
⎞<br />
<br />
⎞<br />
⎠<br />
′ x = ex cosθ − ey sin θ<br />
e ′ z = ez<br />
e ′ + = e+ exp(i(+1)θ)<br />
e ′ − = e− exp(i(−1)θ) <br />
e ′ 0 = ez
ÉØÙÖÐÑ××ÓÒÖÝÓÒÒÑÒØÑÔÖÙÒÐØÖÓÒÒÓÒÖÐØÚ×ØÒ×ÙÒ ÑÔÖÐÐÐÑÒØÙÑÔÑÒØÕÙØÔÖÔÒÙÐÖÑÒØÑÔ ÉÑÔÓÙÖÐ×ÖÐØÚ×ØÖÝÓÒÒÑÒØ×ÝÒÖÓØÖÓÒ ÑÔÑÒØÕÙÖÝÓÒÒÑÒØÝÐÓØÖÓÒÉÙÐÐ×ØÐÔÓÐÖ×ØÓÒÐÓÒ<br />
e(λËÓÒ×ÔÐÒ×ÐÖÖÒØÐÖÔÓ×ÐÔÖØÙÐÓÒÐ× ÙÜØØ×ÐØλ ÄÔÖØÙÐÑ××Ú×ÔÒ −1ÓÒØÓÖÖ×ÔÓÒÖÙÒÚØÙÖÔÓÐÖ×ØÓÒ<br />
ÓÑÑÙÒÑÒØÐØØ×ØÖØÒ×ÙÒ×ÔÓÐÖ×ØÓÒÖÙÐÖ<br />
ÖØ×ÒÒex =<br />
ÚÐÓÒØÓÒÓÖØÓÓÒÐØ e ∗ (λ)e(λ ′ ) = δλλ ′ ÈÓÙÖÖÖÐÓØÒÑÓÙÚÑÒØÓÒ×ØÑÒÓÒ×ØÖÙÖÙÒÕÙÖÚØÙÖ <br />
e = (e 0 <br />
(λ), e(λ)) Úe 0 µ Ö×ÙÐØØ×ØÚÐÐÒ×ØÓÙØÖÔÖØÑÓÒØÖÕÙÐÓÒØÖÓ×ÕÙÖÚØÙÖ× <br />
ÔÓÐÖ×ØÓÒÒÔÒÒØ×ÇÒÒÙÒÔÖØÙÐ×ÔÒ ÄÔÖØÙÐÑ××ÒÙÐÐØ×ÔÒ ÐÔÓØÓÒ<br />
eµ(λ) = 0<br />
ÄÔÖØÙÐ×ÔÖÓÔÒ×ÐÚÚØ××ØÓÒÒÔ×ÖÖÒØÐ ÖÔÓ×ÖÚÓÒ×Ð×ÓÐÙØÓÒÐÕÙØÓÒÓÒÐÖ✷A µ Ú k 2 <br />
<br />
= 0<br />
(1, 0, 0) ey = (0, 1, 0) ez = (0, 0, 1) <br />
e(λ = +1) ≡ − 1<br />
√ (1, i, 0)<br />
2<br />
e(λ = 0) ≡ (0, 0, 1) <br />
e(λ = −1) ≡ − 1<br />
√ (1, −i, 0)<br />
2<br />
0Ò×Ð×Ý×ØÑÖÔÓ×ÐÔÖØÙÐÒ××Ý×ØÑÓÒÙ××<br />
0)Ó =<br />
p = (M, 0, 0,<br />
p<br />
0×ÓÙ×ÐÓÖÑ<br />
=<br />
A µ = Ne µ exp(−ikx)
ØÕÙÐÓÒØÓÒÓÖØÓÓÒÐØ×ØØÓÙÓÙÖ×ÚÐÐÇÒÔÙØÑÓÒØÖÖÕÙ ØØÓÒØÓÒ×ØÒÐÓÙÑ×ÐÐ×Ø××ÓÙÓÜÐÙ ØÐ××ÓÒ×ÑÒØÒÒØÕÙÐÓÒÕÙÙÜØØ×ÔÓÐÖ×ØÓÒÒÔÒÒØ×<br />
ÖÐÓØ×ØÑ××ÒÙÐÐÄÙÄÓÖÒØÞ∂µA µ 0×ØÖÙØÔÖ<br />
=<br />
k µ <br />
eµ = 0<br />
ÐÙÄÓÖÒØÞ×ØÒÓÖ×Ø×Ø×ÐÓÒÖÑÔÐ<br />
A µ → A µ − ∂ µ χ <br />
ÔÓÙÖÚÙÕÙÐÓÒØÓÒ×ÐÖχ×ÓØÙÒ×ÓÐÙØÓÒÐÕÙØÓÒ<br />
✷χ = 0 <br />
Ëχ×ØÐÓÖÑÜÔÜÚÒØ<br />
A µ → A µ − iαk µ exp(−ikx) = N(e µ + βk µ ) exp(−ikx)<br />
ÒÐÐÙÕÙÖÑÓÑÒØÐÔÖØÙÐ ÕÙ×ØÕÙÚÐÒØÒÖÐÚØÙÖÔÓÐÖ×ØÓÒÙÒÕÙÒØØÔÖÓÔÓÖØÓÒ<br />
ÇÒÔÙØ×ÖÖÒÖÔÓÙÖØÖÓÙÚÖÐÚÐÙÖβÕÙÒÒÙÐÐÐÓÑÔÓ×ÒØØÑÔÓ ÖÐÐÙÒÓÙÚÙÕÙÖÚØÙÖØØÓÒÓÒÖØÖÓÙÚÔÖØÖÐ ÈÙ×ÕÙ2 ÒÓÙÚÙÕÙÖÚØÙÖÔÓÐÖ×ØÓÒ×Ø×ØØÓÙÓÙÖ×<br />
ÔÓÐÖ×ØÓÒÒÔÒÒØ×ÊÑÖÕÙÞÕÙÖ×ÓÒÒÑÒØØÒØÔÖÕÙÐÓØ ÓÒØÓÒØÖÒ×ÚÖ×ÐØk ·e ÙÒÑ××ÒÙÐÐ(k 2 ÔÓØÓÒÖÐÕÙÖÑÓÑÒØØÔÓÐÖ×ØÓÒλÙÒÔÖÓ××Ù×Ù×ÓÒ Ò×Ð×ÖÐ×ÝÒÑÒÓÒÒÐÙØÐÔÓ××ÐØÖÔÖØÔÖÙÒ<br />
<br />
ÚÐÖÐØÓÒÓÖØÓÓÒÐØÐ×ÒÑÓÒ×ÚÒØÙØÕÙÐÓÒÙÒÕÙÖ ÚØÙÖ e ∗ (λ)e(λ ′ ) = −δλλ ′ ÄÒÓÖÑÐ×ØÓÒ×ØÐÑÑÕÙÔÓÙÖÐ×ÔÖØÙÐ××ÔÒ <br />
<br />
= 0)<br />
e µ → e µ + βk µ <br />
= 0ÕÙÜÔÖÑÙ××ÐÜ×ØÒÙÜØØ×<br />
A µ = Ne µ ÔÓÙÖÐÔÓØÓÒÒØÖÒØ (k, λ) exp(−ikx)<br />
A µ = Ne µ∗ ÔÓÙÖÐÔÓØÓÒ×ÓÖØÒØ<br />
(k, λ) exp(+ikx)
ÓÖÑ×ÕÙÓÒÔÖØÑÒØÒÒØ××ÓÐÙØÓÒ×ÐÕÙØÓÒÖÇÒÚÙï ÄÔÖÓÙÖ×ØÒÐÓÙÐÐÙØÐ×ÔÓÙÖÐÔÖØÙÐ×ÔÒ ÄÔÖØÙÐ×ÔÒ ï<br />
Ò×ØÓÙÖÒØÔÖÓÐØÔÓÙÖÐÒØÖØÓÒÑ Óω×ØÐÕÙÖ×ÔÒÙÖÖØÝÔÙÕÙØÓÒ ØØÝÔÚ ÈÖØÒØÐ×ØÖÙØÙÖÒÖÐÙÓÙÖÒØ ÔÓÙÖÐÒØÔÖØÙÐ ÓÒÔÙØÜÔÖÑÖÐ ÔÓÙÖÐÔÖØÙÐ ÐÙÐÔÖØÖ<br />
ÕÙÔÙØØÖÚÐÓÔÔÒ <br />
ÆÓÙ×ÓÔØÓÒ×ÐÑÑÒÓÖÑÐ×ØÓÒÕÙÔÓÙÖÐÔÖØÙÐ×ÔÒ ×ÓÒØÖÔÔÐ×Ò×ÐÙÖ ÓÒÚÒØÓÒ××ÓÒØÔÓ××Ð×Ä×ÖÐ×ÝÒÑÒÔÓÙÖÙÒÐØÖÓÒØÙÒÔÓ×ØÖÓÒ ÙØÖ×<br />
ÉÐÒØÖØÓÒÑÙÒÖÑÓÒ×ÔÒ ÈÓÙÖÓÒÒÖÙÒÜÑÔÐÐÑÔÐØÙÙ×ÓÒÑÙÒÐØÖÓÒÔÖÙÒ<br />
uiÅÓÒØÖÖÕÙÐÐØÙÖÑÓÒ×ØÓÒ×ÖÚ ×ÜÔÖÑÔÖÙÒÓÙÖÒØÚØÓ<br />
ÔÓÒÔÓ×Øe − ÄÔÖÓÔØÙÖ×ØÒÓÖÐÓÖÑ ÒÓÖÑÐ×ØÓÒØÐÖδÒÓÙ×ÓØÒÓÒ×ÐÒÐÓÙ Õ2ÍÒÓ×ÐÑÒ×Ð×ØÙÖ× <br />
ØscÖÔÐÙÖ <br />
Ò×ÐÙ×ÓÒÙÜÓ×ÓÒ×ØÒØÓÒÒÐÔÖ×ÒÙ×ÔÒÓÒÚÓØÒÖ ÄÓÒ×ØÖÙØÓÒÐ×ØÓÒÖÒØÐÐ×ØÔÐÙ×ÓÑÔÐÕÙÕÙ Ä×ØØ××ÔÒ×ÖÑÓÒ×ÒØÖÒØØ×ÓÖØÒØ×ÓÒØ×Ô×ÔÖÐ×Ò×sa<br />
dσsasc ∝ |Msasc| 2 •ËÐÓÒ×ÐØÖÓÒ×ÒÓÒÔÓÐÖ××ÓÒÓØÖÙÒÑÓÝÒÒ×ÙÖÐ×ØØ× <br />
<br />
ÕÙ××ÓÐÙØÓÒ××ÓÒØÐÓÖÑ <br />
Ψi×ÓÙ×ÐÓÖÑ<br />
Ψ = ω(p, s) exp(−ipx)<br />
<br />
4 d xΨfV<br />
j µ (e − ) = (−e)Ψfγ µ Ψi<br />
ÖÐÐÓÖÑufγ µ<br />
×ÔÒ Ø−1/2<br />
j µ (e − ) = (−e)NiNfu(pf, sf)γ µ u(pi, si) exp{i(pf − pi)x} <br />
π + → e−π +×ØÜÔÖÑÔÖ <br />
M =<br />
d 4 xj ν (e − ) gµν<br />
q2 jµ (π + )<br />
Msasc = i(−i)eu(pc, sc)γµu(pa, sa) −igµν<br />
q2 (−i)e(pb + pd)ν
u− ( p c ,s c) p c<br />
ie<br />
u( p a ,s γµ<br />
igµν<br />
<br />
q2<br />
p<br />
a) a pb<br />
1<br />
e− π+ ÖÑÑÝÒÑÒÔÓÙÖÐÙ×ÓÒe −π + → e−π +<br />
ÐÒØÖÙÜØØ××ÔÒÔÓ××Ð×Ð×ÓÖØ×ÙÖÐ×ÕÙÐ×ÐÙØ×ÓÑÑÖ<br />
•ËÐØØÙÖ×ØÒ×Ò×ÐÐÔÓÐÖ×ØÓÒÓÒÔÓÙÖÕÙØØ×ÔÒ Ä×ØÓÒÒÓÒÔÓÐÖ××ØÓÒ<br />
dσNP = 1 <br />
Ùï ÄÐÙÐÐÐÑÒØÑØÖÔÙØ×ÖÒÜÔÖÑÒØÜÔÐØÑÒØÐ×<br />
<br />
ÉØÙÖÐ×ÐÙ×ÓÒÙÜÔÖØÙÐ××ÔÒ ÓÒØÓÒ×ÓÒÐ×ÙÓÒÒ×ÙÔØÖ ÉÙÐÕÙ×ÜÑÔÐ××ÓÒØÓÒÒ×<br />
dσsasc<br />
2<br />
sa sc<br />
×ØÒÙÐÐÔÓÙÖÐÔÓØÓÒÖÐÑ×ÐÐ×ØÒÓÒÒÙÐÐÔÓÙÖÐÔÓØÓÒÚÖØÙÐÙ ÄÔÖÓÔØÙÖÙÒÔÖØÙÐÑ××Ú<br />
ÔÖÓÔØÙÖÊÔÔÐÓÒ××ÑØÕÙÑÒØÕÙÓÒØÑÒ ÔÖ<br />
✷A = j ∼ (q · q)A = j → A ∝ 1<br />
q2j Ó×ØÐÓÙÖÒØÑ ÃÐÒÓÖÓÒ ÓÒ×ÖÓÒ×ÑÒØÒÒØÙÒÓ×ÓÒÑ×××ÔÒ Ó××ÒØÐÕÙØÓÒ<br />
(✷<br />
p d<br />
1<br />
ie ( p + p d )<br />
b ν<br />
ÄÔÖÓÔØÙÖÔÓØÓÒÕÙ×ØÐÓÖÑ Õ2ÚÓÖ ÄÕÙÒØØq 2<br />
Ójh×ØÐ×ÓÙÖÓÙÖÒØÓ×ÓÒÕÙ<br />
<br />
+ m 2 )φ = jh → (−p 2 + m 2 )φ = jh
Ä×ÓÐÙØÓÒ×ØÐÓÖÑφ ∝<br />
p2 − m2jh ÇÒ×ØÑÒÐÖÐ<br />
ÔÖÓÔØÙÖÙÒÓ×ÓÒ×ÔÒ Ñ××ÑØÑÔÙÐ×ÓÒÔ <br />
ÙÒÔÓÒÔÓ×ØÖÔÐÙÖ ÄÖÐØÓÒ ×ØÙØÐ×ÖÔÜÒ×Ð×ÐÙ×ÓÒÓÑÔØÓÒ×ÙÖ ÄÜÔÖ××ÓÒÙÔÖÓÔØÙÖÔÖ×ÒØ<br />
1<br />
−i<br />
p 2 − m 2<br />
<br />
−i ( p2 − m2)<br />
π+<br />
ÖÑÑÐÙ×ÓÒÓÑÔØÓÒ×ÙÖÐπ + ÙÒÔÐÕÙÒÐÔÖØÙÐÒÚÒØÖÐÐØØÔÖÓÔÖØÔÖÑØÙÒ ÒØÓÒÐØÖÒØÚÐÑ×××ØÐÚÐÙÖÔ2ÙÔÐÙÔÖÓÔØÙÖ ÙØÖ××ÙØÐØ××ÓÒØÔÖ×ÒØ×Ò×ÐÔÖÓÔØÙÖÔÖØÙÐ××ÔÒ ÓÒ<br />
ÓÙ ÐÒÓÑÒØÙÖÒÔ2Ñ2ØÒØØÓÙÓÙÖ×ÐÈÓÙÖÐ×ÖÑÓÒ××ÔÒ<br />
ÔÖÓÔØÙÖÙÒÖÑÓÒ×ÔÒ Ñ××ÑØÑÔÙÐ×ÓÒÔ<br />
i /p + m<br />
p2 − m2 <br />
ÎÓÖÔÖÜÖÔ
ÐÙÐÕÙÐÕÙ××ØÓÒ××dσ/dΩ ÓÒ×ÖÓÒ×ÐÔÖÓÐØÙ×ÓÒÐØÖÓÒÔÓÒe − ÐÙÐÖ |Msasc| 2 = Msasc(Msasc) ∗ ØÖÑÓÒÙÙÖÑØÕÙÓÒÒ ÈÓÙÖÙÒ×ÐÖÓÒÙÙÓÑÔÐÜØÓÒÙÙÖÑØÕÙÓÒÒØÄ<br />
= Óu =<br />
u † γ0<br />
e 2<br />
q 2<br />
2<br />
π + → e − π +ÇÒÓØ<br />
[u(pc, sc)γµu(pa, sa)(pb + pd) µ ] [...] †<br />
[u(pc, sc)γνu(pa, sa)(pb + pd) ν ] † = u † (pa, sa)γ † νu † (pc, sc) (pb + pd) ν =<br />
<br />
= u † (pa, sa)γ † νγ† 0u(pc, <br />
sc) (pb + pd) ν ÈÙ×ÕÙÜÖγ † νγ† †<br />
u (pa, sa)γ0γνu(pc, sc) ÒÓÒÐÙ×ÓÒÒ×ÐÐÙÐ ÓÒÓØÚÐÙÖ<br />
= [u(pa, sa)γνu(pc, sc)]<br />
1<br />
2 sa sc |Msasc| 2 =<br />
= 1<br />
<br />
e2 2 q2 2 <br />
sa sc [u(pc, sc)γµu(pa, sa)(pb + pd) µ ] [u(pa, sa)γνu(pc, sc)(pb + pd)ν] =<br />
= 1<br />
<br />
e2 2 q2 2 <br />
sa sc [u(pc, sc)γµu(pa, sa)][u(pa, sa)γνu(pc, sc)](pb + pd) µ (pb + pd) ν =<br />
= 1<br />
<br />
e2 2 q2 2 LµνT µν ÇÒÓÒÐÔÖÓÙØÙÜØÒ×ÙÖ×<br />
1 <br />
| Msasc |<br />
2<br />
sa sc<br />
2 = 1<br />
2 e<br />
2 q2 ÐØÒ×ÙÖÐÔØÓÒÕÙÖÑÓÒ×ÔÒ ×Ø<br />
Lµν = 1 ÐØÒ×ÙÖÖÓÒÕÙÓ×ÓÒ×ÔÒ ×Ø <br />
<br />
[u(pc, sc)γµu(pa, sa)][u(pa, sa)γνu(pc, sc)]<br />
2<br />
sa sc<br />
0 = γ † ν γ0 = γ0(γ0γ † ν γ0) = γ0γν , ÓÒÙ××<br />
2<br />
LµνT µν <br />
T µν = (pb + pd) µ (pb + pd) ν
ÔÐØ×ÙØÔÖ×ÙÒÔÙÐÖÓÒØÖÓÙÚ ÒØÖÐ×ÙÜÓÙÖÒØ××ØÒÕÙÒØÖÑ×ÙÐÙÐ ØØ×ÔÖØÓÒÕÙ×Ø××ÓÙØÕÙÐÓÒÒÙÒÕÙÑÒØÙÒÔÓØÓÒ ÈÓÙÖÐØÒ×ÙÖÐÔØÓÒÕÙÐÓÖÑ ÒÒØÖÓÙ×ÒØÐ×ÚÐÙÖ×Ü<br />
ÄÔÔÐØÓÒ×ØÓÖÑ×ØÖ×ÙÜÑØÖ×γÓÒÒ <br />
Ó:<br />
ÖÒØÐÐÒÙÐÖÒÑØØÒØÐÔÓÒÙÖÔÓ×Ø×Ò××ØÖÙØÙÖ ÄÚÐÓÔÔÑÒØÙÐÙÐÓÒÙØÐÜÔÖ××ÓÒ×ÙÚÒØÔÓÙÖÐ×ØÓÒ <br />
<br />
<br />
ÓÐÐ×ÓÒ ÇÒÒÐÐÑ××ÐÐØÖÓÒÕÙÔÖÑ×ÖÖ Ú| p<br />
ÄØÙÖ|p ′ ØÖÜÔÖÑ×ÓÙ×ÐÓÖÑÑÓÒØÖÖÓÑÑÜÖ <br />
ËÐÔÖØÙÐÐ×ØØÖ×ÐÓÙÖÔÖÖÔÔÓÖØÙÔÖÓØÐÓÒÔÙØÔÓ×Ö|p ′ ÉÔÖØÒØ×ØÒ×ÙÖ× Ø ØÙÖÒØÐÐÐÙÐdσ/dΩ Ò×Ð×ÐÙ×ÓÒe − ÖÑÓÒÕÙ×ÐØÒ×ÙÖÐØÖÓÒÕÙLµνØ×ÓÒÓÑÓÐÓÙÑÙÓÒÕÙMµνÄ Ö×ÙÐØØ×Ø<br />
<br />
×××ÒÒØ×Ò××ØÖÙØÙÖ ÎÓÖÔÖÜÖÒÒÜÓÙÖ §<br />
<br />
ssÐÒ ÔÔÐÓÑÑÙÒÑÒØ×ØÓÒÅÓØØÇÒØÖÓÙÚÙ××ÐÒÓØØÓÒ dσ<br />
Lµν = 1<br />
2 Tr<br />
<br />
/p = γ µ pµ.<br />
(/p c + m)γµ(/p a + m)γν<br />
Lµν = 2 pcµpaν + pcνpaµ + (q 2 /2)gµν<br />
dσNP<br />
dΩ (e−π + α<br />
) =<br />
2<br />
4 | p | 2 sin 4 (θ/2) cos2 (θ/2) | p′ |<br />
| p | ≡<br />
<br />
dσ<br />
dΩ ss<br />
|Ø|p ′ |Ð×ÕÙÒØØ×ÑÓÙÚÑÒØÐÐØÖÓÒÚÒØØÔÖ×Ð<br />
ÔÓÙÖÐÙ×ÓÒe −<br />
q 2 = −4 | p || p ′ | sin 2 |×ØÙÖÙÐÐÔÖØÙÐÐÑ××MÁÐÔÙØ<br />
(θ/2)<br />
| / | p<br />
| p ′ <br />
| 2 | p |<br />
= 1/ 1 +<br />
| p | M sin2 (θ/2)<br />
|<br />
|p| ≃<br />
π + → e−π +<br />
µ − → e− µ −ÓÒÓØÓÒØÖØÖÙÜØÒ×ÙÖ×<br />
dΩ (e− µ − <br />
dσ<br />
) =<br />
dΩ<br />
dσNP<br />
ss<br />
<br />
1 − q2 tan2 θ/2<br />
2M2 <br />
dΩ
ÒÓÒ×ÙÐÑÒØÔÖÐÙÖ×Ö×ÐØÖÕÙ×Ñ×ÐÑÒØÔÖÐÙÖ×ÑÓÑÒØ× ÑÒØÕÙ×M×ØÐÑ××ÙÑÙÓÒ<br />
θ/2×ØÙØÕÙÐÐØÖÓÒØÐÑÙÓÒÒØÖ××ÒØ<br />
×ÖØ ÜÔÖÑÒØÖÑ×ÚÖÐ×ÅÒÐ×ØÑ×ØÙØØ×ØÓÒ ÄØÖÑÒtan<br />
dσ<br />
dt (e− µ − ) = 2πα2<br />
t2 <br />
<br />
ÝÔÔÔÓÔØÔ×ÓÒØÐ×ÑÓÙÐ××ÕÙÒØØ×ÑÓÙÚÑÒØÐÐØÖÓÒ Ò×ÐÖÖÒØÐÙÑÙÓÒÐ Ä×ØÓÒÖÒØÐÐÒÒÐØÓÒe + ÓÒÒÔÖ ØÓÙØ×Ð×Ñ×××ÓÒØØÒÐ×ØÓÒ×ØÐÓÒÐÔÖÓÙØÓÒ×Ø<br />
dσNP<br />
dΩ (e+ e − → µ + µ − ) = α2<br />
4q2(1 + cos2 <br />
ØÐ×ØÓÒØÓØÐÔÖ<br />
θ)<br />
<br />
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) = 1<br />
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pc)<br />
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Ð×ÒÖØÙÖ×ÅÓÒØÖÐÓ<br />
<br />
a)<br />
e+<br />
e−<br />
b)<br />
e+<br />
e−<br />
e −
ÚÒÑÒØÖØÙØÝÔe + e− → e + e− ÐØØÙÖÄÙÊÆÄ××ÙÜ×ÓÒØÔÖÔÒÙÐÖ×ÐÙÖØÐ<br />
(γ)Ó×ÖÚÔÖ<br />
Ð×ÒØÖÓÖÖ×ÔÓÒÒØ ÄÔÓØÓÒ×ØÖÓÒÒ××ÐÔÖÐÔÖ×ÒÙÒ×ÒÐÒ×ÐÐÓÖÑØÖØ ×ÒÙÜÒÓÖÖ×ÔÓÒÒÒ×ÐØØÙÖØÖÒØÖÐØÒ×ÐÐÓÖÑØÖ<br />
−ÐØØÒÐÓÒØÓÒÒ× ÓÐÐ×ÓÒÙÐÙÙÒØÖÐÐÄe +ØÐe
ÖÓÒ×ÙÑÓÝÒÙÒ×ÓÒÑÇÒÜÑÒÓÖÐ×ÖØÖ×ØÕÙ× ÔØÖ×ØÓÒ×ÖÐØÙÔÒÓÑÒÓÐÓÕÙÐ×ØÖÙØÙÖ× ÈÖØÓÒ×ØÕÙÖ×<br />
ÔÖÓÓÒÇÒÔÖ×ÒØÒ×ÙØÐ×Ò×ÒÑÒØ×ÕÙÓÒÔÙØØÖÖÐØÙ ÐÙ×ÓÒÐØÖÓÒÓÙÑÙÓÒÔÖÓØÓÒØÒÔÖØÙÐÖÐÙ×ÓÒÒÐ×ØÕÙ ÐÒÒÐØÓÒe + ØÙÖ×ØÖÔÖ×ÒØÔÖÐÖÑÑÐÙÖ ÄÓÐÐ×ÓÒÙÒÐØÖÓÒÓÙÙÒÑÙÓÒÔÓÒØÙÐÚÙÒÔÖÓØÓÒÚ×ØÖÙ ÄÙ×ÓÒÐØÖÓÒÒÙÐÓÒ<br />
ÒÚÓÝÖÙÒ×ÙÐØÖÓÒ×ÓÙÑÙÓÒ××ÙÖÙÒÐÔÖÓØÓÒ×ÙÖÔÓ× ÔÖØÙÐ× Ò×ÐÐÓÖØÓÖÇÒÓ×ÖÚÐ×ÔÖÓÙØ×ÐÓÐÐ×ÓÒÐÐÔØÓÒÙ×ØÐ× ÄÜÔÖÒÓÒ××Ø<br />
ÖÙÒÔÖÓØÓÒÚ×ØÖÙØÙÖÈÐÙ×ÙÖ×ÖÑ××ÓÒØÔÓ××Ð× ÄØÖ×ÐÓÖÔÖ×ÒØÐØÕÙÐ×ÓÒÐÔÓØÓÒÚÖØÙÐÓØ<br />
e − → γ → qq<br />
,<br />
electron<br />
k<br />
q<br />
ÖÑÑÐÙ×ÓÒÐØÖÓÒÔÖÓØÓÒ<br />
X<br />
proton p<br />
p’<br />
MÔÖÓØÓÒ<br />
=<br />
•ÐÖÓÒÔÙØ×ÓÖØÖÒØØÐÙ×ÓÒ×ØÐ×ØÕÙÔÖÓØÓÒØMX •ÔÙØØÖÙÒØØÜØÙÒÙÐÓÒÆ△ MX = M(résonance) > Mproton<br />
ÒÐÙ×ÚÒ×ÐÔÖØÓÒØÓÖÕÙÐ×ØÓÒÒÐÙ×ÚÐÙØ ×ÓÑÑÖ×ÙÖØÓÙ×Ð×ØØ×ÒÙÜ××Ð× ÒÕÙ×ÔÖØÒØÒÓÖ×ÇÒÔÖÐÐÓÖ×Ñ×ÙÖÐ×ØÓÒ Ò×ÖØÒ×ÜÔÖÒ×ÓÒÒÑ×ÙÖÕÙÐÐÔØÓÒÙ×Ð×ÔÖØÙÐ×<br />
•ÔÙØÖÔÖ×ÒØÖÔÐÙ×ÙÖ×ÖÓÒ×ÔÖÓÙØ×ÓÒØÐÑ××ØÚW ><br />
Mproton<br />
<br />
0<br />
k<br />
,
ÇÒÔÙØÑ×ÙÖÖÙÒ×ØÓÒÖÒØÐÐd 2σ/dk ′ ÐÓÖØÓÖÔÖÖÔÔÓÖØÐÖØÓÒÙ×ÙØ×ÓÒÒÖÒ×Ð× ÓÐÒÖÙ×Ù×Ø×Ù×ÑÑÒØÐÚÓÒÖÐ×Ò×ÙÒÜÔÖÒ ÓÒÙÖØÓÒÙÐÔØÓÒ×ÓÖØÒØ ×ØÖ×ÓÒÒÐÙ×ÓÒθÒ×Ð<br />
dθÒÓÒØÓÒÐ<br />
ÐÊÙØÖÓÖÕÙÔÓÙÖÓØÜÔÐÓÖÖÐ×ØÖÙØÙÖÑÙÒÙÐÓÒ×<br />
ÔÖØÓÒ× ÄÙÖ×Ö×ÙÐØØ××ÓÒØÓÑÔØÐ×ÚÐÜ×ØÒÙÒ×ØÖÙØÙÖÒØÖÒÐ× ØÐÐ×ÜÔÖÒ×ÓÒØØØÙ×ÙËÄÍËÒ×ÐÒÒ ÄÔÐÙ×ÖÓ×ÓÐÐ×ÓÒÒÙÖe − ÐØÖÓÒ× Î×ØÖ×ÙÖÙÒ×ÙÔÖÓØÓÒ×ÎÄÐÙ<br />
pØÙÐ×ØÀÊÀÑÓÙÖÍÒ×Ù ÑÒÓ×Ø×Ø16 × 1030 cm−2s−1Ä×ÙÜÜÔÖÒ×Ò×ØÐÐ××ÙÖÐÑÒ ×ÓÒØÍËØÀ<br />
•ËÐÑÓÑÒØØÖÒ×ÖØq×ØÔØØÐÒÓÝÙÐ×ÙØÙÒ×ÑÔÐÖÙÐØ ÐÒØÖØÓÒ ÇÒÔÙØÖÕÙÐÕÙ×ÔÖØÓÒ×ÕÙÐØØÚ××ÙÖÐÓÑÔÓÖØÑÒØ<br />
×ØÖÙØÙÖÐÐÐ×ØÓÒÖÒØÐÐÒÙÐÖ×ØÙØÝÔÓÒÒ ÔÖÐÖÐØÓÒ ÐÙ×ÓÒ×ØÐ×ØÕÙÄÐÔØÓÒÔÖÓØÐÒÔÖÚÒØÔ×Ö×ÓÙÖÐ ÔÓÙÖÐÙ×ÓÒe − µ −<br />
dσ<br />
dΩ =<br />
<br />
α2 4 | k | 2 sin 4 (θ/2) cos2 ′ <br />
| k |<br />
(θ/2) 1 −<br />
| k |<br />
q2 tan2 (θ/2)<br />
2M2 ÄØÖÑÒ| k ′ ØØÖÙÙ×ÔÒÙÒÓÝÙÐÓÒ×ÓÒÑÓÑÒØÑÒØÕÙÄØÖÑÒ×<br />
|×ØÙÖÙÐÐÐÄØÖÑÚÐØÒÒØ×Ø<br />
| / | k ÐÔÖÑÖÖÓØÑÙÐØÔÐÔÖ|k ′ |ÓÖÖ×ÔÓÒÐ×ØÓÒ<br />
ÑÓÖÒ×ÐÖÐØÓÒ •ËÐÑÓÑÒØØÖÒ×ÖØq×ØÖÒÐÐÔØÓÒÔÖÓØÐÕÙÖØÙÒÔÓÙÚÓÖ ÒÐÝ×ÐÙÔÖÑØØÒØÖÚÐÖÐ×ØÖÙØÙÖÙÒÙÐÓÒÐÇÒÓØÓÒ ÐØÖÑÓÒØÒÒØÐÖÐØÖÕÙÒÒØÖÓÙ<br />
| / | k<br />
ÅÓØØÔÓÙÖÙÒÒÓÝÙÐÑ××Å×Ò××ØÖÙØÙÖÒÓØÙ×× dσ<br />
dΩ ss<br />
×ÒØÙÒØÙÖÓÖÖØA(q 2 ÓÑÔÖÐÙØÙÖÓÖÑF(q 2 )ÕÙÐÓÒ ÒØÖÓÙØÔÓÙÖÐÔÓÒÐÒ×Ð×ÐÙ×ÓÒe − ÔÖØÑÒØÕÙ § ÑÑÐ<br />
π ÓØØÖÑÙÐØÔÐÔÖÙÒØÙÖÓÖÖØÓÒB(q 2 ÇÒÓØÒØÒÐÑÒØÙÒÜÔÖ××ÓÒÐÓÖÑ<br />
)<br />
dσ<br />
dΩ =<br />
<br />
dσ<br />
×<br />
dΩ ss<br />
A(q 2 ) + B(q 2 ) tan 2 (θ/2) •×ÕÙÐÒÖØÖÒ×Ö×Ø×ÙÔÖÙÖÙÒÖØÒ×ÙÐÐÖÙÐÔÙØ ØÖÓÒ×ØØÙÔÖÙÒÖ×ÓÒÒÚÓÖÔÐÙ×ÙÖ×ÔÖØÙÐ××ØÐÙ×ÓÒ <br />
ÒÐ×ØÕÙÄÑ××ØÚÙ×Ý×ØÑ×Ø×ÙÔÖÙÖÐÑ××ÙÒÙ ÐÓÒØÐÒÖÒ××ÖÔÓÙÖÓÖÑÖ×ØÔÖ×ÙÜÔÒ×ÐÒÖØÓØÐ<br />
ÑÒ×ÓÒ×OÑ<br />
×ÔÓÒÐ
ËØÓÒÖÒØÐÐÒÙÐÖÙ×ÓÒ<br />
ÙÔÖÓØÓÒÒÒØÖØÓÒÓØ×Ø×Ö Ä×ÖØÚ×ÜÔÓ××Ù§ Ð×ØÕÙÐØÖÓÒÔÖÓØÓÒØÐØÖÓÒÒÙØÖÓÒ<br />
ÓÒ×ÖÚØÓÒÐÖÄÜÔÖ××ÓÒ ×ÓÒØÔÔÐÐ×ÐÓÙÖÒØÑ××Ó ÐÒÚÖÒÄÓÖÒØÞØ ÚÒØÔÓÙÖÐÔÖÓØÓÒ×ÙÔÔÓ× Ð<br />
ÈÓÙÖÙÒÔÖÓØÓÒÐÒÓÒÔÓÒØÙÐÐÐ×ØÖÒ×ÓÖÑÒ<br />
ÆÓØÓÒ×ÕÙÒÖ×ÓÒÙ×ÔÒÙÒÙÐÓÒÓÒ×ØÑÒÒØÖÓÙÖÙÜØÙÖ× ÓÖÖØÓÒF1(q 2 ÑÒØÕÙÙÒÙÐÓÒØÐØÙÖ ÖÒÖØÖÑÓÒØÒØÐØÙÖκÓÖÖ×ÔÓÒÒØÐÔÖØÒÓÖÑÐÙÑÓÑÒØ<br />
)ÔÓÙÖÐØÖÑÑÒØÕÙ<br />
)ÔÓÙÖÐØÖÑÐØÖÕÙØF2(q<br />
0ÓÒ<br />
ÄÑÓÑÒØÑÒØÕÙÒÓÖÑÐÙÒÙÐÓÒÓÒØÖÙÑÓÖÐÒØÖØÓÒ<br />
ÐÐÑØq→<br />
ÐÔÖØÙÐÊÔÔÐÓÒ×ÕÙÔÓÙÖÙÒÖÑÓÒÖ×Ò××ØÖÙØÙÖκ Ä×ØÓÒÖÒØÐÐÒÙÐÖ×ØÓÒÒÔÖÐÖÐØÓÒ Ó<br />
ÔÓÙÖÐÔÖÓØÓÒF1(0) = ÔÓÙÖÐÒÙØÖÓÒF1(0) =<br />
Ð×ØÙÖ×A(q 2 Ò×ÐÐØØÖØÙÖÓÒØÖÓÙÚÙ××ÐÓÖÑÕÙÚÐÒØ ×ØÕÙÓÒÔÔÐÐÓÑÑÙÒÑÒØÐ×ØÓÒÊÓ×ÒÐÙØ Óτ =<br />
<br />
ÔÓÒØÙÐj µ (proton) = (+e)NN ′ u(p ′ , s ′ )γ µ u(p, s) exp{i(p ′ − p)x}<br />
j µ (proton) = (+e)NN ′ u(p ′ , s ′ <br />
)<br />
γ µ F1(q 2 ) + iκF2(q2 )<br />
2M σµνqν <br />
u(p, s) exp{i(p ′ − p)x}<br />
2 σ µν = 1<br />
2 i [γµ .γ ν <br />
] ÉÕÙÚÙØσ µν<br />
dσ<br />
dΩ<br />
<br />
1 F2(0) = 1<br />
0 F2(0) = 1<br />
)ØB(q 2 )ÔÙÚÒØØÖÜÔÖÑ×ÒØÖÑ×F1(q 2 )ØF2(q 2 )<br />
= (dσ<br />
dΩ )ss × [F 2 1 (q2 ) + τκ 2 F 2 2 (q2 )] + [2τ(F1(q 2 ) + κF2(q 2 )) 2 ] tan 2 (θ/2) <br />
−q 2 /4M 2
dσ<br />
dΩ<br />
dσ<br />
dΩ<br />
0.03<br />
0.02<br />
ss<br />
0.01<br />
= Β ( )<br />
q2 q2 tan 2 pente<br />
<br />
A } ( )<br />
0.2 0.4 0.6 0.8 1.0<br />
1<br />
2 θ ËØÓÒÖÒØÐÐÒÓÖÑÐ×ÐÙ×ÓÒe −pÒÓÒØÓÒ tan 2 (θ/2)ÔÓÙÖÙÒq 2Ü ÒÓÒÒÙÒÓÒÒÔÔÖÓÜÑØÓÒÐ×ØÓÒ ÚÐØÐÓÖÑÙÐÊÓ×ÒÐÙØÄÐÙÐÙÔÖÑÖÓÖÖÙÒ×ÙÐÔÓØÓÒ Î2Ä×ÔÓÒØ×ÜÔÖÑÒØÙÜÓÒÖÑÒØÐ<br />
dσ<br />
dΩ =<br />
2 dσ GE + τG<br />
×<br />
dΩ ss<br />
2 <br />
M<br />
+ 2τG<br />
1 + τ<br />
2 M tan2<br />
Ó GE(q 2 ) = F1(q 2 ) + κ q2<br />
4M2F2(q 2 )<br />
GM(q 2 ) = F1(q 2 ) + κF2(q 2 <br />
)<br />
GE(q2 )ØGM(q 2 )×ÓÒØÔÔÐ×Ð×ØÙÖ×ÓÖÑÐØÖÕÙØÑÒØÕÙ <br />
<br />
θ<br />
2
Ë×ÔÓÙÖÐÔÖÓØÓÒG p<br />
E ÔÓÙÖÐÒÙØÖÓÒG n ÔÓÙÖ×ÚÐÙÖ×ÔÐÙ×ÔÖ×× ÓµÔصÒ×ÓÒØÜÔÖÑ×ÒÑÒØÓÒÒÙÐÖµNÎÓÖÐØÐÈ <br />
ØÓÒ×ØÒÒ×ÐÔÖÓ××Ù×ÒØÖØÓÒÙÖÓÖÖØØÔÖØÓÒ×Ø ÄÝÔÓØ××ÓÙ×ÒØÒ×ÐÖÐØÓÒÊÓ×ÒÐÙØ×ØÕÙÙÒ×ÙÐÔÓ Ø×ØÜÔÖÑÒØÐÑÒØËÐÓÒÜÐÚÐÙÖq 2ÓÒÔÙØÖÔÖ×ÒØÖÐÖÔ ÙÖ ÐÕÙÄØØÙÖ×ØÔÐÒØÖÐÐØÖÓÒ×ÓÖØÒØØÒØÖÑÒÖ ÈÓÙÖÐ×Ñ×ÙÖ×Ù×ÓÒ×ÙÖÐÔÖÓØÓÒÓÒÙØÐ×ÙÒÐÝÖÓÒ<br />
(θ/2)ØÚÖÖÐÖÐØÓÒÐÒÖÚÓÖ<br />
×ÖØÓÒØ×ÓÒÒÖ<br />
ÔÓÖØdσ<br />
ÐÙ×ÓÒ ÚÖÐ×Ò××ÙÖÐÙÖ ÓÒ×Ð×ÔÖ×ÒØ×ØÙÒÔÖÓØÓÒÚÒØ ÄÒÑØÕÙÐÙ×ÓÒe +<br />
ÄÑ××ÐÐØÖÓÒØÓÒ×ÖÒÐÐÒÖÖ×ÓÒÒÖÒ ØÕÙÐÒÙÐÓÒÐ×Ø×ÙÔÔÓ×ÐÖÖØÔÖ×ÐÙ×ÓÒ<br />
pe<br />
ÉÑÓÒØÖÖÕÙ×ÐÙ×ÓÒ×ØÐ×ØÕÙ <br />
ÇÒ ØØÖÐØÓÒÔÖÑØÓÒØÖÐÖÐÐ×ØØÐÖØÓÒ −1 q ÇÒÒØ×ÓÙÚÒØQ 2 ÒÒØÐ×ÖÐØÓÒ×ØÓÒÓØÒØ<br />
Q 2 = 4 | k |2 sin 2 (θ/2)<br />
1 + 2|k|<br />
M sin2 <br />
<br />
(θ/2)<br />
dΩ / <br />
dσ<br />
dΩ<br />
ssÒÓÒØÓÒtan 2<br />
µÔ<br />
(0) = 1 Gp<br />
M (0) = 1 + κ = 2.7928... =<br />
(0) = 1 + κ = −1.9130... =<br />
E (0) = 0 Gn M µÒ<br />
p → e + pÔÙØØÖÖØÐ×<br />
= (| k |, k) ≡ (| k |, | k |, 0, 0)<br />
pp = (M, 0, 0, 0)<br />
p ′ e = (| k′ |, k ′ )Ú k ′ = | k ′ | (cosθ, sin θ, 0)<br />
p ′ p = (E′ , p ′ )<br />
| k ′ <br />
2 | k |<br />
| / | k |= 1 +<br />
M sin2 (θ/2)<br />
2 = (pe − p ′ e )2 = (| k | − | k ′ |) 2 − (k − k ′ ) 2<br />
≃ −2 | k || k ′ | (1 − cosθ) = −4 | k || k ′ | sin 2 <br />
(θ/2)<br />
= −q2ÔÓÙÖ×ÖÖ××ÖÙ×ÒÒØÒÓÑ
ØÙÖ×ÓÖÑÑÒØÕÙØÐØÖÕÙÙÔÖÓØÓÒØÙÒÙØÖÓÒ
π +<br />
π + π0 π +<br />
π +<br />
p n p p p p<br />
ÔÓÒØÙÐÒØÓÙÖÔÖÙÒÒÙÔÓÒ×ÚÖØÙÐ×ÐÙÛÄ×Ö×ÙÐØØ× ÜÔÖÑÒØÙÜ×ÓÒØÒ×ÓÖÚØØÖÔÖ×ÒØØÓÒ ÁÑÐ×ØÖÙØÙÖÙÔÖÓØÓÒÓÑÑØÒØÐÐÙÒÒØÖÙÖ<br />
p n n p<br />
0.8 fm<br />
ÇÒÚÓØÕÙÐ×ØÔÓ××ÐÓÙÖ×ÙÖÐ×ÚÐÙÖ×ÐÒÖÙ×Ù|k|Ø ÐÒÐÙ×ÓÒθÓÒÓÒ×ÖÚÖÙÒÚÐÙÖÜQ 2×ØÐÔÖÓÙÖ ÙØÐ×ÔÓÙÖÓÒ×ØÖÙÖÐ×ÔÓÒØ×ÜÔÖÑÒØÙÜÐÙÖ Ç×ÖÚÓÒ×ÕÙ<br />
Q2ÔÖÒ×ÚÐÙÖÑÜÑÙÑÔÓÙÖθ= 180¦<br />
Q 2ÑÜ= 4 | k |2<br />
1 + 2|k| ÈÓÙÖÐ×Ñ×ÙÖ×Ù×ÓÒ×ÙÖÐÒÙØÖÓÒÓÒÙØÐ×ÙÒÐÙØÖÙÑ ÐÕÙÇÒÓØÓÒ×ÓÙ×ØÖÖÐÓÒØÖÙØÓÒÙÔÖÓØÓÒØØÙÖÕÙÐÕÙ× ÓÖÖØÓÒ×ÒÙÐÖÖ×<br />
M<br />
dσ<br />
dΩ (Ò) = dσ<br />
dΩ () − dσ<br />
dΩ (Ô) ×ÑÔÐ ×ÜÔÖÒ×ÓÒØÑÓÒØÖÕÙÐ×ØÙÖ×ÓÖÑÔÖ×ÒØÒØÙÒÓÑÔÓÖØÑÒØ<br />
+ δ(ÒÙÐÖ×)<br />
G p<br />
E (q2 ) = G p<br />
M (q2 )/µp = G n M (q2 )/µn = G(q 2 ÓÙÔÐ<br />
)<br />
G(q 2 1<br />
) =<br />
(1 + Q2 /M 2 1<br />
=<br />
v )2 (1 − q2 /M 2 v )2 <br />
<br />
ÄÓÒØÓÒG(q 2 )×ØÒÖÔÖ×ÒØÔÖÙÒÔÐÓÖÖ<br />
G n E(q 2 ) ≃ 0 <br />
π 0
×ØÓÖÖØ 0.84ÎÐÙ×ØÑÒØÙØÙÖÓÖÑÑÒØÕÙÙÔÖÓØÓÒ<br />
= ÚMv ÔÖ×Ù×ÕÙQ 2 ÙÒ×ØÖÙØÓÒÐÒ×ØÖ×ØÝÔÜÔÓÒÒØÐ ÒÓÑÖ×Ù×ØÑÒØ× ÍÒØÙÖÓÖÑÔÓÐÖÓÖÖ×ÔÓÒÒ×Ð×ÔÔÝ×ÕÙÓÖÒÖ<br />
20Î2ÄÙÖ ÑÓÒØÖÙÒÖØÒ<br />
≃<br />
Ç×ÖÚÓÒ×ÕÙÔÓÙÖÙÒÔÖØÙÐÖ ÔÓÒØÙÐÐÓÒG(q 2 ÕÙÐÕÙ×ÓØÐq 2Ä×ÖÐØÓÒ× ÒØÓÙÖÔÖÙÒÒÙÔÓÒ×ÓÑÑÔÖÓÔÓ×ÔÖÙÛÙÖ Ò×ÐÒÙÐÓÒÇÒÒÔÙØÓÒÔ×ÑÒÖÐÔÖÓØÓÒÓÑÑÙÒÓØÔÓÒØÙÐ Ò×ØÔ×ÔÓÒØÙÐÔÐÙ× ÒÕÙÐ×ÒÙÒÒØÖÙÖÔÓÒØÙÐ Ø ÜÔÖÑÒØÐØÕÙÐÔÖÓØÓÒ<br />
)Ð ÈÓÙÖ ÙÒ×ØÖÙØÓÒÐÙÛ∼ r ÓÖÑ(1 + ÊÑÖÕÙÓÒ×ÒÐÑÒØÕÙG(q 2 )ØÒÚÖ× ÓÑÑ1/Q 4Õ ÓÒ Ð×ØÓÒÙ×ÓÒÐ×ØÕÙÖÓØØÖ×ÚØÓÑÑ→ 1 ÒÐ×ØÕÙ 2ÇÒÚÖÖÕÙÐÒ×ØÔ×Ð×Ð×ØÓÒÙ×ÓÒ<br />
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: m ≃ ×ØÔÖ×ÕÙÐÖËÓØP = (| p |, 0, 0, | p<br />
fP + qØÐÐÕÙ(fP<br />
×ØÖ×ÓÒÒÐ×ÐÓÒÓÒ×ÖÐÔÖØÓÒÐÖØ×ÐÒÝÔ×ØØ×ÔÖØÓÒÕÙ× ÔÖØÓÒÒ×ÖÓØÔ×ÙÓÙÖ×ÐÓÐÐ×ÓÒÓÙÕÙÐÐÖ×ØÒÐÐÕÙ<br />
+ ÜØ×ÈÙ×ÕÙf 2P 2 = f2M 2 = m2 0ÓÒÓØÒØ<br />
≃<br />
f = −q 2 /2Pq = Q 2 ÆÓØÓÒ×ÕÙØØÖÐØÓÒ×ØÔÔÐÐÙ××Ò×ÐÖÖÒØÐÙÐÓÖØÓÖ <br />
/2Mν ≡ x<br />
Öq 2ØPq×ÓÒØ×ÒÚÖÒØ×ÄÓÖÒØÞ<br />
<br />
q) 2 = m 2 ≃ 0ÇÒÓÒ×ÖÕÙÐÑ××ØÚÙ
P<br />
xP (1−x)P H<br />
a<br />
d<br />
r<br />
xP+q o<br />
ÖÑÑÐÙ×ÓÒÙÒÐÔØÓÒ×ÙÖÙÒÔÖØÓÒÕÙØÖÒ×ÔÓÖØ<br />
n<br />
ÙÒÖØÓÒxPÐÑÔÙÐ×ÓÒÙÔÖÓØÓÒ<br />
s<br />
ÖÓÒ×ØÓÒÚÓÖ§ÄÔÖÓ××Ù××ÖÓÙÐ×ÙÖÙÒÐÐØÑÔ×ØÖ× ØÖØÓÒÐ×ÔÖØÓÒ×ÖÓÖÑÒØ×ÖÓÒ×ÔÖÙÒÔÖÓ××Ù×ÓÑÔÐÕÙÔÔÐ ÙÒ×ÔÖØÓÒ×ÙÒÙÐÓÒÐ×ÙØÖ×ÔÖØÓÒ×ØÒØ××ÔØØÙÖ×ÔÖ×ÐÒ ÄÖÑÑÐÙÖÖÔÖ×ÒØÐÒØÖØÓÒÙÔÓØÓÒ×ÓÒÚ<br />
ØÒÙÒÖÖÐÙÖÙÔÖÓ××Ù×ÐÑÒØÖÙ×ÓÒ ÑØØÒØÕÙÐÔÖØÓÒ×ØÙÒÔÖØÙÐÖ×ÔÒ Ä×ÔÖØÓÒ×ØÓÖÕÙ×ÓÒÖÒÒØÐ×ÓÒØÓÒ××ØÖÙØÙÖ×ÓÒØØ×Ò Ä×ØÖÙØÙÖÙÔÖÓØÓÒ<br />
×ØÖÓÙÚÖÒ×ÐÔÖÓØÓÒÚÙÒÕÙÒØØÑÓÙÚÑÒØÓÑÔÖ×ÒØÖ ×ÝÑÓÐ×ÔÖqÓqÔÙØØÖÐÙÒ×ÕÙÖ×ÙÓÙ××ÖÐØÖÕÙ ÔÖØÓÒ×Ø<br />
ÒÔÒÒØ×ÔÖÓ××Ù×ÓÒØÐÔÙØØÖÐ×ÇÒÙØÐ×ÐÜÔÖ××ÓÒ Ð×ØÓÒÖÒØÐÐÙ×ÓÒÙÜÖÑÓÒ××ÔÒ zqα ÚÓÖ<br />
ÒÙÒØÐÖÙÔÓ×ØÖÓÒ×ØÒÕÙÔÖzqÁÐÙÒÔÖÓÐØq(x)dx<br />
Ò×ÐÖÐØÓÒØÐÐ×ÕÙ×ÙÚÒØÒ×ÔÖÖÔÐ×ØÓÒÚÒÙÕÙ<br />
ÒØÙÒØÐ×Ù×ØØÙØÓÒα<br />
ûÚÔÙ×ÓÒØÖÐØÚ×ÙÔÖØÓÒØÒ× <br />
→<br />
<br />
<br />
Ð×ÚÖÐ×ÒÑØÕÙ׈s, ˆt,<br />
xPØ(x + dx)PØØÔÖÓÐØ×ØÙÒÔÖÓÔÖØÒØÖÒ×ÕÙÙÒÙÐÓÒ<br />
dˆσ<br />
dˆt = z2 q<br />
q<br />
2πα2 ˆt 2<br />
<br />
1 + û2<br />
ˆs 2
ÕÙÐ×ÚÖÐ×ÒÑØÕÙ××ØÙ×Ò×ÔÙ×ÓÒØÖÐØÚ×ÙÔÖÓØÓÒË ÐÓÒÒÐÐ×Ñ××××ÔÖØÓÒ×ÓÒÔÙØÑÓÒØÖÖÕÙÜÖ<br />
ˆs ≃ xs û ≃ xu ˆt = t = −Q 2 <br />
dtØû 2<br />
ÑÒÒÖÐ×ØÓÒÓÙÐÑÒØÖÒØÐÐ Ò×ÐÙ×ÓÒÒÐ×ØÕÙÓÒ×ÓÒÙÜÚÖÐ×ÒÑØÕÙ×ØÓÒ×Ø<br />
ØÙÒÒØÒØÐ×ÔÖØÓÒ×ÙÜÕÙÖ×ÇÒÓØÒØ ÔÖ×ÒÓÑÔØÒÒ×ÖÒØÒ×ÐÔÖÓÐØq(x)dxÒ××Ù×Ò ÒØÖÒØ×ÙÖxØÒ×ÓÑÑÒØ×ÙÖÐ×ÔÖØÓÒ×ÔÖ×ÒØ×ØØ×ÓÑÑØÓÒ×Ø ÓÒØÖÙØÓÒ×Ñ××××Ø×ÙÔÔÓ×ÒÐÐÄ×ØÖÙØÙÖÒÔÖØÓÒ××Ø ÄÓÒØÓÒδ××ÙÖÐÐ×ØØÐÒØÖØÓÒÐÑÒØÖˆs +<br />
ÊÑÖÕÙÓÒ×ÕÙÐØÙÖ1/t 2 ÔÖÜÖ ÑØÓÒ×ÙÖÐ×ØÖÙØÙÖ×ØÓÒØÒÙÒ×Ð×ÓÑÑØÐÐ×ØÒÔÒÒØ QÓÐ×ÐÒÓÖÒÔÖØÖÐÓÒÔÙØÑÓÒØÖÖÕÙÚÓÖ §<br />
z 2 <br />
ÕÙÐÓÒÓÒ×ÖÐ×ÕÙÖ×ÓÑÑ×ÔÖØÙÐ×ÔÓÒØÙÐÐ×ÇÒÓØÒØÔÖ ÄÖÐØÓÒØÐÐÒØÖÓ×××ØÙÒÓÒ×ÕÙÒÙØ<br />
qxq(x)<br />
ÒÓÑÖ×ÕÙÒØÕÙ×ÄÔÖÓØÓÒÕÙÖ×uØÙÒÕÙÖd ÙÖÖØÒ×ÓÒØÖÒØ×ÔÓÙÖÖÒØÖÕÙÐÒÙÐÓÒpÓÙnØÐ×ÓÒ× ÙÐÐ×ÒÙ×ÓÒÒÐ×ØÕÙÔÖÓÓÒÒ×ÙØÐ×ØÒ××ÖÒØÖÓ ÇÒ×ÒØÖ××ÜØÖÖÐ××ØÖÙØÓÒ×ÔÖØÓÒÕÙ×q(x)×ÓÒÒ×Ö ÜÑÔÐF2 =<br />
<br />
ÓÒ dˆσ dˆσ u2<br />
= =<br />
dˆt ˆs 2 s2 d2ˆσ dt(xdu) = z2 2πα<br />
q<br />
2<br />
t2 <br />
1 + u2<br />
s2 0Ð<br />
<br />
δ(xs + xu + t)<br />
ˆt + û ≃<br />
d2σ 2πα2<br />
=<br />
dtdu t2 <br />
1 + u2<br />
s2 1<br />
dxδ(xs + xu + t)<br />
0<br />
<br />
z<br />
q<br />
2 qxq(x) <br />
= 1/Q4×ØÜØÖÙÖÐÒØÖÐØÓÙØÐÒÓÖ <br />
0<br />
1<br />
2xF1(x) = F2(x) = <br />
x[ 4 1 4 1<br />
u(x) + d(x) + u(x) + d(x) + ...]<br />
9<br />
dx(u(x) − u(x)) = 2 Ø<br />
9<br />
9<br />
q<br />
9<br />
1<br />
0<br />
dx(d(x) − d(x)) = 1
1/2Ó = ËÖÖÝÓÒÕÙ×ØØ×ÓÒ×Ó×ÔÒI3<br />
1<br />
B = dx<br />
0<br />
1<br />
3 (u(x) − u(x) + d(x) − d(x) + s(x) − s(x) + ...) = 1 <br />
1<br />
<br />
1<br />
1<br />
I3 = dx (u(x) − u(x)) − (d(x) − d(x)) =<br />
2 2<br />
0<br />
1 <br />
×q(x)ØØÙÖÙÒÙ×ØÑÒØÐÓÖÑÓØÒÙÙÜÚÐÙÖ×Ñ×ÙÖ× ×ÜÔÖ××ÓÒ××ÑÐÖ×ÔÙÚÒØØÖÖØ×ÔÓÙÖÐ×Ö×ØÖÒØ ÖÑ Ò×ÙØÐÙØÜÔÖÑÖÐ×ØÓÒÖÒØÐÐÙ×ÓÒÒØÖÑ ËØÖ <br />
2<br />
ØÐÖÐÜÔÖ××ÓÒ<br />
eXÓÒÔÙØ ØØ×ØÓÒÈÖÜÑÔÐÔÓÙÖÐÙ×ÓÒÒÐ×ØÕÙep →<br />
dσ<br />
dx (e − p) = 8πα2 <br />
s 4<br />
1 <br />
x [u(x) + u(x)] + d(x) + d(x) + s(x) + s(x)<br />
Q4 9 9<br />
<br />
nÙÒÚÙ×ÕÙÖ×ÑÒÔÓ×ØÙÐÖÕÙ<br />
Ð×ØÓÒÙ×ÓÒ×ÙÖÐÒÙØÖÓÒÔÙØ×ÖÖ Ä×ÝÑØÖ×Ó×ÔÒp −<br />
<br />
up(x) = dn(x), dp(x) = un(x), sp(x) = sn(x) ËÓÒØÒØÓÑÔØ×ÖÐØÓÒ×Ø×ÓÒÓÒÚÒØÕÙu=up d = dp s = sp<br />
dσ<br />
dx (e − n) = 8πα2 ÄÑÒ×ÑÒØÖØÓÒÓÒ××ØÒ××Ò×ÐÒÙÒÓ×ÓÒÐ ÅÒØÓÒÒÓÒ×ÕÙÐ×ØÖÙØÙÖÙÒÙÐÓÒÔÙØØÖ×ÓÒÐÑÒØÔÖÐ<br />
<br />
s 4 1<br />
x d(x) + d(x) + [u(x) + u(x) + s(x) + s(x)]<br />
Q4 9<br />
9<br />
ÐÚÓÖÔØÖ ØÝÔÒÙÐÓÒØÒØÒÙÐÓÒÒÖ×ÓÒÐÒØÙÖÔÖØÙÐÖÙÓÙÖÒØ ÖÐØÓÒÌÓÙØÓ×ÓÒ×ØÑÒÒØÖÓÙÖØÖÓ×ÓÒØÓÒ××ØÖÙØÙÖÔÖ ÏÄ×ØÓÒÖÒØÐÐÔÖÒÙÒÓÖÑÚÓ×ÒÐÐÐ Ù×ÓÒÒÐ×ØÕÙÔÖÓÓÒÒÙØÖÒÓνℓN<br />
ÄÖÒÕÙÒØØÓÒÒ×ÓÐÐØ×ÔÖÑ×ØÖÖ×ÖÒ×ÒÑÒØ×<br />
→ νℓXØνℓN → ℓXÓℓ=e, µ<br />
ÕÙØØÚ×ÓÒÔÖØÓÒÕÙÙÒÙÐÓÒ×ØÓÖÖØÒÔÖÑÖÔÔÖÓÜÑØÓÒ ÒÒØÖÓÙ×ÒØÐÓÑÔÓ×ÒØÐÙÓÒÕÙÙÒÙÐÓÒÉ×ØÙ××ÔÐÜ ×ÙÖÐ×ØÖÙØÙÖÒØÖÒÙÒÙÐÓÒÄÙÖÑÓÒØÖÙÒÔÖÑØÖ×ØÓÒ× ×ØÖÙØÓÒ×ÔÖØÓÒÕÙ×ÒÓÒØÓÒÐÚÖÐÜÄØÓÖÉÓÒÖÑ<br />
ÔÐÕÙÖÐÚÓÐØÓÒÙ×ÐÒÚ×Ð×ÙÖÐÙÖÐ×ÓÙÖ××ÙÖØØÙÖ
ÜÑÔÐÔÖÑØÖ×ØÓÒ×ÓÒØÓÒ×ÕÜÐÓÙÖÜÓÒÒ<br />
ÐÓÒØÖÙØÓÒ×ÐÙÓÒ×<br />
1)<br />
2)<br />
3)<br />
F 2<br />
F 2<br />
F 2<br />
x<br />
1/3<br />
F2 quarks <strong>de</strong> la mer<br />
ØÓÒ××ÙÚÒØ× ÁÒØÖÔÖØØÓÒÐÓÒØÓÒ×ØÖÙØÙÖÙÒÔÖÓØÓÒÒ×Ð××ØÙ ÕÙÖ×Ð×ÚÐÔÓ××ÐØÖÖ×ÕÙÖ×ÐÑÖ ÙÒ×ÙÐÕÙÖÔÖÔÖÓØÓÒ ÕÙÖ×ÐÖ× ÕÙÖ×Ð×<br />
4)<br />
quarks <strong>de</strong> valence<br />
x<br />
petit x 1/3<br />
<br />
1/3<br />
1<br />
x<br />
x
ÐÓÖÑ××ØÖÙØÓÒ×ÔÖØÓÒÕÙ×Ò×Ð×ÙÒ×ÙÐÕÙÖÔÖÖÓÒ ÖÔÖ×ÒØÒØÐÔÖØÓÒØÓÖÕÙÄÙÖÓÒÒÙÒÒØÖÔÖØØÓÒ ÕÙÖ×ÐÖ× ÖÖ×ÔÖ×ÕÙÖ×ÚÖØÙÐÐ×ÕÙÖ×ÐÑÖ ÕÙÖ×Ð×ÕÙÖ×ÚÐÒØÕÙÖ×Ð×ÚÐÔÓ××ÐØ<br />
ÄÒÒÐØÓÒe + ÙÔØÖÓÒÔÖ×ÒØÐÒÒÐØÓÒe + ÐÔØÓÒÒØÐÔØÓÒe + e − → γ ∗ → ℓℓ , Óℓ ÊÔÔÐÓÒ×ÕÙÐ×ØÓÒÖÒØÐÐÒ×ÐÑe + ÐÓÖÑÚÓÖ ØÐÓÒÐÖÓÒÓÖÑØÓÒÙÒÓ×ÓÒÒØÖÑÖÔÙØØÖÖØ×ÓÙ× <br />
ØÐ×ØÓÒÒØÖ×ÓÙ×ÐÓÖÑ <br />
Ú <br />
ÔÖÐÐØØÓÒ×ØÒ×Ò×ÐÐÔÓÐÖ×ØÓÒ×ÐÔØÓÒ×ÔÖÓÙØ× ÄÒÆÈÒÕÙÕÙÐ××ÙÜ×ÓÒØ×ÙÔÔÓ××ÒÓÒÔÓÐÖ××ØÕÙÐÔ ÊÔÔÐÓÒ×ÒÓÖÕÙÐ×ÖÐØÓÒ×ØÒ×ÓÒØÔ×ÔÔÐÐ×Ð<br />
q<br />
Ù×ÓÒe + ×ÔÖØÓÒ×ØÓÖÕÙ×ÓÒØØØ×Ø×ÜÔÖÑÒØÐÑÒØ×ÙÖÐÚÓe + ÇÒÔÙØÓÒ×ÖÖÐÜØÒ×ÓÒ×ÔÖØÓÒ×ÐÖØÓÒÒÒÐØÓÒ<br />
ÇÒØÒØÓÑÔØÐÖÖØÓÒÒÖÙÕÙÖÒØÙÒØÒÓÙÚÙ = Óq(q)×ÝÑÓÐ×ÙÒÕÙÖÒØÕÙÖÖÐØÖÕÙzqÚzq Ð×Ù×ØØÙØÓÒ×ÙÚÒØα 2 §ÜÔÖÑÒØÐÑÒØÐ×ÔÖØÓÒ×ÚÓ×ÒÒÐØÓÒÒÐÔØÓÒ×ØÒ ÐÙÔÖÐÑÒ×ÑÐÖÑÒØØÓÒÐÔÖÓ××Ù××ØØÙÒØÐÙ ÔÙÚÒØØÖÑ×ÒÚÒÚÐÓÖÑØÓÒÖÓÒ×ÐÕÙÐÐÐ×ÓÒÒÒØ ÊÔÔÐÓÒ×ÕÙÐ×ÕÙÖ×Ò×ÓÒØÔ×Ó×ÖÚÐ×ÓÑÑÔÖØÙÐ×ÐÖ×ÁÐ×<br />
ÖÓÒ×ÑÔÐÕÙÐÑ×ÒÓÙÚÖÙÒÔÔÖÐÐØØÓÒÓÑÔÐÜØ <br />
e− → γ∗ → qq<br />
e−ÚÔÖÓÙØÓÒÙÒÔÖ = e, µÓÙτ e−ÙÔÖÑÖÓÖÖ dσÆÈ dΩ (e+ e − → ℓℓ) = α2<br />
4q2(1 + cos2 <br />
θ)<br />
σÆÈ(e + e − → ℓℓ) = 4πα2<br />
·<br />
3<br />
1<br />
s<br />
2 = 4E2×ÙØ2E×Ù= √ s<br />
e− → e + e− e− →<br />
µ + µ −Ò×ÙÒÐÖÔÐÒÒÖÐÔÒÒÒÖÐÒ1/s×ØÚÖ<br />
e + e − → γ ∗ → qq<br />
2/3ÓÙ<br />
→ z2 qα2Ò×Ð×ÖÐØÓÒ×Ø
ÖÕÙÖØÐÔÔÐØÓÒÖØÖ××ÐØÓÒÕÙØ×Ä×ÔÖ×ÑÙÓÒ××ÓÒØ ×ÔÖÖÖÐÔØÓÒ××ÒØÖÒ×××ÒÖÓÒ×××ÒØÐÐÑÒØ ÖÒÔÓÙÚÓÖÔÒØÖØÓÒÒ×ÐÑØÖÄ×ÔÖ×ØÙ×ÓÒØÔÐÙ×Ð× ×ÑÒØÖÓÒÒ××Ð×ÚÙÐÖÐØÚÐÓÒÙÙÖÚÐÔØÓÒØ×ÓÒ<br />
ÔÕÙÑÒØÐÔÖ×ÒÙÑÓÒ×ÖÓÒ×ÔÓÙÖÕÙÙÒÚÒÑÒØ×ÓØÐ×× ÚÒÑÒØ×ÙØÑÙÐØÔÐØÒ×Ð×ÜÔÖÒ×ÙÄÈÓÒÑÒØÝ ÓÑÑÒÒÐØÓÒÖÓÒÕÙÍÒÙØÖ×ÓÙÖÑÔÓÖØÒØÖÙØÓÒ ÔÓÒ×ÄÚÓÒÒÐØÓÒÒÖÓÒ×ÓÒÒÒ××ÒÔÖÒÔÐÑÒØ×<br />
e +<br />
γ<br />
e− ÖÑÑÙÔÖÓ××Ù×ÙÜÑÑ<br />
γ<br />
Ò×ÑØÖÐ×ÒØÒÖÓÒ×ÒÒÖÐÐÖØÓÒÒÖ×ÓÙ×ØÖØÙÜ ×ØÒÒÖÔÖÙÒ×ÔÖØÙÐ×ÒÒØ×Ð×ÙÜÔÓØÓÒ×ÒØÖ××ÒØ ÔÖ×ÒØÔÖÐÖÑÑÐÙÖ ×ØÓÒ×ØØÙÔÖÐÔÖÓ××Ù×ÓÑÑÙÒÑÒØÔÔÐÙÜÑÑÕÙ×ØÖ ÍÒÔÓØÓÒÖÝÓÒÒÑÒØÚÖØÙÐ<br />
ÖÓÒÕÙ×ÙØÑÙÐØÔÐØØÚÙÒÐÖÖØÓÒÐÒÖ×ÔÓÒÐ<br />
+ÔÓÙÖ×ÙÚÒØÐÙÖÓÙÖ×ÐÑÒØÚ×ØÖ×<br />
ÑÔÓÖØÔÖÐ×ÖÓÒ××ÓÒØ××ÒØÐÐÑÒØÙ×ÐÒÒÐØÓÒÖÓÒÕÙ ØÒØÓÒÒ×Ò×ÐÒÐÙ×ÙÔÔÒØØÐØØÓÒÔÖ ÐÔÔÖÐÐÈÖÓÒ×ÕÙÒØÓÒÔÙØÑØØÖÕÙÐ×ÚÒÑÒØ×ÔÙÖÑÒØ Ä×Ö×ÙÐØØ×ÒÐÝ××ÓÒØÒÖÐÑÒØÔÖ×ÒØ××ÓÙ×ÐÓÖÑÙÒÖÔÔÓÖØ<br />
×ÙÜ×ØÔØØÐe −ØÐe<br />
R = σ(e+ e− →ÖÓÒ×<br />
σ(e + e− → µ + µ − )<br />
= NÖÓÒ× NÑÙÓÒ×· εÑÙÓÒ×<br />
ÐÑÑÔÖÓÕÙ×ØÓÒÓÒÒ× ÓNÖÓÒ×ØNÑÙÓÒ××ÓÒØÐ×ÒÓÑÖ×ÚÒÑÒØ××ÐØÓÒÒ×Ø×ÖÔÔÓÖØÒØ <br />
εÖÓÒ×
ÙÔÖÐÐÐÔÖÓÖÑÑ××ÑÙÐØÓÒÔÖÑØÓÅÓÒØÖÐÓ ÆÓØÓÒ×ÕÙÐÖÔÔÓÖØRÒ×Ò×ØÒÔÒÒØÐÐÙÑÒÓ×ØÒØÖ<br />
εÖÓÒ×ØεÑÙÓÒ××ÓÒØÐ×ØØ×Ñ×ÙÖ×ØÙÖ×ÓÒØØØÖÑÒ×<br />
ÔÖÑØÖÕÙÐÙÖØÓÒÒØÖ×ÐÓÒÚÓÙÐØÔ××ÖÖØÑÒØNÖÓÒ× Ð×ØÓÒσ(e + Ò×RØÒØÓÒÒÐÓÒÒ××ÒÔÔÖÓÓÒÕÙÓÒ×ÖØÖ×ØÕÙ× Ð×ÖØÖ×ØÕÙ×ÔÝ×ÕÙ×ØØ×ØÓÒ×ÓÒØÓÖÖØÑÒØÖØ×<br />
σ(e + e − → µ + µ − )ÚÓÖÔØÖ<br />
e − →ÖÓÒ×)ÚÓÖ§ÈÖÐÐÙÖ×ÓÒÓÒ×ÖÕÙ<br />
R=σ(e + e− → hadrons)/σ(e + e− → µ + µ − ÐÜ×ØÒÙÒÑÒ×ÑÖ×ÓÒÒÒØÓÑÑÐÙÖÔÖ×ÒØÒ×ÐÖÔÕÙ ÄÙÖÑÓÒØÖÓÑÑÒØÐÖÔÔÓÖØRÚÖÒÓÒØÓÒÐÒÖ<br />
√ )ÒÓÒØÓÒE×Ù=<br />
ÐÙÖØÕÙÔÙØØÖÖÔÖ×ÒØÔÖÐÖØÓÒÒÒ<br />
s/2ËÙÖÐÙÙÖÔÕÙÓÒÓ×ÖÚ×Ô××ÙÖÒØ<br />
s/2<br />
Ù×Ù√<br />
e + e − → γ ∗ →Ö×ÓÒÒ(J PC = 1 −− ÄÑ××ÐØØÖ×ÓÒÒÒØ×ØÐÐÔÓ×ØÓÒÙÔ××ÒÓÑÖ×ÕÙÒØÕÙ× ÑÒØ×ÖØÒØÒ×ÐÒØÙÖ×ÔÖØÙÐ×ÒÐ×Ó×ÖÚ×ØÒ×ÐÙÖ×<br />
P×ÓÒØÙÜÙÔÓØÓÒ××ÑÓ××ÒØÖØÓÒØÖÔÔÓÖØ×ÑÖÒ<br />
<br />
ℓℓ(+γ)<br />
) → ÖÓÒ×(+γ)<br />
ÙÒÚÙÙÒÖ×ÓÒÒ×ÔÕÙÔÖÜÑÔÐÐφÐJ/ψØÐΥØØ ÔÖÓÔÓÖØÓÒ× ÍÒÙØÖØÖÑÖÕÙÖÒ×ÐÖÔÕÙÐÙÖ×ØÐÔÖ×Ò<br />
J,<br />
<br />
ÔÐÖ×ÔÔÖÓÜÑØ×Ò×Ð×ÚÐÙÖ×ÙÖÔÔÓÖØRÕÙÔÐÖ×ÑÓÖÒØ
e+<br />
ρ, ω, φ<br />
e−<br />
f ÖÑÑÙÑÒ×ÑÖ×ÓÒÒÒ×ÐÒÒÒÐØÓÒe + e− ×ØÖÙØÙÖÒ×ÐÖ×ØÑ×ÒÖÐØÓÒÚÐ××ÙÐ×ÔÖÓÙØÓÒ×ÔÖ×<br />
→<br />
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)µ<br />
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γ5)ψn) × (ψeγµ(1 − γ5)ψνe)<br />
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2<br />
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ν µ<br />
e ν<br />
e ν e<br />
µ<br />
W W<br />
µ<br />
µ<br />
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→ e + νe + νµ<br />
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V<br />
Γ(π → eν)<br />
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2 2<br />
me mπ − m<br />
·<br />
mµ<br />
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m2 π − m2 2 = 1.2 10<br />
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j µ = uℓγ µ<br />
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<br />
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d u<br />
s u ÖÑÑ×××ÒØÖØÓÒ××ÑÐÔØÓÒÕÙ×π − → µ − + νµ<br />
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e− → νe + W − , µ − → νµ + W −<br />
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u<br />
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ÓÖØ Ð<br />
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ν µ<br />
W<br />
µ
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θC×ØÔÔÐÓÑÑÙÒÑÒØÐÒÐÓËÚÐÙÖÔÙØÖØÖÑÒ ÄÓÙÔÐÙÚÖØÜ×ÕÙÖ××ØÔÓÒÖÔÖÙÒØÙÖcosθCÔÓÙÖÐ<br />
= −d sin θC + s cosθC<br />
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θCÔÓÙÖÐØÝÔsWuÄÓÙÔÐÙÚÖØÜ× ØÝÔdWuØÔÖÙÒØÙÖsin Γ(K− → µ −νµ) Γ(π− → µ −νµ) ≈ Γ(Λ → pe−νe) Γ(n → pe− <br />
νe)<br />
≈ g4 sin 2 θC<br />
g4 cos2 = tan<br />
θC<br />
2 Ä×ÝÑÓÐ≈×ÒÕÙÓÒÐ×× ÔÒÒØÙÔÖÓ××Ù××ØÙÖ×ØÒØÔÖ×ÒÓÑÔØÓÒÓØÒÙ Ø×ØÙÖ×ÒÑØÕÙ×ÓÒÒÙ×Ø<br />
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θC<br />
ÔÖÓ××Ù×ÖÓÒÕÙ×ØÐÔØÓÒÕÙ×ÈÖÜÑÔÐ<br />
θC = (12.8 ± 0.2)¦ <br />
Γ(n → pe−νe) Γ(µ − → e−νµνe) ≈ g4 cos2 θC<br />
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GF<br />
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= g2 − g2 cos2 θC<br />
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g 2 cos 2 θCØÖÒ×ØÓÒÚ∆S<br />
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θW(0 < θW < π<br />
gγ<br />
g W ±<br />
= sin θW ;<br />
cosθW =<br />
gγ<br />
gZ<br />
= sin θW cosθW<br />
MW ±<br />
MZ<br />
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j 0µ Ð= ufγ<br />
µ (g f<br />
V − gf<br />
Aγ5 )uf<br />
W
µ<br />
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) ≈ (d cos θc + s sin θc)(d cosθ + s sin θc) =<br />
= dd cos 2 θc + ss sin 2 θc + (ds + sd) sinθc cosθc<br />
j 0 (s ′ s ′ <br />
) ≈ (s cosθc − d sin θc)(s cosθc − d sin θc =<br />
= ss cos 2 θc + dd sin 2 θc − (ds + sd) sin θc cosθc<br />
→ π ± ννÙÒÖÔÔÓÖØ →<br />
µ + µ −ÐÖÔÔÓÖØÑÖÒÑÒØÑ×ÙÖ×Ø
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u<br />
s<br />
Z<br />
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f<br />
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s<br />
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±<br />
= e ± , µ ± , τ ±<br />
e −ÒØÖ<br />
e + + E e − ≃ 90Î<br />
e − →
ffÒ×ÐÖÓÒÐÖ×ÓÒÒÔÙØØÖÖÔÖ×ÒØÔÖ <br />
σ(e + e − → Z → ff) = 12π Γe + e−Γff M2 <br />
Z Ós<br />
ÐÓÖÑ Ò×ÐÖÙÑÓÐ×ØÒÖÓÒÔÙØÜÔÖÑÖÐÐÖÙÖÔÖØÐÐ×ÓÙ×<br />
=<br />
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= ØÒØÓÒÒÐÐÑÒØÇÒÔÓ××ÓÙÚÒØNνΓνν<br />
×ØÐÐÖÙÖÔÖØÐÐÐÒ×ÑÐ×ÚÓ×ÖÓÒÕÙ×××Ð×ÐÒÓØØÓÒ Ó×ÖÚ×ÖØÑÒØΓ=Γuu +<br />
1×ÓÒÚÙØÐÚÐÙÖ Ä×ØÓÒ×ØÜÔÖÑÒÎ−2ÔÖÕÙÓÒÔÓ×c = ÒÒÖÒÔÖÜÑÔÐÐÙØÒØÖÓÙÖÙÒØÙÖ(c) 2 <br />
s<br />
(s − M2 Z )2 + M2 ZΓ2 −)2×ØÐÖÖÐÒÖØÓØÐÒ×ÐÑZ<br />
(Ee + + Ee<br />
Γe + e−×ØÐÐÖÙÖÖØÖ×ØÕÙe + e− → ZÐÐÐZ→ e + e− Γ ff<br />
ff×ØÐÐÖÙÖÔÖØÐÐÐÚÓZ→<br />
N f<br />
= C×ØÙÒØÙÖÓÙÐÙÖNC<br />
gV gA×ÓÒØÐ×ÓÒØ×ÓÙÔÐÙÓÙÖÒØÐÒÙØÖØÐÙ<br />
ff = Nf<br />
CGFM 2 Z<br />
6π √ (g<br />
2<br />
2 V + g2 A )(1 + δ) <br />
=<br />
ΓZ = Γe + e − + Γµ + µ − + Γτ + τ − + NνΓνν + Γ<br />
U D×ØÒÒ×ÐØÐÙ<br />
Γcc + Γ dd + Γss + Γ bb<br />
≡ 2Γ UU + 3Γ DD<br />
= 0.389... TeV 2 · nbarn
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ÒÕÙ× ÓÙÔÐ 0.002ÎÐÐÖÙÖÔÖØÐÐÐÒ×ÑÐ×ÚÓ×ÖÓ<br />
• Γ= ±<br />
×ÖÚ×ÓÒÔÙØÖÖÐÒÓÑÖÑÐÐ×ÒÙØÖÒÓ××ÒØÕÙΓνν/Γℓ + 1.99ÔÖØÓÒÙÑÓÐ×ØÒÖÐÖ×ÙÐØØÓØÒÙÚÓÖ×Ø<br />
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Ò×ÑÔÙØ×ÒØÖÔÖØÖÐÙÒÖÑÑÙ×ÓÒÓÖÖÄÙÖ ÐÐÙÖ×ÐÜ×ØØÐ×ÔÖÓ××Ù×Ú ÒÑÒØØÖÒØÓÒØÐÑ 1ØÙÒÔÖÓ<br />
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2×ÙÜÔÖÓ××Ù×ÓÒØØÒÐÝ××Ò<br />
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ÓÒØÔÓ×ØÙÐÐÜ×ØÒÙÒÔÖØÒÖÐÕÙÖcÙÕÙÖsÐ×ÙÜÑÐÐ×<br />
ÓÒÑÓÒØÖÙÜÜÑÔÐ×ÙÒÔÖÓ××Ù××ÑÐÔØÓÒÕÙÚ∆S = ××Ù×ÔÙÖÑÒØÖÓÒÕÙÚ∆S =<br />
ÕÙÖ×( u d )Ø( )ÓÖÑÒØÙÒÒ×ÑÐÔÖÐÐÐÙÜÙÜÑÐÐ×ÐÔØÓÒ×( Ø( νµ )ÐÓÖ×ÓÒÒÙ×Ä×ÙØÙÖ×ÓÒØÑ××ÙÖÖÓØÕÙÒÓÙÚÙÕÙÖ<br />
µ Ö×ÙÐØØØÓÒÖÑÔÖÐÑ×ÙÖÖØÐÚÓe + ÖÝÓÒÒÑÒØÑ×ÔÖÐÙÒ×ÔÖØÙÐ×××ÙÜ Ø×ÒÐ ËÄÐ×ÓÛÂÁÐÓÔÓÙÐÓ×ÄÅÒÈÝ×ÊÚ ×ÝÔÓØ××ÖÒÒØÔÐÙ×ÐÐØÕÙÙÙÒÑÒ×ØØÓÒÕÙÖÒÚØÒÓÖ <br />
<br />
ÑÒØÓÒÒÖÕÙÐÕÙ×ÙÒ×ÒØÖÙÜ<br />
0.0023ÎÐÐÖÙÖØÓØÐØØÚÐÙÖ×ØØÖÐÒÐÝ×<br />
0.0021ÎÐÚÐÙÖÒØÖÐÐÑ××<br />
• MZ = 91.1876 ±<br />
• ΓZ = 2.4952 ±<br />
• Γℓ + ℓ− = 0.08398 ± 0.00009ÎÐÐÖÙÖÔÖØÐÐÐÚÓÐÔØÓÒÕÙℓ + ℓ− , µ ± , τ ±ÚÓÖÙÖÓÒØØÐÓØ<br />
±0.0015ÎÐÐÖÙÖÐÒ×ÑÐ×ÚÓ×ÒÙØÖÒÓ×ÒÓÒÓ<br />
1.744<br />
• Γinv = 0.499<br />
Nν = 2.984 ± 0.008.<br />
ℓ− =<br />
104Ó×ÔÐÙ×ÐÕÙÐØÙÜÐÙÐÐÙÖÑÑÕÙÐ×××ÙÔÔÓ×Ö c νe<br />
s e )<br />
e− ννγÓγ×ØÙÒÔÓØÓÒ<br />
→
ÐØÓÖÓØÐ×Ø×ØÐ×ÓÒÖÒÒØÐ×ÓÙÖÒØ×ÒÙØÖ×ÁÐ×ÓÒØ ×Ù×ÔØÐØÖÚÓÐÒ×ÐÒØÖØÓÒÐÁÐ×ÓÒØÒ×ÙØÔÖ×ÒÓÑÔØ ×ØØÖ×ÐÓÙÖÔÖÖÔÔÓÖØÙÜØÖÓ×ÙØÖ×ØÕÙÐÔÓÖØÙÒ×ÚÙÖÒÓÙÚÐÐ ÐÖÑÕÙ×ØÓÒ×ÖÚÒ×Ð×ÒØÖØÓÒ×ÓÖØØÐØÖÓÑÒØÕÙØ<br />
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′Ð×ÓÙÔÐ×ÖÓ×× ÒØÖÓÙØ×Ð×ÓÙÔÐ×ÓÙÖÒØ×Ö×uWd<br />
a)<br />
′ØcWs<br />
W<br />
µ<br />
s<br />
d<br />
u u<br />
W<br />
s<br />
d<br />
s<br />
W<br />
u ν µ<br />
d<br />
u<br />
W<br />
s<br />
d<br />
W W<br />
µ<br />
d<br />
s<br />
u ÖÑÑÐ×ÒØÖØÓÒK 0 → µ + µ −ÖÑÑ× ÐÓ×ÐÐØÓÒK 0 ←→ K 0<br />
ØÒÒØÓÑÔØ×ÓÙÔÐ×ÙÜÚÖØÜÓÒ×ØÓÒÙØÙÒÑÔÐØÙÐ ËÐÓÒÖÚÒØÙÜÖÑÑ×ÐÙÖ ÓÒÚÓØÕÙÐÙØÓÒÖ<br />
Ò×ÕÙÖ×uØcÓÙÔÐ×ÙÜÚÖØÜuWd, uWs, cWd<br />
ØcWs<br />
ÓÖÑ〈µ + µ − |M|K0 〉 ≈ g 4 ÓÐ×f(...)×ÓÒØ×ØÙÖ×ÒÑØÕÙ×ÐÙÐÐ×ÓÒØÒÒØÒØÖÙØÖ×Ð× <br />
sin θc cosθc [f(mu, MW, ...) − f(mc, MW, ...)]<br />
ÐÒÙÕÙÖuÐÙÙÕÙÖcÓÑÑÖÔÖ×ÒØÒ×ÐÙÖ Ò<br />
<br />
ÔÖÓÔØÙÖ××ÕÙÖ×uØcØÐÙÙÓ×ÓÒW<br />
b)
ÐÑÔÐØÙÔÖØ×ÖØÒÙÐÐ ÒØÖÐÖÓØÐÐÑØ×Ð×ÕÙÖ×uØcÚÒØÐÑÑÑ×× ÄØÙÑÒ×ÑÁÅÔÔÖØÒ×ÐÖÒ×ÙÜØÖÑ× ÈÓÙÖÐÓ×ÐÐØÓÒK 0 ÕÙÓÒÕÙØÖÚÖØÜÑÔÐÕÙÒØÙÒÕÙÖÐÑÒ×ÑÁÅ×ØÓÒÓÔÖÒØ ÐÒØÖØÐ×ÓÖØÙÖÑÑØÐÑÔÐØÙÔÖØ×ÒØÖÓÙÚÓÖØÓÖ<br />
ÔÐÓÖØÓÒÐÔÝ×ÕÙ×ÖÓÒ×ÖÑ× ÜØÖÑÑÒØØØÒÙ ÚÐÓÙÚÖØÙÑ×ÓÒJ/ψ×Ý×ØÑccØÔÖÐ×ÙØÚÐÜ Ä×ÔÖØÓÒ×ÙÑÓÐÁÅÓÒØØÖÓÙÚÙÒÖÐÐÒØÓÒÖÑØÓÒÒ<br />
Ò ×ØÒÖ ÜØÒ×ÓÒÐØÖÓ×ÑÑÐÐÖÑÓÒ×ÄÑÓÐ<br />
ÑÐÐÕÙÖ×ÄÙÖÑÓØÚØÓÒØÑÒÖÐÑÓÐÓÁÅ ÔÓÙÖÝÒÐÙÖÐÚÓÐØÓÒÈÓ×ÖÚÒ××ÔÖÓ××Ù×ÓÙÖÒØÐ ÃÓÝ×ØÅ×ÛÓÒØÔÓ×ØÙÐÐÜ×ØÒÙÒØÖÓ×Ñ ×ØÖÚÒØÐÓÙÚÖØÙÑ×ÓÒJ/ψØÐÐÙ<br />
ÙÑÓÐÙÑÒÑÙÑØÖÓ×ÑÐÐ×ÕÙÖ××ØÐÖÖÒÑÒØÕÙÓÒ ØÖÓÙÚÒÓÖÒ×ÐÑÓÐ×ØÒÖØÙÐÚÐ×ØÖÓ×ÓÙÐØ× ÖÖÔÔЧÁÐ×ÓÒØÑÓÒØÖÕÙØÑÒÑÒØÑÔÐÕÙÐÜØÒ×ÓÒ ÐÔØÓÒτ<br />
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ÄÑÐÒ×ØØ×ÒÖÙÖ×ÖÐ×ÙÔÖÚÒØÔÖÐÑØÖÙÒØÖ2×2<br />
ÂÂÙÖØØÐÈÝ×ÊÚÄØØ Ô×ÕÙÓÒÔÔÐÐÑØÖÓÃÓÝ×Å×ÛØÕÙÓÒÔÙØ ØÂÙÙ×ØÒØÐÈÝ×ÊÚÄØØ ÒÐ×<br />
Ô×ÔÙØØÓÙÓÙÖ×ØÖ×ÓÖÚÙÒÑØÖ2×2ÒÜÔÐÓØÒØÐ×ÓÒØÖÒØ×ÙÒØÖØ ØÒÖÒ××ÒØÐÔ×ÙÒØØÕÙÖ ÅÃÓÝ×ÃÅ×ÛÈÖÓÖÌÓÖÈÝ× ÁÐÙØÖÒÖÓÑÔÐÜÙÒ×ÐÑÒØ×ÐÑØÖÚÙÒØÖÑÔ×ØØ <br />
<br />
←→ K 0ÐÐÙÐ×ØÔÐÙ×ÓÑÔÐÕÙÕÙ××Ù×ÔÖ<br />
<br />
u<br />
d ′<br />
<br />
c<br />
s ′<br />
MC =<br />
t<br />
b ′<br />
cosθC sin θC<br />
− sin θC cosθC
ÖÖ×ÓÙ×ÐÓÖÑ ⎛<br />
MCKM =<br />
⎜<br />
⎝<br />
c12 c13 s12 c13 s13e −iδ13<br />
ÒÜ×ÑÐÐ×ÒÖØÓÒ×<br />
δ13Ô×0 ≤<br />
−s12c23 − c12s23s13e iδ13 c12c23 − s12s23s13e iδ13 s23c13<br />
s12s23 − c12c23s13e iδ13 −c12s23 − s12c23s13e iδ13 c23c13<br />
⎠ ⎞<br />
⎟<br />
Úcij cos θijsij = sin θij0 ≤ θij ≤ π<br />
j 2<br />
Ò×ÐÖØØÜØÒ×ÓÒÐÓÙÖÒØÐÖÕÙ×ÖÚØ<br />
0ÓÒÖØÖÓÙÚÓÑÑ×ÓÙ×Ò×ÑÐÐ×<br />
i,<br />
δ13 ≤ 2π<br />
→ ÆÓØÓÒ×ÕÙÐÐÑØθ13Øθ23 ÐÑÒØ×ÐÑØÖÓÒÒØÒØθ12θC<br />
j +µ<br />
W = (u c)γµ (1 − γ 5 ÚÒØ<br />
<br />
d<br />
)MC<br />
s<br />
j +µ<br />
W = (u c t)γµ (1 − γ 5 <br />
ØÖÓ×ÕÙÖ×ÒÖÙÖ×ÇÒÔÙØÓÑÑÓÑÒØ×ÖÔÔÐÖÐ×ÓÙÔÐ×ÑÔÐÕÙ× ÁÐÓÒÒÐÙÙÒÑÒ×ÑÁÅÒÖÐ×ÙÜØÖÓ×ÕÙÖ××ÙÔÖÙÖ×ØÙÜ<br />
⎛ ⎞<br />
Ò×Ð×ÐÑÒØ×MCKMÒÖÚÒØ<br />
d<br />
)MCKM ⎝ s ⎠<br />
b<br />
⎛<br />
d<br />
⎝<br />
′<br />
s ′<br />
b ′ <br />
⎞ ⎛<br />
⎞ ⎛ ⎞<br />
ÑØÖ×ØÙÒØÓÒ×ÖÐÐÕÙÐÐÓÒØÖÚÐÐÒÓÖÖÖÔÄ<br />
Vud Vus Vub d<br />
⎠ = ⎝ Vcd Vcs Vcb ⎠ ⎝ s ⎠<br />
ØÐÈÜÔÓ×ÒØÐÐ××ÓÙÖ×ÒÓÖÑØÓÒ×ÙØÐ××Ä×ÐÑÒØ×Ð ÖØÒ×ÐÑÒØ×VijÔÙÚÒØØÖÖÒÙ×ÓÑÔÐÜ×ÔÖÐÓÜÙØÖÑ<br />
ÔÖÑÖÐÒØÐØÖÓ×ÑÓÐÓÒÒÕÙÓÒØØØÖÑÒ×ÖØÑÒØÔÖ<br />
Vtd Vts Vtb b<br />
ÓÒØÖÒØ×ÙÒØÖØÔÖÑØØÒØÑÐÓÖÖÐÓÒÒ××ÒÐÑÒØ×ÔÓÙÖ ×ØÐÓÖÑÖÓÑÑÒÒ×ÐØÐÈØÙÐÐÓÒØÖÓÙÚÙØÖ×ÓÖÑ×ÕÙÚ 1× ≃ ÐÒÐÝ×ÔÖÓ××Ù××ÒØÖØÓÒÓÒØÙÒÓÖÑ×ÑÔÐÖc13<br />
Ô×e ±iδ13ÄØÖÑÒØÓÒÜÔÖÑÒØÐ×ÖÒØ×ÐÑÒØ×<br />
ÐÒØ×Ò×ÐÐØØÖØÙÖÒØÖÙØÖ×Ò×ÐÖØÐÓÖÒÐÃÓÝ×ØÅ×Û
Ð×ÕÙÐ×ÓÒÑÒÕÙÒÓÖÑ×ÙÖ×ÖØ×ÔÖ××ÄÑÐÐÙÖ×ØÑØÓÒ Ä×ÓÖÖ×ÖÒÙÖÖØÒÖ×ÓÒØ ÄØÐÈÓÒÒÐ×ÒØÖÚÐÐ×ÓÒÒ ØÙÐÐ×ØÙÐÔ×Ò×Ð×ÐÑØ×δ13 =<br />
| ×ÙÖÐ×ÚÐÙÖ×|Vij<br />
ÄÖÐØÓÒÒØÖÐØÙÖÔ×e ±iδ13ØÐÚÓÐØÓÒÈÔÙØ×ÓÑÔÖÒÖ Ò×ÒØÖÖÒÙØÓÖÑȨ̀ØÙÜÔÖÓÔÖØ×ÐÓÔÖØÙÖÌ ÚÓÐØÓÒÌÒØÖÒÐÚÓÐØÓÒÈØÖÔÖÓÕÙÑÒØÊÔÔÐÓÒ×ÙØÖ ÔÖØÕÙÐÓÔÖØÓÒÌÓÒ××ØÒ×ÐÒ×ØØ×ÒØÐØÒÐÓÑÒ<br />
§ÊÔÔÐÓÒ×ÕÙÐÒÚÖÒÐÑÐØÓÒÒ×ÓÙ×ÈÌÑÔÐÕÙÕÙÐ<br />
ÓÑÔÐÜ××ÓÒØÑÓ××ÓÙ×ÐÓÔÖØÓÒÌØÈ ÕÙ×ÖÔÖÙØ×ÙÖÐ×<br />
ÐÖÓÖÒÕÙÖ×ØÔÖ×ÒØÑÒØÑÝ×ØÖÙ× ÖÒ×ÒÑÒØ×ÙÖÐÓÖÒÐÚÓÐØÓÒÈÒ××ÔÖÓ××Ù×ÓÙÖÒØ ÓÙÖÒØ×ÓÖÖ×ÔÓÒÒØ×ØÐÑÔÐØÙØÖÒ×ØÓÒ ØØÔÔÖÓ×Ø××ÒØÐÐÑÒØÔÒÓÑÒÓÐÓÕÙÐÐÒÓÙÖÒØÔ× ÐÓÔÖØÓÒÓÒÙ×ÓÒÓÑÔÐÜËÐÔ×δ13 = 0Ð×ÐÑÒØ×Vi,j<br />
⎛<br />
0.975 0.22<br />
⎞<br />
0.003<br />
| Vij |= ⎝ 0.22 0.974 0.04 ⎠<br />
0.01 0.04 0.999<br />
<br />
1.02 ± 0.22ÖÒ
ÄÒØÖØÓÒÓÖØÐÑÓÐ×ÕÙÖ×Ø<br />
ÐÑÒØ×ÖÓÑÓÝÒÑÕÙÕÙÒØÕÙÉ<br />
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ÖÓÒ×ÓÒÒÙ×ÚÒØÐÑ×ÒÚÒ×ÖÓÒ×ÖÑ×Ð×ÖÓÒ× ÚÒØØÐ××××ÙÖÐ×ÐÙÖ×ÔÒÔÖØJ PÒÓØØ×ÒÓÒØ×ÙÔÐØ× ÐÝÔÖÖ ÙÖ× I3ÓI3×ØÐØÖÓ×ÑÓÑÔÓ×ÒØ I3ÓY×Ø<br />
ÐÓÑÔÓ×ÒØÑÒ×ÐÐÑØÙÒÔÖØ×ÝÑØÖ×Ó×ÔÒÓÒÙÖØ<br />
u−dØd−d×ÓÒØÐ×ÑÑ××ÐÓÒ×ØÚ<br />
Ò×ÐÔÐÒS − Ð×Ó×ÔÒS×ØÐØÖÒØÐØÖÒØÚÑÒØÒ×ÐÔÐÒY −<br />
ÕÙÖuØÐÕÙÖdÓÒ×ØØÙÒØÐ×ÐÑÒØ××ÇÒÚÚÐÓÔÔÖ× Ä×ÝÑØÖ×Ó×ÔÒ×ØÖØÔÖÐÖÓÙÔ×ÔÐÙÒØÖËÍ Ø ÓÒØÐ<br />
≃ ÇÒÚÙÕÙÓÒÔÙØ××ÓÖÐÓÒ×ÖÚØÓÒÐ×Ó×ÔÒÙØÕÙmu ØÙØÕÙÐ×ÒØÖØÓÒ×u−u<br />
Ò×ÐÔÖÓÒÔÖÖÔÄÓÒØÓÒÙÕÙÖsÑÒËÍ ÙÖÓÙÔËÍ ×ÚÙÖÔÓÙÖÐ×ØÒÙÖÙÖÓÙÔËÍ ÓÙÐÙÖÒ× ÓÒÔÖÐ<br />
mπ<br />
ÙÒØÖ ÓÒÙØÐ×ÐØÖÑ×ÝÑØÖ×ÔÒ<br />
ØÖÓ×ÕÙÖ×ØÖÓ×ÒØÕÙÖ×××ÑÐÐ×ÙÜÖÝÓÒ××ÓÒØÓÖÒ××Ò ÕÙÖ××ÑÐÐ×ÙÜÑ×ÓÒ×ÓÖÑÒØ××ÒÙÐØ×Ø×ÓØØ×Ð×ØØ×Ð× ×ÒÙÐØ×ÓØØ×ØÙÔÐØ×Ä×ÔÖÓÔÖØ×ÖÓÙÔÔÖÑØØÒØÜÔÐÕÙÖ Ò×ÐÖ×ÖÔÖ×ÒØØÓÒ×ÙÖÓÙÔËÍ Ð×ØØ×Ð×ÒØÕÙÖ ÐÒÖÐ×ØÓÒËÍÆÓÆ><br />
ÖÖÐ×ÔÒØÐÑÓÑÒØÒÙÐÖÓÖØÐ×ÕÙÖ×ÓÑÑÒØÖ×ÔØÖÐ×ØØ× ÐÐ××ØÓÒÑÒØÓÒÒ××Ù× Ò×ØØÔÔÖÓÓÒÖÒÓÒØÖÖØÒ×ÔÖÓÐÑ×ÔÜÓÑÑÒØÒÓÖÔÓ<br />
ÐÓÒØÜØÙÑÓÐ×ÕÙÖ×ÙÒØØÔÙÖ×ØÖÔÖ×ÒØÔÖÐÙÒ×ÚØÙÖ× ÄÖÔÖ×ÒØØÓÒÓÒÑÒØÐËÍ ËÍ ×Ó×ÔÒÐ×ÝÑØÖ×Ó×ÔÒ ×ØÐÐÙÓÙÐØ×ÔÒ Ò×<br />
> ØÕÙÖÑÓÑÑÒØØÒÖÓÑÔØÐÖ×ÙÖÐ×ÝÑØÖms<br />
×<br />
ÖÙÖ×ËÍ ÆÓØÓÒ×ÕÙÙÒÖÔÖ×ÒØØÓÒÔÙØÒÔ×ØÖÖÐÐÑÒØÓÙÔÔÓÙÖ×Ö×ÓÒ×ÜØ ÈÖÜÑÔÐÐ×ÒÙÐØËÍ <br />
<br />
|u〉 Ò×ØÔ×ÓÙÔÔÖÐ×ÖÝÓÒ×J P +ÕÙ×ÜÔÐÕÙÒÖ×ÓÒÐÒØ×ÝÑØÖÐÙÖÓÒØÓÒÓÒØÓØÐ<br />
Ø3<br />
2<br />
mproton = mneutron<br />
<br />
1<br />
=<br />
0<br />
<br />
0<br />
|d〉 =<br />
1<br />
± = mπ0 md<br />
mu,d...<br />
= 1+<br />
2
ÓÐ×ÝÒØÜ <br />
ØÙÙÑÓÝÒÙÒÓÔÖØÙÖÙÒØÖU ÄÖÓØØÓÒÙÒÒÐθÙØÓÙÖÐÖØÓÒˆnÒ×Ð×ÔÐ×Ó×ÔÒ×Ø<br />
<br />
ξ<br />
Ò×Ð×Ð×ÓÓÙÐØÁ <br />
Ä×τi×ÓÒØÐ×ÒÖØÙÖ×ÙÖÓÙÔÐ×ÑØÖ×ÈÙÐ ÔÔÐÕÙU×ÙÖÐØØξÓÒÓØÒØÐØØØÖÒ×ÓÖÑ ËÐÓÒ<br />
ξ ′ ÈÜÒ×Ð×ÙÒÖÓØØÓÒÙØÓÙÖÐ×ÓÜÝÓÒÓØÒØÚÓÖ <br />
Ù×ÐÙÒØÖØUÐÒÓÖÑ×ØÓÒ×ÖÚ <br />
= Uξ<br />
<br />
ÄØÙÙÖÓÙÔ×Ø×ÓÙÚÒØÒÓÒ×ÖÒØÐØÖÒ×ÓÖÑØÓÒÒÒØ×ÑÐ<br />
ÑØÖ×ÈÙÐ ÄÙÒØÖØÑÔÓ×ÕÙÐ×ÒÖØÙÖ××ÓÒØØÖÒÙÐÐ×ØÒÐ××<br />
ÔÖÑÔÖ ÔÐÙ×Ð×ÖÓØØÓÒ×ØÓÒÐ×ÒÖØÙÖ×ÒÓÑÑÙØÒØÔ×ÕÙ×Ü<br />
×ØÕÙÓÒÔÔÐÐÙ×ÙÐÐÑÒØÐÐÖËÍ<br />
ÌÖ(τi) =<br />
ÈÖÜÑÔÐ Ò×Ð×Ð×Ó×ÔÒÓÒÐ××ÒÒÖÐÑÒØÔÖÐ×ÐØØÖ×τ τi<br />
<br />
u<br />
=<br />
d<br />
| ξu | 2ÐÔÖÓÐØÕÙÐÕÙÖ×ÓØØÝÔu<br />
<br />
U =⇒ UI(ˆnθ) = exp{−iI · ˆnθ}<br />
U1 (ˆnθ) = exp{−i<br />
2<br />
1<br />
2 τ · ˆnθ} <br />
ξ ′ <br />
′ u<br />
=<br />
d ′<br />
<br />
cosθ/2 − sin θ/2 u<br />
=<br />
sin θ/2 cosθ/2 d<br />
(ξ ′ ) † (ξ ′ ) = ξ † U † Uξ = ξ † <br />
ξ<br />
ξ ′ = ξ + δξ = (1 − iδθI · ˆn)ξ =⇒ (1 − i<br />
1<br />
I= 2<br />
1<br />
2 τ · ˆnδθ)ξ <br />
<br />
0<br />
[Ii, Ij] = iεijkIkÓε123,231,312 = 1Øε213,132,321 = −1<br />
<br />
1<br />
2 τi , 1<br />
2 τj<br />
<br />
1<br />
= iεijk<br />
2 τk
Ä×ÓÔÖØÙÖ×I 2ØIzÔÖÑØØÒØÐ××ÖÙÒØØÐÐÙÖ×ÚÐÙÖ× ÔÖÓÔÖ×Ä×I±ÔÖÑØØÒØØÖÒ×ØÖÒØÖÐ×ØØ×ÑÑI 2 ÈÓÙÖÒÓØÖÜÑÔÐÚ <br />
τ1 =<br />
1<br />
0 1<br />
1 0<br />
<br />
u = 1<br />
<br />
, τ2 =<br />
1 0<br />
0 −i<br />
i 0<br />
1<br />
<br />
1 0<br />
, τ3 =<br />
0 −1<br />
2 τ3<br />
2 0 −1 0 0<br />
<br />
1<br />
2 τ3<br />
<br />
d = 1<br />
<br />
1 0 0<br />
=<br />
2 0 −1 1<br />
1<br />
<br />
0<br />
= −<br />
2 −1<br />
1<br />
2 d<br />
τ± = 1<br />
2 (τ1 ÔÔÐÕÙÓÒ×ÙÜÚØÙÖ××<br />
<br />
0 1 0 0<br />
± iτ2)Óτ+ = , τ− =<br />
0 0 1 0<br />
<br />
0 1 1<br />
0 0 1 0<br />
ÍÒÓÔÖØÙÖ×ÑÖ×ØÐÙÕÙÓÑÑÙØÚØÓÙØÒÖØÙÖÙÖÓÙÔ<br />
τ+u =<br />
= 0 , τ−u =<br />
= = d<br />
0 0 0<br />
1 0 0 1<br />
<br />
0 1 0 1<br />
0 0 0<br />
τ+d =<br />
= = u , τ−d =<br />
= 0<br />
0 0 1 0<br />
1 0 1<br />
ÓÒÓÒÔÙØÓÒ×ØÖÙÖ×ØØ×ÔÖÓÔÖ×I 2ØÙÒIjÓÜÓÜ×ØÒ<br />
<br />
I3|I, I3〉 = I3|I, I3〉<br />
2 (I+I− + I−I+) + I 2 3 = 1<br />
2 {I+, I−} + I 2 <br />
3 ÈÓÙÖÙÒÖÔÖ×ÒØØÓÒÓÒÒIÐ×ÚÐÙÖ×ÔÖÓÔÖ×I 2×ÓÒØI(I 1)ÈÖ + ÜÑÔÐÓÒI 2 = 0ÔÓÙÖI= 0 1/2(1/2 + 1)ÔÓÙÖI = 1/2Ø<br />
<br />
= 1<br />
<br />
1<br />
2<br />
<br />
= 1<br />
2 u<br />
<br />
ÇÒÔÙØÚÖÖÕÙÒ×ËÍ ÐÓÔÖØÙÖI 2ÓÑÑÙØÚI1, I2ØI3<br />
[I 2 ÖI3 <br />
, Ij] = 0 Ij = 1, 2, 3<br />
I 2 Ò×ËÍ |I, I3〉 = I(I + 1)|I, I3〉<br />
ÐÓÔÖØÙÖ×ÑÖI 2ÚÙØ<br />
C ≡ I 2 = 1
Ð×ÕÙÖ×uØdÇÒÒØÐÖÔÖ×ÒØØÓÒ ÊÔÖ×ÒØØÓÒ× ÔÖ ±1/2ÔÖÑØÖÔÖ×ÒØÖ Ø2 Ä×ÓÓÙÐØI = 1/2Ú××ÔÖÓØÓÒ×I3<br />
Ù2ÔÖ ÈÓÙÖÐÔÖÒØÕÙÖ×Ð×ØÒØÖ××ÒØÒÖÐÖÔÖ×ÒØØÓÒÓÒÙ <br />
<br />
ØÚÑÒØÓÒÔÙØÑÓÒØÖÖÖÓÑÑÜÖÕÙÐÓÙÐØ<br />
<br />
2<br />
×ØÖÒ×ÓÖÑÔÖÖÓØØÓÒÒ×Ð×ÔÐ×Ó×ÔÒÓÑÑÐÓÙÐØ×ÕÙÖ× <br />
′ ×ØÙÒ×ØÙØÓÒÔÖØÙÐÖÙÖÓÙÔËÍ ÐÐÒ×ÖØÖÓÙÚÔ×ÚÐ× <br />
= Uφ<br />
ÓÖÑØÓÒÙÒØÖUÒ×Ð×ÔÖ×ÒØÙÒÖÓØØÓÒÒ×Ð×Ô×Ó×ÔÒØ ÇÒÚÙÙÔØÖÕÙ×ÐÓÒØ×ÙÖÙÒ×Ý×ØÑÔÝ×ÕÙÙÒØÖÒ× ÄÖ×ÙÖËÍ ×Ó×ÔÒ ÖÓÙÔ×ËÍÆÓN<br />
×Ð×Ý×ØÑØÖÒ×ÓÖÑÒÔÙØÔ×××ØÒÙÖÙ×Ý×ØÑÒØÐÐÓÖ×<br />
><br />
Ð×Ó×ÔÒ ØÖÔÖÓÕÙÑÒØÐÓÒÙØÙÒÐÓÓÒ×ÖÚØÓÒ××ÓUÈÓÙÖ<br />
×Ý×ØÑ×ÓÒØØ× ÑÔÐÕÙÐÓÒ×ÖÚØÓÒÐ×Ó×ÔÒÁÒÚÖ×ÑÒØÓÒÔÙØÑÔÖÑÖÙÒÖÓØØÓÒ Ù×Ý×ØÑÒ×Ð×ÔÐ×Ó×ÔÒ×Ò×ÕÙÐ×ÔÖÓÔÖØ×ÒÖØÕÙ× ÓÔØÐÓÒÚÒØÓÒÓÒÓÒËÓÖØÐÝÒ×ÐÐØØÖØÙÖÓÒØÖÓÙÚÙ××ÐÓÒÚÒØÓÒ ÄÓÔÖØÓÒÓÒÙ×ÓÒÖÒØÖÓÙØÙÒØÙÖÔ×ÖØÖÖÆÓÙ×ÚÓÒ×<br />
[H,<br />
ξ = ( u d )<br />
φ<br />
ÓÔÔÓ×2 ≡<br />
<br />
−d<br />
u<br />
<br />
=<br />
<br />
u<br />
2 ≡<br />
d<br />
2<br />
<br />
d<br />
≡<br />
−u<br />
<br />
d<br />
φ =<br />
−u<br />
<br />
<br />
[H, U] = 0<br />
I] = 0
ÈÖÜÑÔÐÑÒÓÒ×ÙÒÕÙÖ×ÓÐ×ØÙÖÔÓ×<br />
〈q|H0|q〉 = mq =Ñ××ÙÕÙÖq<br />
ËÐÓÒØÙÒÖÓØØÓÒÒÐδθÒ×Ð×Ô×Ó×ÔÒÓÒÓØÒØÐØØØÖÒ× ÓÖÑq ′<br />
Å× |q<br />
〈q<br />
0ÓÒÙØÕÙ ÓÒ×[H0, I] =<br />
〈q ′ |H0|q ′ 〉 = mq ′ = 〈q|H0|q〉 ÓÒ×ÖÓÒ×ÑÑÙÒ×Ý×ØÑÕÙÖ{q}ÒÒØÖØÓÒÒ×ÐØØ×Ó×ÔÒ<br />
I3〉ËÐÀÑÐØÓÒÒÕÙÖØ×Ý×ØÑÓÑÑÙØÚIÓÒÓØÒØÐÑÑ <br />
= mq<br />
H0ÓÒÒÐÑ××Ù<br />
|I, ÒÖÔÓÙÖØÓÙ×Ð×ÑÑÖ×ÙÑÙÐØÔÐØ×Ó×ÔÒ|I, −I〉,<br />
ÈÖÜÑÔÐÔÓÙÖÐ×ØØ×ÖÙÔÓÒÓÒÔÖØÕÙ<br />
ËÐ×Ý×ØÑ×ØÙÖÔÓ×Ò×ÐÐÓÖØÓÖH =<br />
ÕÙ ÓÒÒÓÒ×ÙÒÓÒØÖÜÑÔÐÓÒ×ÖÓÒ×ÐÓÔÖØÙÖÖÐØÖÕÙQØÐ<br />
|Ò×ÑÐÔÖØÙÐ×〉 ÒÒÖÐ<br />
Q|Ò×ÑÐ×ÔÖØÙÐ×〉 =<br />
[Q,<br />
′ <br />
〉 = U|q〉 ≈ (1 − iI · ˆnδθ)|q〉 ′ |H|q ′ ÓÖ<br />
〉 ≈ 〈q|(1 + iI · ˆnδθ)H(1 − iI · ˆnδθ)|q〉<br />
(1 + x)H(1 − x) = H + xH − Hx + O(x 2 ÕÙÓÒÒ<br />
)<br />
〈q ′ |H|q ′ 〉 = 〈q|H|q〉 + 〈q|[H, I]|q〉 + O(δθ 2 <br />
)<br />
|I, −I + 1〉, ..., |I, +I〉<br />
×Ý×ØÑ{q}ØØÓÙ×Ð×ÑÑÖ×ÙÑÙÐØÔÐØÓÒØÐÑÑÑ×× <br />
〈I, −I|H|I, −I〉 = 〈I, −I + 1|H|I, −I + 1〉 = ... = 〈I, +I|H|I, +I〉<br />
mI(I3 = −I) = mI(I3 = −I + 1) = ... = mI(I3 = +I)<br />
m(π + ) = m(π 0 ) = m(π − ),×Ð×ÝÑØÖ×Ó×ÔÒ×ØÔÖØ<br />
<br />
Ò×ÑÐÖ×<br />
<br />
<br />
I] = 0
ØÐ×ÑÑÖ×ÙÒÑÑÑÙÐØÔÐØ×Ó×ÔÒÓÒØ×Ö×ÖÒØ×<br />
Q|π + 〉 = +1|π + 〉 Q|π − 〉 = −1|π − 〉 Q|π 0 〉 = 0|π 0 〉<br />
ÙÒÓÒÒÖÐ×ÙÒØÖÑÐÀÑÐØÓÒÒÓÒØÒØÐÖÐØÖÕÙ ØÀÑÐØÓÒÒÔÙÒØÖÒÚÖÒØ×ÓÙ×Ð×ØÖÒ×ÓÖÑØÓÒ×Ò×<br />
ÓÒ× Ð×Ô×Ó×ÔÒ×ØÐ×ÙØÖÑÕÙÜÔÖÑÐÒØÖØÓÒÑHem<br />
ÖØÐ×Ý×ØÑ{q}ÒÒØÖØÓÒÓÒ <br />
∝<br />
Q1Q2<br />
ØÐ×Ó×ÔÒ×ØÙÒ×ÝÑØÖÖ×ÔÖÐÒØÖØÓÒÑÈÖÜÑÔÐÐÑ×× <br />
Hint<br />
ÕÙÔÙØ×Ô××ÖÒ×{q}ÓÒ×ÖÓÒ×Ð×ÖÒ×Ñ××Ò×Ð× ×Ý×ØÑ×ÙÔÓÒØÙÓÒ ×ÙÜÔÓÒ×Ö×ÖÕÙÐÕÙ ÇÒÔÙØÖÖÕÙÒØÖØØÖ×ÙÖ×ÝÑØÖÈÓÙÖÓÒÒÖÙÒ ÐÑ××ÙÔÓÒÒÙØÖ<br />
ÈÓÙÖÐ×Ý×ØÑÙÔÓÒ<br />
ØØÖÒÔÙØØÖÙÖÒØ×ÓÒØÖÙØÓÒ× <br />
×ÓÒØÐ×Ö××ÙÜÕÙÖ××ØÒÑÓÝÒÒ〈R〉<br />
δud<br />
Ò×Ð×ÔÓÒ×ÐÓÒØÖÙØÓÒ×ØÒÙÐÐÖÓÒÓÒ×ÖÕÙÒ ÓÐ×µi×ÓÒØÐ×ÑÓÑÒØ×ÑÒØÕÙ×ØmiÐ×Ñ××××ÕÙÖ×<br />
ÐÒØÖØÓÒÐØÖÓ×ØØÕÙÔÖÓÔÓÖØÓÒÒÐÐQ1Q2/〈R〉ÓQ1ØQ2 ÐÒØÖØÓÒÑÒØÕÙÔÖÓÔÓÖØÓÒÒÐе1, µ2 ÑÓÝÒÒÙÓÙÖ×ÙØÑÔ×ÐÓÒØÒÙÒÕÙÖuØd×ØÒØÕÙÔÓÙÖπ ± Øπ 0ÇÒÔÙØÒÐÓÖÐÓÒØÖÙØÓÒ Ä×ÓÒØÓÒ×ÓÒ×ÔÓÒ××ÓÒØÚÓÖÔÐÙ×ÐÓÒ Ò×ÕÙÚÒØÙÒØÖÑØ ÔÓÙÖÐ×ÓÒØÖÙØÓÒ×∝ Q1Q2<br />
π + Ø ≡ du 0 ≡ 1 Ä×ÚÐÙÖ×ÔÖÓÔÖ×Q×ÓÒØÜÔÖÑ×ÒÙÒØÐÖÙÔÓ×ØÖÓÒ <br />
<br />
√ (uu − dd)<br />
2<br />
= md − mu<br />
= HIF + Hem<br />
[Hint, I] = [HIF, I] + [Hem, I]<br />
<br />
δπ = m π + − m π 0 = 4.6ÅÎ<br />
π<br />
0<br />
= 0<br />
∝ Q1<br />
Q2<br />
m1 m2
ÐÙÐÓÒ×Ð×ÔÖÒÑØÑØÕÙQ1Q2<br />
〈π + |Q1Q2|π + 〉 = du <br />
Q1Q2 ÄÓÒØÖÙØÓÒ×ØÓÒÒÔÖ ×ÓÒØÓÖØÓÓÒÙÜ ÊÔÔÐÓÒ×ÕÙÐ×ØØ×|uu〉Ø dd<br />
ÔÖ ÓÒÓØÒØ〈R −1 ÓÒ×ÖÓÒ×ÑÒØÒÒØÐ×Ý×ØÑÙÓÒ<br />
ÐÖ× Ò××ÓÒÙÒÓÒØÖÙØÓÒ ÖÓÒÙÒÓÒØÒÙÖÒØÒÕÙÖ× <br />
K<br />
<br />
<br />
2 1<br />
<br />
du = + du <br />
2<br />
du =<br />
3 3 9<br />
〈π0 |Q1Q2|π0 〉 = 1 <br />
<br />
uu − ddQ1Q2uu − dd =<br />
2<br />
1 <br />
〈uu|Q1Q2|uu〉 +<br />
2<br />
dd <br />
<br />
Q1Q2 <br />
1<br />
dd + 0 + 0 = −<br />
2<br />
4<br />
<br />
1<br />
− = −<br />
9 9<br />
5<br />
18<br />
π + 2<br />
:<br />
9 〈R−1 〉π, π 0 : − 5<br />
18 〈R−1 〉π<br />
<br />
2 5<br />
δπ = + 〈R<br />
9 18<br />
−1 〉π = 1<br />
2 〈R−1 〉π<br />
〈R−1 〉×ØÙÒÔÖÑØÖØÖÑÒÖÜÔÖÑÒØÐÑÒØÐδπÓÒÒ<br />
9.2ÅÎ<br />
〉π =<br />
δK = mK + − mK0 = −4ÅÎ<br />
ÓÒ<br />
+ Ñ×××mu ms md + ms<br />
<br />
δK<br />
ËÐÓÒÑØÕÙ〈R −1 ×ÓÒØÐ×ÓÖÖ×ÖÒÙÖ×ÄÑÑÔÔÖÓÔÓÙÖÐ×ÖÝÓÒ×ÓÒÒÐ×<br />
〉ØÅÎ <br />
<br />
×ØÑØÓÒ×δud = 4ÅÎØ〈R ÊÔÔÐÓÒÔÓ×c = 1<br />
Q1Q2 = 2<br />
3<br />
+ : su K 0 : sd<br />
1<br />
3<br />
= 2<br />
9<br />
−1<br />
3<br />
1<br />
3<br />
= −1<br />
9<br />
= mu + ms − md − ms + 2<br />
9 〈R−1 〉K − 1<br />
9 〈R−1 〉K<br />
= mu − md + 1<br />
3 〈R−1 〉K<br />
〉K ≈ 〈R−1 9.2ÅÎÓÒÓØÒØ<br />
〉π =<br />
−4 = mu − md + 1<br />
3 9.2 ; δud 7ÅÎ = md − mu ≃<br />
−1
ÊÔÖ×ÒØØÓÒÑÒ×ÓÒ ËÍ1ÐÐ×ØÙØÐÔÓÙÖ ×Ó×ÔÒ ØØÖÔÖ×ÒØØÓÒÓÒÖÒÔÖÜÐ×ÓØÖÔÐØI = ÖÖÐ×Ý×ØÑ×ÔÓÒ×π + Ä×ÒÖØÙÖ××ÓÒØ <br />
⎠<br />
ØÙÒØÐÔÖÓÙØÖØ 1ÔÙØ×ÙÖÐÖÔÖ×ÒØØÓÒÓÒÑÒØÐ Ò ÄÖÔÖ×ÒØØÓÒI =<br />
ÓÖÑ×ÔÖÐÓÙÔÐ×ÙÜ×ÔÒÙÖ×ψØφÐÓÖ×ÐÖÓØØÓÒRÓÒÒ ÇÒÔÙØÑÓÒØÖÖÜÖÕÙÐÓÖÑ×ÒÖØÙÖ××ØÓÖÒØ<br />
(ψ⊗φ)0,1Ò××ÒØÐ×ØØ××ÒÙÐØØØÖÔÐØ<br />
1 ÜÔÖÑÒØÖÑ×ÑÒ×ÓÒ×ÔÖÓÙØ×ÖØ2 ⊗<br />
ÊÓØØÓÒ××ÔÒÙÖ× <br />
= Ú×Ú×ÒØ×Ψ0,1<br />
( 1<br />
2 ×ÑØÖÈÙÐ<br />
, π0 , π−ÖÔÖ×ÒØÔÖÐ× <br />
⎛ ⎞ ⎛ ⎞ ⎛ ⎞<br />
1 0 0<br />
⎝ 0 ⎠ , ⎝ 1 ⎠, ⎝ 0 ⎠<br />
0 0 1<br />
I1 = 1<br />
⎛ ⎞<br />
0 1 0<br />
√ ⎝ 1 0 1 ⎠ , I2 =<br />
2<br />
0 1 0<br />
1 ⎛ ⎞ ⎛ ⎞<br />
0 −i 0 1 0 0<br />
√ ⎝ i 0 −i ⎠ , I3 = ⎝ 0 0 0<br />
2<br />
0 i 0 0 0 −1<br />
1<br />
⊗<br />
2 2 = 0 ⊕ 1 <br />
2 = 1 ⊕ 3<br />
Ψ ′ 0,1 = U ↑ Ψ0,1 ≡ (U ↑ ψ ⊗ U ↑ φ)0,1 = (ψ ′ ⊗ φ ′ )0,1<br />
ψ = ÉÑÓÒØÖÖÕÙ×ÐÓÒÙØÐ×∼ 1 ⎛ ⎞<br />
⎛ ⎞<br />
−a + c<br />
a<br />
√ ⎝ i(a + c) ⎠ÐÔÐψ= ⎝ b ⎠ ,<br />
2<br />
b<br />
c<br />
: ÓÒÓØÒØRθ ∼<br />
ψ ↦→ ∼<br />
ψ ′<br />
= R(−θ) ∼ ÓÑÑÒØÓÒ×ØÖÙØÓÒÐ×ÓÒØÓÒ×ÓÒΨ0,1ÒÙØÖ×ØÖÑ×ÓÑ<br />
uØdÓÒÖ×ÔØÖÐÐÖËÍ <br />
ψ,ÚÊÐÑØÖÖÓØØÓÒÒ×Ê3 ÑÒØÖÖÒÖÜØÑÒØu, d,<br />
ÓÒ×ÖÓÒ×ÙÒ×Ý×ØÑqqÑ×ÓÒ 2 ⊗2Ò×Ò×ÔÖÒØ××Ý×ØÑ×
×ÔÒ ÓÒ ØØ×ÒÙÐØ≡ 1 <br />
<br />
√ dd + uu = |0, 0〉<br />
2<br />
⎧ <br />
du = |1, 1〉<br />
ÉÚÖÖÕÙÐ×ØØ×ÙØÖÔÐØÓÒØÐÑÑ×ÝÑØÖÚ×Ú×ÐÒ<br />
⎪⎨ <br />
1√ dd − uu = |1, 0〉 ØØØÖÔÐØ≡ 2<br />
⎪⎩<br />
|−ud〉 = |1, −1〉<br />
u ↔ −d, u ↔ d ÄÓÒ×ØÖÙØÓÒ×ØØ××ØÒÓÒ×ÖÒØÙÒØØÜØÖÑ(| I3 |= I)<br />
I−|I, I3〉 = <br />
I(I + 1) − I3(I3 − 1) |I, I3 − 1〉<br />
I+|I, I3〉 = I(I + 1) − I3(I3 + 1) |I, I3 + 1〉 ÚÐ×ÒØÓÒ×ÙÓÙÐØ( u d ) ÓÒ<br />
I+|d〉 = [ 3 1 + 4 4 ]12<br />
|u〉 = |u〉<br />
I+|u〉 = −I+|−u〉 = −1 <br />
d = −d<br />
<br />
I+|u〉 = I+ d <br />
⎫<br />
⎪⎬<br />
I+ÒØÒÒØÓÑÔØ×ÖÐØÓÒ× ÔÖØÖ|−ud〉ÓÒÔÙØÓÒ×ØÖÙÖÐÒ×ÑÐÙØÖÔÐØÔÖÔÔÐØÓÒ<br />
⎪⎭<br />
= 0 ×ÖÐØÓÒ×ÒÐÓÙ×ÔÙÚÒØ×ÖÖÔÓÙÖI−<br />
I+|1, −1〉 = √ 2|1, 0〉<br />
I+|1, 0〉 = √ <br />
⎫<br />
ÁÑÔÓÙÖÐØØ×ÒÙÐØ<br />
⎪⎬<br />
2|1, 1〉<br />
⎪⎭<br />
I+|1, 1〉 = 0<br />
<br />
<br />
I+|0, 0〉 = 0<br />
ØÒÔÔÐÕÙÒØÐ×ÓÔÖØÙÖ×I±×ÓÙ×ÐÒÒÜÚÓÖ <br />
ØÐÒØÓÙÐØ( d −u )
I I3 Q J PÒØ<br />
du 0 − π +<br />
√1 (dd − uu)<br />
2<br />
0− π0 −ud 0− π− √1 (dd + uu) 0<br />
2 − ÌÊÔÖ×ÒØØÓÒ×ËÍ×Ó×ÔÒØ××ÓØÓÒ×ÔÓ××Ð×ÙÜÑ×ÓÒ× Ô×ÙÓ×ÐÖ×ÒÓÒØÖÒ×ÓÒÒÙ×<br />
η<br />
ØÕÙ×ØÐÙÖ×××ÓØÓÒ×ÔÓ××Ð×ÙÜÑ×ÓÒ×Ô×ÙÓ×ÐÖ×ÒÓÒØÖÒ× É×ÙØÖÐ×××ÓØÓÒ×ÔÖÓÔÓ××Ò×ÐØÐÙ ÓÒÒÙ× ÄØÐÙÓÒÒÐ×ÖÔÖ×ÒØØÓÒ×ËÍ×Ó×ÔÒÐÙÖ×ÒÓÑÖ×ÕÙÒ<br />
×ÝÑØÖÕÙ×ÙÔÓÒØÚÙÐ×ÚÙÖ ÇÒÔÙØÓÒ×ØÖÙÖÐÑÒØÐ×ÓÒØÓÒ×ÓÒÙÜÕÙÖ×qqÒ<br />
3⊕1ÇÒÓØÒØÙÒØØÒØ×ÝÑØÖÕÙØØØ×<br />
<br />
ÔÔÐÕÙÒØÐ×Ñ2⊗2 =<br />
⎧<br />
1<br />
⎨ uu<br />
<br />
1<br />
√ (ud − du) √ (ud + du)<br />
2 ⎩ 2<br />
ÄÜØÒ×ÓÒÐ×ÝÑØÖ×Ó×ÔÒËÍ ËÍ Ð×ÝÑØÖÙÒØÖ Ð×ÝÑØÖÙÒØÖËÍ<br />
dd<br />
×Ø<br />
ÁÐ×ÒÓÖÖ×ÔÓÒÒØÙÙÒØØÐÓÒÒÙQ = 4/3, 1/3, −2/3 !<br />
ÐÐÒØÖÓÙØÓÒÒ×ÐÑÓÐ×ÕÙÖ×ÙÒØÖÓ×ÑÕÙÖsÔÓÖØÙÖ
ØÖÒØSÒÖ<br />
<br />
u<br />
doublet ξ =<br />
ÍÒØØÔÙÖ×Ø×ÐÓÖ×ÖÔÖ×ÒØÔÖÐÙÒ×ÚØÙÖ××<br />
d<br />
⎛ ⎞<br />
u<br />
triplet ϕ = ⎝ d ⎠ ⇐⇒ ×Ó×ÔÒI+ØÖÒØS<br />
s<br />
ÄÓÖ×ÙÒÖÓØØÓÒÒ×Ð×ÔÓÑÒ×Ó×ÔÒØÖÒØ×ÝÑØÖÙÒØÖ ÐØØφ×ØÖÒ×ÓÖÑÓÑÑ<br />
⎛ ⎞ ⎛ ⎞ ⎛ ⎞<br />
1<br />
0<br />
0<br />
|u〉 = ⎝ 0 ⎠ , |d〉 = ⎝ 1 ⎠ , |s〉 = ⎝ 0 ⎠<br />
0<br />
0<br />
1<br />
∈ËÍ φ<br />
U<br />
<br />
U = exp −θˆn · λ<br />
ËÍ Ò×ËÍ ÓÒÙØÒÖØÙÖ×ÖÔÖ×ÒØ×ÔÖÑØÖ×ÐÐÅÒÒ ÓÒÚØØÖÓ×ÒÖØÙÖ×ÖÔÖ×ÒØ×ÔÖÐ×ÑØÖ×ÈÙÐÒ×<br />
)Ú <br />
≡ exp (−θˆn · F шn =<br />
2<br />
⎛ ⎞ ⎛ ⎞ ⎛ ⎞<br />
⇐⇒ ×Ó×ÔÒI<br />
′ ×ØÙÒÑØÖ×ÙÒØÖØÕÙÐÓÒÔÙØÖÖ<br />
<br />
= Uφ<br />
8<br />
λ1 =<br />
λ4 =<br />
⎝<br />
⎛<br />
⎝<br />
⎛<br />
⎝<br />
0 1 .<br />
1 0 .<br />
. . .<br />
0 . 1<br />
. . .<br />
1 . 0<br />
. . .<br />
. 0 −i<br />
. i 0<br />
⎠ , λ2 = ⎝<br />
⎞<br />
⎛<br />
⎠ , λ5 = ⎝<br />
⎞<br />
0 −i .<br />
i 0 .<br />
. . .<br />
0 . −i<br />
. . .<br />
i . 0<br />
⎠ , λ8 = 1 √ ⎝<br />
3<br />
λ7 =<br />
= ÕÙÐÓÒÓÑÔÐØÚλ0 2 ÒÓÑÖÕÙÒØÕÙØÒÓØËØÖÒ×ÐÖÐØÓÒ <br />
⎛<br />
√ ⎝<br />
3<br />
⎛<br />
1 0 0<br />
0 1 0<br />
0 0 −2<br />
1 0 .<br />
0 −1 .<br />
⎠ , λ3 = ⎝ ⎠<br />
. . .<br />
⎞ ⎛<br />
. .<br />
⎞<br />
.<br />
⎠ , λ6 = ⎝ . 0 1<br />
. 1 0<br />
⎞<br />
⎠<br />
⎞<br />
1 0 0<br />
0 1 0 ⎠<br />
0 0 1<br />
⎠ <br />
ÒÔ×ÓÒÓÒÖÚÐ×ØØ××ÐÖÔÖ×ÒØØÓÒÑÒ×ÓÒËÍ
Ä×ÔÓÒØ×ÖÔÖ×ÒØÒØ×ÞÖÓ×Ð×ÓÒØÔÓÙÖÓØ×ÓÙÐÒÖÐÔÖ×Ò× ×ÓÙ×ÖÓÙÔ×ËÍ Ò×ËÍ ÒÔÖØÙÐÖ×ÓÒÐ××ØÐÓÑÔÓ×ÒØ ØÖÒsÐØØφ λ1,<br />
ÔÖÑØØÒØÒÒÖÖÐ×ÓÙ××Ô×Ó×ÔÒÐ×ÝÑØÖÙÒØÖ <br />
≡ I3 ÓÒÐ×ÓÔÖØÙÖ×ÐÐI±<br />
ÔÐÙ×ÐÓÒÚÐ×ÓÔÖØÙÖ×ÐÐ ÑÑÓÒÔÖÐÍ×ÔÒØÎ×ÔÒÓÒØÐ×ÒØÓÒÒØÙØÚÚÒÖ<br />
=<br />
Ø <br />
<br />
ÇÒÔÙØ×ÑÒØÚÖÖÐÖÐØÓÒÖB ÔÓÙÖÙÒ×ÕÙÖ× ÇÒ<br />
Y ÖÒÖØÓÒØÓÒÓÔÖØÙÖÝÔÖÖÓY =<br />
ÔÔÐÕÙÓÒ×ÙÜØØ×uØsÔÖÜÑÔÐ<br />
ÖØÒ×ÙØÙÖ×Ò××ÒØÐÜÎ3Ò×Ð××ÒÓÔÔÓ×ÐÙÓÔØÕÙ×ÖÔÖ<br />
SØØÒÙ× ÕÙÓÒÒÒÐ×ÚÐÙÖ×B +<br />
<br />
ÙØ×ÙÖÐÒØÓÒα ÖÔÔÐÙ××Y =<br />
S = −1ÔÓÙÖÐÕÙÖsØÔÓÙÖÐ×ÕÙÖ×uØdØÐÙ<br />
F1 = λ1<br />
λ2, λ3ÖÔÖ×ÒØÒØÐÔÖØ×Ó×ÔÒÙÖÓÙÔ<br />
2 ≡ I1 , F2 = λ2<br />
2 ≡ I2 , F3 = λ3<br />
2<br />
F1 ± iF2<br />
U± = F6 ± iF7 , V± = F4 ∓ iF5<br />
U3 = − 1<br />
2F3 <br />
3<br />
+ 4F8 , V3 = − 1<br />
2F3 <br />
3<br />
− 4F8 Y = 2<br />
√ F8 =<br />
3 2 ⎛<br />
1<br />
1 1<br />
√ √ ⎝<br />
3 3 2<br />
= 2<br />
√ F8<br />
3<br />
1<br />
−2<br />
⎞<br />
⎠ = 1<br />
3<br />
⎛ ⎞<br />
1<br />
Y |u〉 = Y ⎝ 0 ⎠ =<br />
0<br />
1<br />
⎛<br />
0<br />
|u〉 , Y |s〉 = Y ⎝ 0<br />
3<br />
1<br />
Bar. + Str.Ò×ÐÖÐØÓÒ<br />
⎛<br />
⎝<br />
S<br />
<br />
B +<br />
⎞<br />
1<br />
1 ⎠<br />
−2<br />
⎞<br />
⎠ = − 2<br />
3 |s〉
ÄÓÔÖØÙÖÖQ×ØÒÔÖ <br />
Q = 1<br />
2 Y + I3 → F8<br />
√3 + F3 = 1<br />
ÓÑÑÓÒ×ÝØØÒ <br />
⎠<br />
<br />
<br />
<br />
1/2<br />
<br />
−1/2<br />
<br />
1/2<br />
<br />
1/2<br />
<br />
1/2<br />
−1/2<br />
ÌÄ×ÓÒ×ØÒØ××ØÖÙØÙÖËÍ √<br />
3/2<br />
√<br />
Ð×f k dijk×ÓÒØ×ÝÑØÖÕÙ×<br />
ij×ÓÒØÒØ×ÝÑØÖÕÙ×Ð×<br />
ÙÖÓÙÔÇÒ×ÖÔÖÒØØÓÒ×IÑÒ×ÓÒ× Ò×Ð×ËÍ ×ÔÒ ÕÙ<br />
φ<br />
<br />
=<br />
⎛<br />
⎝<br />
2<br />
3<br />
− 1<br />
3<br />
− 1<br />
3<br />
⎞<br />
⎛<br />
1<br />
⎝<br />
6<br />
1<br />
⎞<br />
⎠ +<br />
−2<br />
1<br />
⎛<br />
1<br />
⎝<br />
2<br />
i j k fk ij i j k dijk i j k dijk<br />
fk ij = −fk ji dijk = djik dijk = djik<br />
1/ √ 3 1/2<br />
1/2 −1/2<br />
1/2 −1/2<br />
1/ √ 3 −1/(2 √ 3)<br />
−1/2 −1/(2 √ 3)<br />
1/2 −1/(2 √ 3)<br />
1/ √ 3 −1/(2 √ 3)<br />
1/2 −1/ √ 3<br />
3/2<br />
′ ×ÓÒØ×ØÖÒØ×ÐÐÖËÍ I)φÔÖÑØÐØÙ×ÖÔÖ×ÒØØÓÒ×<br />
= (1 − iθˆn ·<br />
[Ii, Ij] = iǫijkIk<br />
−1<br />
0<br />
⎞<br />
⎠
Ò×Ð×ËÍ ×Øφ ′ F)ÕÙÔÖÑØØØØÙÓ××ÒØ<br />
= (1 − iθˆn ·<br />
ÐÐÖËÍ <br />
[Fi, Fj] = if k ij Fk<br />
{Fi, Fj} = 1<br />
3 δij <br />
+ dijkFk Ä×f k ËÍ ×ÓÒØÓÒÒ×Ò×ÐØÐÙ Ò×ËÍ ijØdijk×ÓÒØÔÔÐ×Ð×ÓÒ×ØÒØ××ØÖÙØÙÖÙÖÓÙÔÐÙÖ×ÚÐÙÖ×Ò ØÓÔÖØÙÖ×ØÒÔÖ ÐÓÔÖØÙÖ×ÑÖØÒÔÖÐÖÐØÓÒ Ò×<br />
F 2 8<br />
≡ FiFi =<br />
i=1<br />
1<br />
2 {I+, I−} + I 2 1<br />
3 +<br />
2 {U+, U−} + 1<br />
2 {V+, V−} + F 2 <br />
ØØÓÒ×ËÍ Ä×ÖÔÖ×ÒØØÓÒ×ËÍ<br />
8<br />
ÇÒÖ×ÓÒÒÔÖÒÐÓÚËÍ ÊÔÔÐÓÒ×ÕÙÒ×ËÍ ÐØØ×Ó×ÔÒ<br />
↔ÒÕÙÐÐÑÒØ∈ÁÁ<br />
ØÖÑÑ×ÔÓ×ÙÖ ÈÖØÒØÐÖÔÖ×ÒØØÓÒÓÒÑÒØÐ 0Ø ÑÒ×ÓÒ×Ø ÔÖÐÖÑÑÓÑÔÓ×ØÓÒ Ñ 1ÐÖÑÑÓÒÒ ÓÒÔÙØÓÖÑÖÐ×<br />
I3 I − 1, I ÖÔÖ×ÒØØÓÒ×I= ÈÓÙÖI =<br />
ÚÒØ×ÙØÖÙÓÑÔÓÖØÑÒØF 2ÖÓÒ×ÓÒÖØ×ÖÐ×ÖÔÖ×Ò<br />
↔ÒÕÙÐÖÔÖ×ÒØØÓÒÒÙ I3〉 Ù×Ý×ØÑ×ØÒÔÖÐ|I, I<br />
−1/2 +1/2<br />
2 (<br />
)<br />
−1/2 +1/2<br />
2 2<br />
d u<br />
,<br />
=<br />
=<br />
representation<br />
ÖÑÑ×ÔÓ×ËÍ<br />
du ud<br />
ÐÓÖ×ÐØÓÒÙÜ×Ó×ÔÒ×<br />
pions<br />
fondamentale<br />
3 1<br />
+<br />
η<br />
I3 −1 −1/2 0 1/2 1<br />
ØØ×ÖÔÖ×ÒØ×ÙÜÜØÖÑØ×ØÙÒØÖÙ×ÑÒØÓÖÖ×ÔÓÒÒØÄ×<br />
<br />
Dim
ØØ×ÖÙÔÓÒ×ÓÒØÐ×ÒØ×ÔÓÙÖ×ØØ×ÔÝ×ÕÙ×Ù×Ý×ØÑ<br />
ÕÙÖÒØÕÙÖÈÓÙÖI= 0ÓÒØØÖÔÖ×ÒØÐÓÖÒI3ÄÑ×ÓÒη<br />
×ØÐÒØÔÓÙÖØØØÔÝ×ÕÙ<br />
d<br />
U 3<br />
1 2<br />
1<br />
2<br />
1<br />
2<br />
I 3<br />
1<br />
2<br />
1<br />
2<br />
I 3<br />
Ä×ÖÔÖ×ÒØØÓÒ×ÓÒÑÒØÐ×ËÍ ×ÚÙÖ3Ø3Ò×Ð×Ý×ØÑ<br />
u d<br />
s<br />
V V 3<br />
3<br />
ÈÓÙÖÙÒÖÔÖ×ÒØØÓÒÓÒÒÚÓÖÔÐÙ×ÐÓÒÐ××ÖÒÔÖÐ× Ò×ËÍ ÓÒØÖÚÐÐÒ×ÙÒ×ÔÓÑØÖÕÙÑÒ×ÓÒÒÐ ÒÒ Ü×I3, U3, V3<br />
ÖÔÖI3ØÐØÖÒØSÓÙÙ××ÔÖI3ØÐÝÔÖÖY = B + S<br />
√<br />
3<br />
F3 ≡ I3, F8 ≡<br />
2 Y ÜÑÔÐ <br />
π + ×ÒÕÙÐÔÓÒÔÓ×Ø×ØÐÑÑÖÐÓØØ×ÕÙÖ×udsÒ×ØÓØØ<br />
ÇÒØÖÓÙÚÙ××ØØÜÔÖ××ÓÒÖØ×ÓÙ×ÐÓÖÑ<br />
+1ÆÓØÓÒ×ÕÙÓÒÒÔÙØÔ×Ð××Ö Ø<br />
≡ |octet qq, I = 1, I3 = +1, Y = 0〉 ÐÓÙÔÐÔÓ×ØÓÒY = 0 I3 = ÐÒØÓÒI =<br />
π + ×ÑÙÐØÒÑÒØ ÄÑÒ×ÓÒÐ×Ô×ØÐÙÒÓÑÖÒÖØÙÖ×ÕÙÔÙÚÒØØÖÓÒÐ××<br />
<br />
<br />
<br />
<br />
≡ <br />
8,<br />
Y = 0,<br />
3, I3 = +1<br />
<br />
<br />
SU(3) SU(2) ÇÒÙØÐ×ÐÒÓØØÓÒËÍ×ÚÙÖÔÓÙÖÖÔÔÐÖÕÙÓÒ××ØÙÒ×Ð×ÔI3 − Y<br />
1 2<br />
F8)Ú ÒÓÑÖ×(I, I3, Y )ÓÙ(I, F3,<br />
3<br />
1 2<br />
1 2<br />
u<br />
1ÖÐÝÙÒÒÖ×Ò<br />
U 3<br />
1 2<br />
1 2<br />
3<br />
s<br />
1 2<br />
1 2
Ä×ÖÔÖ×ÒØØÓÒ×ÓÒÑÒØÐ×ËÍ×ÚÙÖ3Ø3ÔÙÚÒØ×ÜÔÖÑÖÖ ÇÒÔÙØÚÖÖÖÔÕÙÑÒØÕÙ<br />
V3ÙÖ ×ÓØÒ×Ð ÔÕÙÑÒØ×ÓØÒ×Ð×Ý×ØÑÜ×I3, U3, ×Ý×ØÑÜ×I3, Y<br />
d ( , , 0)<br />
3<br />
= B + SÙÖ<br />
u ( , 0 , )<br />
1 1<br />
1 1<br />
2 2<br />
2 2<br />
Y = B + S<br />
I 3<br />
0<br />
1 1<br />
I 3<br />
Ä×ÖÔÖ×ÒØØÓÒ×ÓÒÑÒØÐ×ËÍ<br />
1<br />
1<br />
2 2<br />
2 2<br />
1<br />
3<br />
1 1<br />
ÒØÖÔÖÒØ×× ×ÚÙÖÒ×Ð×Ý×ØÑ<br />
1 1<br />
u ( 2,<br />
0,<br />
2)<br />
d ( 2 , , 2 0)<br />
2<br />
1 1<br />
s (0,<br />
,<br />
3<br />
2 2)<br />
U3)ÓÙÐØÐÖÐ×ÓÔÖØÙÖ×<br />
Ü×I3, Y = B + SÐ×ÚÐÙÖ×I3, U3,<br />
I3 = −(V3 +<br />
<br />
V3 + U3 = − 1<br />
2 F3<br />
<br />
3<br />
−<br />
4 F8<br />
<br />
+ − 1<br />
2 F3<br />
<br />
3<br />
+<br />
4 F8<br />
V±ÓÒØÐØÓÒ×ÙÚÒØ <br />
<br />
= −F3 ≡ −I3 Ä×ÓÔÖØÙÖ×I±, U±,<br />
I3 + 1ØY → Y<br />
I3 − 1 2ØY → Y + 1<br />
I3 − 1 <br />
×ØÙØÓÒÔÖÖÔÔÓÖØÐÐÚÓÕÙ×ÓÙ×ËÍ ÙÒØÖÔÐØÒØÔÖØÙÐ×ØÐÐ×ÓÖØÕÙÐ×ØÖÒ×ÓÖÑÓÑÑÐØÖÔÐØ× ÔÖØÙÐ×ËÐÓÒÓ×ØÖÖÐ×ØÖÔÐØ×ÓÖÖ×ÔÓÒÒØ×ÔÖ ÒÕÙÓÒÖÒÐ×ÖÔÖ×ÒØØÓÒ×3Ø3ÐÙØÖÐÚÖÐÖÒ ÁÐÒ×ØÔ×ÔÓ××ÐÖÖÒÖ<br />
2ØY → Y − 1<br />
Ø <br />
⎛ ⎞<br />
⎛ ⎞<br />
u<br />
u<br />
ψ ⎝ d ⎠<br />
<br />
ϕ = ⎝ d ⎠<br />
s<br />
s<br />
→ I+ØI3 → U+ØI3 V+ØI3 →<br />
2<br />
3<br />
1<br />
3<br />
3<br />
s (0,<br />
V3ÓÖÖ×ÔÓÒÒØ××ÓÒØÓÒÒ×<br />
1<br />
2<br />
,<br />
1<br />
2<br />
)
ÐÒ×ÑÐ×ÒÖØÙÖ×λiÙØÐ×ÖÔÓÙÖÐØÖÔÐØϕ×ÓØÒØÔÖ <br />
λi = Wλ ∗ W −1 ÓW =<br />
⎠<br />
U 3<br />
u u<br />
1 2<br />
1 2<br />
su<br />
u<br />
⎛<br />
⎝<br />
du<br />
0 1 0<br />
−1 0 0<br />
0 0 −1<br />
V<br />
ÒØÕÙÖ×ØÕÙÖ×<br />
3 ÈÖÓÖÔÕÙÓÒ×ØÖÙØÓÒØØ×qq<br />
Ð×ÓÑÒ×ÓÒ× ÔÓÙÖÓÖÑÖÐ×ØØ×Ñ×ÓÒ×ÓÒ×ÖÓÒ×ÔÖÜÚÓÖ dÕÙÓÒÒ ÖÔÕÙÑÒØÓÒÔÙØØÙÖÐÔÖÓÙØÖØ3 ⊗<br />
1/2, U3 =<br />
0, V3 = −1/2ÒØÓÙÖÓÒ×ÔÓÒØÙØÖÒÐ×ÒØÕÙÖ×u, s,<br />
I3 U3 V3<br />
uu = (−1 1 + 2 2 , 0 + 0 , 1 1 − ) = ( 0 , 0 , 0 )<br />
2 2<br />
su = ( 0 + 1<br />
2 , 1<br />
1 1<br />
+ 0 , −1 − ) = ( 2 2 2 2 , 1 , −1 ) 2<br />
1 1<br />
1<br />
du = ( + , −1 + 0 , 0 − ) = ( 1 , −1 , −1<br />
2 2 2 2 2 2 ) ÓÒØÐ××ÓÑÑØ×ØÐÒØÖ×ÓÒØÓÙÔ×ÔÖÐ×ÖÒØ×ÓÑÒ×ÓÒ×ØØ× ØÇÒÔÙØÙ××ÖÐÔÖÓÙØÖØ3⊗3×ØÖÓÑÒÖÙÜÕÙÖ×ÐÒ×ÑÐ<br />
ÄÓÔÖØÓÒØÒØÖÔØÒÔÖØÒØ×ÕÙÖ×dØsÓÒÓØÒØÙÒÜÓÒ<br />
ÓÒÒÖÙÙÒØØÔÝ×ÕÙÑÒØÓ×ÖÚÐ<br />
ÎÓÖÔÖÜË×ÓÖÓÛÞÐÑÒØÖÝÔÖØÐÔÝ××ÂÏÐÝÒËÓÒ×Ô<br />
ÓÑÒÖ<br />
3 ÙÖÐÔÓÒØÓ×ØÖÓÙÚÐÕÙÖu = ×ØÖÒI3<br />
u<br />
I 3<br />
s<br />
⎞<br />
d
ud<br />
U 3<br />
sd<br />
Ò×ÑÐ×ÖÔÖ×ÒØØÓÒ×ÒÓÒØÓØÒÙ×ÔÖÐÔÖÓÙØÖØ<br />
us ds<br />
V3 ÔÓ××Ð×ÚÓÖÙÖÄÔÓ×ØÓÒÒØÖÐÓÑÔÓÖØÙÒÒÖ×Ò<br />
3 ⊗ 3<br />
V±×ÒØØÖÒ×ØÖÙÒ×ÓÙ×ØØÐÙØÖÐÐÓÒÐÜÓÖÖ×ÔÓÒÒØÔÖ ØÒ×ÑÐÓÒ×Ò×ÔÖÐÔÖÓÙÖÙØÐ×Ò×Ð×ËÍ ssÈÓÙÖÖÖÒÖ ÇÒÔÖØ ØØ×ÔÙ×ÕÙÓÒØÖÓÙÚÒÔÓÒØÐ×ÓÑÒ×ÓÒ×uu,<br />
η 1〉Ò×ËÍ 0ÐÔÓÒÒÙØÖØÙÒÒØ<br />
dd,<br />
ÜÑÔÐI+|I, I3 = −I〉 ⇒ |I, I3 = −I + ×ÓÙ××ÔY = 0ÑÒÒÖÙÒØÖI =<br />
π<br />
η ≡ |0, 0〉 = 1 <br />
ØÒ×ËÍ 0〉Ò×ËÍ ÇÒÚÓÒÐÖÖ<br />
1ÓÒÒÙÒ×ÓØÖÔÐØÔÓÒØÙÒ×Ó×ÒÙÐØ<br />
8⊕1ÓÒÒÙÒÓØØØÙÒ×ÒÙÐØÄ<br />
√ (dd + uu)<br />
2 ÄÓÑÔÓ×ØÓÒ2 ⊗ 2 = 3 ⊕ ÐÓÑÔÓ×ØÓÒ3⊗3 =<br />
|0,<br />
<br />
<br />
η1 ≡ |×ÒÙÐØ〉 ≡ 1 , 1 ≡ 1 ÇÒÖÚÒÖÙÜÓÖÑ×η1Øη8Ò×ЧÖÐØÓÒ×Ø <br />
<br />
√ (uu + dd + ss)<br />
3<br />
su<br />
du<br />
uu,<br />
dd, ss<br />
ÐØÓÒI+Ò×Ð U±ÓÙ ÙÒØØÜØÖÑÒÓÒÑÙØÓÒÔÔÐÕÙÐÙÒ×ÓÔÖØÙÖ×I±, 0 ≡ |1, 0〉 = 1 <br />
√ (dd − uu)<br />
2<br />
dØsÓÑÑÐØØ ×ÒÙÐØÓØØÖÓÑÔÐØÑÒØ×ÝÑØÖÕÙÔÖÒu,<br />
I 3
↑ØËÍ ×Ó×ÔÒ<br />
×Ó×ÔÒ ÄØØÖÔÖ×ÒØÔÖØÔÖØÐÓØØËÍ ×ÚÙÖØÙØÖÔÐØ<br />
ÑÒ×ÓÒËÍ↑ 3 ÈÓÙÖØØØI±|1, 1〉<br />
ÐÓØØËÍ ÇÒÔÙØÓÒ×ØÖÙÖÙÒÓÑÒ×ÓÒÓÖØÓÓÒÐØ×ÒØÔÖØ ×ÚÙÖØÙ×ÒÙÐØ×Ó×ÔÒ<br />
π<br />
η8 = |8, Y = 0,1, I3 = 0〉 = 1<br />
8⊕1×ØÖÔÖ×ÒØÖÔÕÙÑÒØÒ×ÐÙÖ ÄÓÑÔÓ×ØÓÒ3⊗3 =<br />
= V±|1, 1〉 = U±|1, 1〉 = 0<br />
0 = |8, Y = 0,3, I3 = 0〉 = 1<br />
<br />
√ (dd − uu)<br />
<br />
2<br />
√ (dd + uu − 2ss)<br />
6<br />
3 3<br />
8<br />
1<br />
×ÖÓÙÔ× ÇÒÔÙØÑÓÒØÖÖÕÙØÓÙØ×Ð×ÖÔÖ×ÒØØÓÒ×ËÍ×ÚÙÖÓÖÖ×ÔÓÒÒØ ÁÐ×ØÓÑÑÓÒÚÙÐÒÖÐ×ØÓÒÖÓÙÖÖÙÐÒÐØÓÖ ÓÑÔÓ×ØÓÒ3 ⊗ 3 = 8 ⊕ 1<br />
ÜÓÒ×ØÔÐÙ×ÒÖÐÑÒØÐ×ÓÖÑ× )ÚÔÖÑØÖÓÒÚÜØÖÒÐ× ××ØÖÙØÙÖ×ÓÑØÖÕÙ×Ò×ÐÔÐÒ(I3, Y<br />
✑<br />
❚<br />
❚<br />
❚<br />
❚<br />
❚<br />
❚<br />
✑✑✑✑<br />
◗ Õ<br />
◗<br />
◗◗◗✔<br />
✔<br />
✔<br />
✔<br />
✔<br />
✔ Ô<br />
8,1><br />
8,3> 1,1>
ÔÓÙÖØØÒÖÙÒÜØÖÑÙÓÑÒÓÒÚÜÔÖØÖÙÒÙØÖÜØÖÑ ÕÙÒØÐÒÓÑÖÔ×ÕÙÐÙØÖ×ÐÓÒÐ×Ü×V3Î×ÔÒØI3Á×ÔÒ ÇÒÔÙØÓÒ Ð××ÖÙÒÖÔÖ×ÒØØÓÒÔÖÙÜÒÓÑÖ×ÔØÕÕÙÒ<br />
Á ÕI+φmax = 0<br />
·<br />
· ←− ·<br />
ÌËÍ<br />
· ←− · ←− ·<br />
· ←− · ←− · ←− ·<br />
φmax ր<br />
ÒÔÖØÒØÐØØÑÜÑÐÓÒÔÙØÓÒÖ2I×ÙØ×ÚÐÓÔÖØÙÖÐÐ Ò×ËÍ ×ÙÐÐÜI3×ØÓÒÖÒÒ×ÐØÐÙÓÒÓÒÒÐ× = ÕÒÓÒØÓÒÁÕÙÒÓÒÔÖØφmaxÓI3 Imax = I<br />
= ÚÐÙÖ×ÕÒÓÒØÓÒ×ÚÐÙÖ×ÁÕÙÒÓÒÔÖØφmaxÓI3 Imax = I ÚÒØ×ØÖÓÙÚÖÒ×ÐÚÐ2I + 1Ñ×ÙØÓÒÒ(I−) 2I+1 ÐÔÖÓÔÖØ Ò×ËÍ ÐÑÑÔÖÓÙÖÔÙØØÖÔÔÐÕÙ×ÙÕÙÐÙØÖ×ÓÒÒÖ<br />
U3ØV3ÙÔÐÒÚÓÖÙÖÄØØÑÜÑÐ×ØÐÙÕÙ <br />
φmax = 0 ×ÐÓÒÐ×Ü×I3, I+φmax = U+φmax = V+φmax = 0 ÖÙÐÓÒÙÒÔ×ØÓÒØÔ×ÙØ×(V−) p Õ φmaxÔÖØÖÐ×ÐÓÒÔÔÐÕÙ Ó×ÐÓÔÖØÙÖI−ÓÒ×ØÒÓÙÚÙÒ×ÐÚ(I−) q+1 (V−) p ÄØØφmax×ØÒÔÖ<br />
φmax = 0.<br />
I3 = 1<br />
(p + q) = Imax<br />
2 3<br />
Y = 1 Ò×ËÍ <br />
⎫<br />
⎬<br />
max ⎭<br />
(p − q) = Y 3 ÐÚÐÙÖÔÖÓÔÖI 2×Ø<br />
〈I 2 〉 = I(I + 1) = I 2 + I = (I max<br />
3 ) 2 + I max<br />
3 ÓI max <br />
3 ×ØÐÚÐÙÖÔÖÓÔÖI3ÐØØφmax<br />
ËÐÓÒÔÔÐÕÙφmaxÔ Ó×ÐÓÔÖØÙÖV−ÓÒ×ØÖÓÙÚÒ×ÐÚÇÒ
Ð××ØÓÒÒ×ËÍ<br />
ÑÒ×ÓÒ ÔÕ 〈F<br />
2 〉<br />
<br />
1<br />
3<br />
3<br />
8<br />
6<br />
10<br />
Ò×ËÍ ÓÒÔÙØÑÓÒØÖÖÕÙ<br />
〈F 2 〉 = (I max<br />
3 ) 2 + 2I max<br />
3 + 3<br />
ÌÎÐÙÖ×ÔÖÓÔÖ×F 2ÒÓÒØÓÒ(p, q)<br />
4 (Y max ) 2 ÒÙØÐ×ÒØ ÓÒÓØÒØ <br />
〈F 2 〉 = 1<br />
3 (p2 + pq + q 2 <br />
) + p + q ÄØÐÙÓÒÒÐ×ÚÐÙÖ×ÔÖÓÔÖ×F 2ÒÓÒØÓÒ×ÚÐÙÖ×(p, ÇÒÚÓØÕÙÐÐ×Ò×ÔÒØÔ×ÓÑÔÐØÑÒØÐÖÔÖ×ÒØØÓÒÓÑÑØØ q) Ð×ÔÓÙÖI 2ÔÖÜF 2 (3) = F 2 <br />
(3) = 4/3
Ò×ÕÙÓÒÐÖÔÔÐÒ×ÐÒØÖÓÙØÓÒ§ ÄÑÓÐ×ØØÕÙ×ÕÙÖ× ÐÜ×ØÙÒÓÒÒÓÖÖ× ÔÓÒÒÒØÖÐÐ××ØÓÒÒJ P×ÖÓÒ×Ó×ÖÚ×ØÐ×ÖÔÖ×ÒØØÓÒ× ÌÓÙØÓ×Ð×ÝÑØÖÙÒØÖÒ×ØÕÙÖÓ××ÖÑÒØÖ×ÔØÔÜÐ×Ñ××× ÖÓÒ×ÔÔÖØÒÒØÙÒÑÙÐØÔÐØËÍ ÖÖÙØÐ×ÙÖÓÙÔËÍ ×ÚÙÖÓÒÒÔÖ×ÒØÒØÒÓØÐ×<br />
ÖÕÙÐÑ××Ù×Ý×ØÑÖÓØÕÙÒÐØØÜØØÓÒÖÐÒ ÕÙÐ×ÔÖÓÔÖØ×ÙÖÓÒ×ÓÒØÓÒØÓÒ×ÙÓÒØÒÙÒÕÙÖ×ÚÐÒÐ ÖÒ×ÒØÖÐÐ×Ò×ÓÒ×ØÑÒÓÑÔÐØÖÐÑÓÐÒÑØØÒØ ÓÒÙÖØÓÒ×ÔØÐØÐØØ×ÔÒÖÐØ×ÖÒÖ×ÈÖÜÓÒÓÒ×<br />
×ÚÙÖÔÓÙÖÐ×ØØ×Ð×qqØqqqÓÙqqq<br />
ÐØØÜØØÓÒÓÖØÐÄ ÙÑÒØÒØ Ø<br />
q(q I I3 S B Q Y = 2(Q − I3)<br />
u(u) ±1/2 ±1/3 ±2/3 ±1/3<br />
ÕÙÖÒØÕÙÖØÖÒ ÌÆÓÑÖ×ÕÙÒØÕÙ×Ø××ÕÙÖ×ÒØÕÙÖ×ÐÖ×ØÙ<br />
d(d) ∓1/2 ±1/3 ∓1/3 ±1/3<br />
s(s) ∓1 ±1/3 ∓1/3 ∓2/3<br />
Ñ×ÓÒÕÙ×ØÖÝÓÒÕÙ×ÓÐÒØÖÔÖØØÓÒÒ×ÐÖ×ÖÔÖ×ÒØØÓÒ× ÈÓÙÖ×ÑÔÐÖÐÜÔÓ×ÒÓÙ×ÒÖ×ØÓÒ×ÙÜÕÙÖ×ÒØÕÙÖ××ØÖÓ×<br />
ËÍ ÔÐÙ×ÒÓÙ×ÒÓÙ×ÓÒÒØÖÓÒ××ÙÖÖØÒ××ØÙØÓÒ×ÔÖØÙÐÖ×ØØ×<br />
Ä××Ý×ØÑ×Ð×qqÑ×ÓÒ× ×ÚÙÖÒ×ØÔ×ØÖÚÐ ×ÚÙÖ×u(u), d(d)<br />
×ÚÙÖ×ÔÙØ××ØÙÖÒ×ÙÒ×ÒÙÐØÓÙÒ×ÙÒÓØØ×ÝÑØÖÙÒØÖ ÕÙ×ÜÔÖÑÔÖÐÓÑÔÓ×ØÓÒ Ä×ÝÑØÖËÍ×ÚÙÖÔÖØÕÙÐ×Ý×ØÑÐqqÓq×ØÐÙÒ×ØÖÓ×<br />
ÈÔØÖ ÄÜØÒ×ÓÒÙÒÕÙØÖÑ×ÚÙÖÕÙÖ×ØÔÖ×ÒØÙ§ ÉÙÖÑÓÐ ÎÓÖÙ××ÐØÐ <br />
<br />
3 ⊗ 3 = 1 ⊕ 8<br />
s(s)ÓÒÒÖÔÔÐÐÐ×ÒÓÑÖ×ÕÙÒØÕÙ×Ò×ÐØÐÙ
ØØÔÖØÓÒ×ØÚÖÔÖÐØÙ×Ñ×ÓÒ×ØÐÙÖ×ØØ×ÜØ×ÈÖ<br />
0ÓÙ ÄÑÓÐÒÔÖÚÓØÔ× ÈÓÙÖÐØØ×ÒÙÐØÙ×Ý×ØÑqqÓÒI = ÐÓØØÓÒI =<br />
ÉÒ×ÕÙÐÐ×ÚÓ××ÒØÖØÓÒÙØÐÖÖÖÚÒØÙÐ×Ñ×ÓÒ× ØÓÙÓÙÖ×ØÒÖÙØÙÙ×<br />
2××ÒØÖÒØÒ×ÐÚÓ× ØØ×Ó×ÔÒI = ØØÖÒØÝÔÖÖS(Y ) ÜÑÔÐÐÖÖÒØ×Ð×Ó×ÔÒI = 2××ÒØÖÒØÒ×Ð×ÚÓ×π<br />
ÒØÔÖÐÐÐ×↑↓ÓÙÔÖÐÐÐ×↑↑×ÔÒÓØØÖÓÑÒÚÐÑÓÑÒØ<br />
2Ð×Ý×ØÑqqÔÙØÓÒ×<br />
Lz×ÑÑÖ×ÐÔÖqqÔÓÙÖÓØÒÖÐÑÓÑÒØÒÙÐÖ<br />
ÄÕÙÖÐÒØÕÙÖ×ØÙÒÖÑÓÒ×ÔÒ1 ØÖÓÙÚÖÒ×ÐØØ×ÒÙÐØ×ÔÒS= 0, ×ÔÒS =<br />
ØÖÑ×ÐÙÒ×ÖÔÔÓÖØÒØÐÖÔÖ×ÒØØÓÒËÍ ×ÒÓÖÑØÓÒ××ÖØÖÓÙÚÒÓÒÒ×Ò×ÐÒÓØØÓÒ×ÔØÖÓ×ÓÔÕÙÙ×ÙÐÐ ÄÓÒØÓÒÓÒÙ×Ý×ØÑÔÙØØÖÒÓÑÑÐÔÖÓÙØÙÜ ×ÚÙÖÐÙØÖÙÜÓÒÙÖ<br />
ÓÖØÐÖÐØL,<br />
ØÓÒ××ÔÐØ×ÔÒÓÖÐÐ ÓÑÔÓ×ÒØ ËÍ×ÚÙÖ<br />
ÔÖÜÐÓÒØÓÒÓÒÙÒÑ×ÓÒπ +ÔÙØ×ÒÖÔÖ<br />
|π + ÍÒÓ×ÓÒÒ×I3ØYÐÖÐØÖÕÙ×ØÜÖÐØÓÒ <br />
ÖÐØÓÒ ÑÑ<br />
〉 = |8, Y = 0, I = 1, I3 = 1〉 |0, 0, 0, 0〉<br />
ØÖÒ×ØØÖÒ×ÓÒÒÙ×ÚÐ×ÒÓÑÖ×ÕÙÒØÕÙ×Ø×ØØÖÙ×ØÐ ØØ×Ñ×ÓÒÕÙ× Ò×ÐØÐÙ ÔÖ×ÖÖÔÔÐÒÓÙ×ÚÒÓÒ×ÙÔÖÓÐÑÒØÖÔÖØØÓÒÖØÒ× ÓÒÜØÖØÐØÐÈÙÒ×ÖÑ×ÓÒ×ÒÓÒ<br />
ÙÒÓ×ÓÒÒLÐÔÖØÙ×Ý×ØÑ×ØØÖÑÒÔÖP =<br />
ÓÑÒ×Ñ×××ÓÒÖÒÁÐ×ØÖÔÔÒØØÖÓÙÚÖÒ×ÐÓÐÓÒÒI =<br />
= ÒÖÐÑÒØÙÜØØ×ÒÙØÖ×I3 PCÓÒÒØÚ ×Ñ×××ÚÓ×Ò×ÆÓØÓÒ×ÕÙÙÒØÖÓ×ÑØØÒÙØÖ×ØÓÒØÒÙÑÔÐØÑÒØ Ò×ÐÓÐÓÒÒI = 1ÔÓÙÖÐÑÑJ PCÊÔÔÐÓÒ×ÕÙËÍ×ÚÙÖ×ÓÒ ×ÖÒÙÖ××ÓÒØÙØÐ××ÚÖØÔÖÑØØÖÐÚÖØÓÙØÑÙØÐÙÖ×ÙØ ÁÐ×ØÓÙÖÒØ×ÒÖÐØÖÒØØÐ×ÔÒÔÖÐÑÑÐØØÖSÐÓÒØÜØÒ×ÐÕÙÐ Ø<br />
<br />
ÔÖØÐÑÒØØÖÓ×ØØ×ÒÙØÖ×I3 =<br />
0ÓÙ 0ÔÓÙÖÐ×ØØ×<br />
0 S = Y =<br />
S = Y = −1, 3<br />
= ∓2, ∓3, ...<br />
2<br />
3<br />
K ± π ±ØÐÐÒØ×Ð×Ó×ÔÒI = ± π ±<br />
±2<br />
0ÓÙÒ×Ð×ØØ×ØÖÔÐØ× ÒØ×ÐØÖÒØS=<br />
JzÙ×Ý×ØÑ×ÓÒ×ÔÒÔÓÙÖÐÓ×ÖÚØÙÖÔÐÙÖÝÒØÖÄÒ×ÑÐ<br />
0ÓÙ×ÐÓÒÕÙÐ××ÔÒ××ÕÙÖ×ÓÒ×ØØÙÒØ××ÓÒØ<br />
Sz =<br />
1Sz = −1,<br />
J,<br />
<br />
2S+1LJ <br />
<br />
|Ñ×ÓÒ〉 =⇒ |qq〉 = |L, Lz, J, Jz〉<br />
(−1) L+1ÚÓÖ<br />
0ÐÑÑÖÒÙØÖÙØÖÔÐØ<br />
0<br />
Y = 0ÒØ×ÔÓÙÖÙÒJ S = Y =
2S+1LJ JPC ÖÓÒ<br />
du, uu, dd su, sd uu, dd, ss<br />
I = 1 I = 1 Ñ××ÅÎ℄<br />
I = 0 2<br />
1S0 0−+ π K η η ′ <br />
3S1 1−− ρ K∗ ω<br />
1P1 1 +− b1 K1B<br />
3P0 0 ++ a0 K∗ 0 <br />
f0(1370)<br />
3P1 1 ++ <br />
a1 K1A f1(1285) f1(1420)<br />
3P2 2 ++ a2 K∗ 2 f2(1270)<br />
1D2 2−+ π2 3D1 1−− ρ K∗ ×ØØ× ÌØØ×Ð×Ù×Ý×ØÑqqÑ×ÓÒ×ÒÓÒØÖÒ×ØØÖÒ×××Ò×<br />
ω(1650)<br />
√3 (uu+dd+<br />
<br />
<br />
φ<br />
h1(1170)<br />
f0(1710)<br />
f ′ 2 (1525) K2 <br />
<br />
ØÖÕÙÖØÙÒÜÑÒÔÐÙ×ÔÔÖÓÓÒØØÖÜÑÔÐÒÓÙ×ÓÒ×ÖÓÒ×Ð ×ØØ××ØÑÑØÐÐ×ÙÜÙØÖ×ÔÖÓÒØÖÒ×ØÔ×ÚÒØ ×Ó×ÔÒÓÒØÒÙÒÕÙÖ×1 √2 (uu+dd)Ð×ÒÙÐØËÍ×ÚÙÖ1 ss)ØÐÑÑÖÒÙØÖÐÓØØ1 √6 ×ØÙØÓÒ×Ñ×ÓÒ×Ô×ÙÓ×ÐÖ×J PC Å×ÓÒ×Ô×ÙÓ×ÐÖ× <br />
ÐÙÖÑ××ØÐÙÖÓÒØÒÙÒÕÙÖ× ÇÒÖÔÔÐÐÒ×ÐØÐÙÐÙÖÔÔÖØÒÒÙÜÖÔÖ×ÒØØÓÒ×ËÍ ÄÑ××Ù×Ý×ØÑqqÔÙØ×ÜÔÖÑÖ×ÓÙ×ÐÓÖÑ ×ÚÙÖ<br />
m = 〈qq|H0|qq〉 = M( 2S+1 ÑÓÐ 1×ØÔÖ×ÒØÒ×ÐØÐÈÔ Ó ÉÙÖ<br />
<br />
LJ) + mq + mq Ä×ØÙØÓÒ×Ñ×ÓÒ××ÔÒJ ><br />
J PC = 1 −−Ð×ÙÜÔÖÑÖ×ÐÒ×ÙØÐÙ<br />
−2ss)Ä××ÒØÓÒÙÔÖÑÖ<br />
(uu+dd<br />
= 0−+ØÐÐ×Ñ×ÓÒ×ÚØÙÖ×
H0×ØÐÓÔÖØÙÖÑ××<br />
M( 2S+1 ÓÖØÐÓÒÑØÕÙØØÓÒØÖÙØÓÒ×ØÒÔÒÒØÐ×ÚÙÖÙÕÙÖ ÈÓÙÖ×ÑÔÐÖÐÖØÙÖÒ×ÕÙ×ÙØÓÒÔÓ×<br />
LJ)×ØÐÓÒØÖÙØÓÒÔÒÒØ×ØØ××ÔÒØÑÓÑÒØ<br />
Ò×ØØÒÓØØÓÒÐ×Ñ××××ØØ×ÙØÐÙ×ÖÚÒØ<br />
mq = mqm0ÔÓÙÖÐ×ÕÙÖ×uØd msÔÓÙÖÐÕÙÖs<br />
M( 1 <br />
S0) M0<br />
mπ = M0 + 2m0<br />
mK = M0 + m0 + ms<br />
<br />
1√6 <br />
mη8 = (uu + dd − 2ss) H0<br />
1<br />
<br />
√ (uu + dd − 2ss)<br />
6<br />
= M0 + 1<br />
⎧<br />
⎪⎨<br />
6 ⎪⎩ 〈uu|H0|uu〉 +<br />
<br />
=2m0<br />
dd ⎫<br />
⎪⎬<br />
<br />
H0 dd + 〈uu|H0<br />
dd + ..... + 4〈ss|H0|ss〉<br />
⎪⎭<br />
=2m0 =0<br />
=8ms<br />
= M0 + 2<br />
3 m0 + 4<br />
3 ms ÒÓÑÒÒØØÓÒÓØÒØÐÖÐØÓÒÐÐÅÒÒÇÙÓ <br />
mη8 = 1<br />
3 (4mK <br />
− mπ)<br />
<br />
1√3 <br />
mη1 = (uu + dd + ss) H0<br />
1 <br />
√ (uu + dd + ss)<br />
3<br />
= M0 + 1<br />
3 (4m0 ÇÒÔÙØÐÑÒØÒØÖÖÙÒÖÐØÓÒÒØÖmη1ØÐ×Ñ×××Ñ×ÓÒ×Ó×Ö Ú× <br />
ÔÙØÒÒÖÖÐÑÐÒ×ØØ×ÔÔÖØÒÒØÙ×ÒÙÐØØÐÓØØØØ ÑÐÒÔÙØØÖÖØÐÙÒÑØÖÖÓØØÓÒÊ ÄÓÑÔÓ×ÒØ×ÒØÖØÓÒ×Ö×ÔÓÒ×ÐÐÚÓÐØÓÒ×ÝÑØÖËÍ ×ÚÙÖ<br />
+ 2ms)<br />
ÒØÖÑ×Ñ×××ÙÖÖÄÖÙÑÒØØÓÒ×ØÕÙÐ×Ó×ÓÒ××ÓÒØÖØ×ÔÖÐÕÙØÓÒ Ò×ÐØÐÈØÒ×ÐÐØØÖØÙÖÓÒØÖÓÙÚØØÖÐØÓÒØÐÐ×ÕÙ×ÙÚÒØÖØ×<br />
<br />
′ η η1 cosθps sin θps η1<br />
ÐÑÒØÖÝÈÖØÐ×Ð×ÐÐÈÙÐÓÑÔÔØ ÔÖØÙÐÖÔÓÙÖÐ×Ñ×ÓÒ×Ô×ÙÓ×ÐÖ×ÎÓÖ×ÙØÔÖÜÑÔÐÌÐÅÓÐ×Ó ÃÐÒÓÖÓÒÓÐÑ×××ØÔÖ×ÒØ×ÓÙ××ÓÖÑÕÙÖØÕÙ ÆÓÙ×ÒÜÔÐØÓÒ×Ô×ØØÖÐØÓÒÖÐÐÓÒÙØ×Ö×ÙÐØØ×ÔÙ×Ø××ÒØ×Ò<br />
= R =<br />
η η8 − sin θps cosθps η8
ËÍ×ÚÙÖ ÑÙÐØÔÐØ ÅÎ℄ ÅÎ℄ Î2℄ ÓÒØÒÙÒÕÙÖ× Ñ2 ØØ×Ñ××Ñ∆ÑÑÑπ<br />
π0 √2 1 (uu − dd)<br />
π + <br />
du<br />
π− ud<br />
{8} K + K<br />
su<br />
− K<br />
us<br />
0 sd<br />
K 0<br />
ds<br />
{8} η8 ≃ 612 1<br />
√6 (uu + dd − 2ss)<br />
ÑÐÒ<br />
{1}<br />
<br />
η1 ≃<br />
<br />
886<br />
<br />
√1 (uu + dd + ss)<br />
3<br />
m18 ≃ 155<br />
η sin −η1 θps + η8 cosθps<br />
{8}Ø{1}<br />
η ′ cos η1 θps + η8 sin θps<br />
θps ≃ −23¦ ÌËÖÑ×ÓÒ×Ô×ÙÓ×ÐÖ×J P = 0−ÆÓØÓÒ×ÕÙ×Ð×Ñ××× ≃<br />
−11¦ Óθps×ØÐÒÐÑÐÒÔÓÙÖÐ×Ñ×ÓÒ×Ô×ÙÓ×ÐÖ×<br />
×ÓÒØÖÑÔÐ×ÔÖÐÙÖÖÖÒ×Ð×ÖÐØÓÒ×ÓÒÓØÒØθps
ÈÖÖÔÔÓÖØÐ×η, η ′ÐÑØÖ×Ñ××××ØÓÒÐ<br />
η1ÔÖ×ÙØÐØÑÐÒÓÒ <br />
<br />
Ó ÈÖÓÒØÖÒ×Ð×η8, <br />
ÖÒØ×ÖÐØÓÒ×ÒØÖÐ×Ñ×××ØÐÒÐÑÐÒØÐÐ×ÕÙ ÔÖ×ÑÙÐØÔÐØÓÒ×ÑØÖ×ØÐ×ØÓÒØÖÑØÖÑÓÒÔÙØÓØÒÖ<br />
<br />
m1 + m8 = mη + mη ′ <br />
m 2 18 = m 2 81 = m1 · m8 − mη · mη ′ <br />
Ò×ÐÓÖÖ×ÙÚÒØm8m1 <br />
ÑÐÒθps×ÒÙØÐ×ÖÐØÓÒ×ÓÙÐ×Ö×ÙÐØØ××ÓÒØ Ä×Ñ×××ÒÓÒÒÙ××ÓÒØØÖÑÒ×Ð×Ñ×××Ñ×ÙÖ×ÒÔÖÓÒØ Øm18ÄÒÐ<br />
′ − m8<br />
ÓÒÒ×Ò×ÐØÐÙ<br />
Å×ÓÒ×ÚØÙÖ× ÆÓØÓÒ×ÕÙÐ×Òθps×ØÓÒØÓÒÙ×Òm18ÆÓÙ×ÚÓÒ×Ñ×ÕÙ<br />
×ØÓÒ×ÒÕÙÖ×Ù×ÒÙÐØØÐÓØØ×ÓÒØÐ×ÑÑ×Ñ×ÐÓÒÙÖØÓÒ ÔÖÑØÖÐÓÖÖ×ÔÓÒÒÒØÖÐ×ÙÜ×Ö×Ñ×ÓÒ×Ä×ÓÑÔÓ ×ÔÒÓÖÐÐ×ØÖÒØÙ××ÚÓÒ×ÒÓÙ×ÙØÐ××ÖØÖ×ÖÒØ×ÔÓÙÖ ÄØÐÙ×ØÐÔÒÒØÙØÐÙØÐÓÑÔÖ×ÓÒÐÒÐÒ<br />
×ÒÖ×ØØ× Ä×Ñ××××Ñ×ÓÒ×ÚØÙÖ××ÓÒØ×ÙÔÖÙÖ×ÙÜÑ××××Ñ×ÓÒ×Ô×Ù Ó×ÐÖ×ÕÙÒÕÙÕÙÒ×ÐÖÐØÓÒM( 3 ËÍ×ÚÙÖ ÈÓÙÖÐÐÖÐÖØÙÖÓÒÖØm1Øm8ÔÓÙÖÐ×Ñ×××Ù×ÒÙÐØØÐÓØØ ÎÓÖØÐÈÔØÖ ÉÙÖÅÓÐ H0<br />
H0<br />
η ′<br />
η<br />
η1<br />
η8<br />
m1 m18<br />
m81 m8<br />
<br />
=<br />
<br />
=<br />
<br />
mη ′ 0<br />
0 mη<br />
m1 m18<br />
<br />
= R † ·<br />
m81 m8<br />
tan 2 θps = m8 − mη<br />
mη<br />
η ′<br />
η<br />
η1<br />
<br />
mη ′ 0<br />
0 mη<br />
η8<br />
<br />
· R<br />
m18<br />
tanθps =<br />
mη ′ − m8 m18<br />
0Ò×ÙÚÒØÐÖÓÑÑÒØÓÒÐØÐÈ<br />
m18 <<br />
= m8 − mη<br />
S1) = M1 > M( 1 S0) =
ËÍ ÑÙÐØÔÐØ ×ÚÙÖ ÅÎ℄ ÅÎ℄ Î2℄ ÓÒØÒÙÒÕÙÖ<br />
<br />
Ñ2 ØØ×Ñ××Ñ∆ÑÑÑπ<br />
ρ0 1<br />
<br />
{8}<br />
ρ + du<br />
ρ − ud<br />
K ∗+<br />
K ∗−<br />
K ∗0<br />
K ∗0<br />
√2 (uu − dd)<br />
{8} ω8 ≃ 938 √6 1 (uu + dd − 2ss)<br />
ÑÐÒ<br />
{1}<br />
<br />
ω1<br />
m18<br />
φ<br />
ω<br />
≃ 884<br />
≃<br />
112<br />
√<br />
1<br />
(uu + dd + ss)<br />
3<br />
−ω1<br />
ω1<br />
ÌËÖÑ×ÓÒ×ÚØÙÖ×J P M0Ä×Ñ×××ÒÓÒÒÙ×ØÐÒÐÑÐÒθv×ÓÒØØÖÑÒ×Ò×ÙÚÒØÐ ÖÑÔÐ×ÔÖÐÙÖÖÖÒ×Ð×ÖÐØÓÒ×ÓÒÓØÒØθv ≃<br />
<br />
{8}Ø{1}<br />
su<br />
us<br />
sd<br />
ds<br />
sin θv + ω8 cosθv<br />
cosθv + ω8 sin θv<br />
θv ≃ 36¦<br />
= 1−ÆÓØÓÒ×ÕÙ×Ð×Ñ××××ÓÒØ 39¦
ÑÑ×ÑÕÙÙÔÖÚÒØØÒÓÒÚÒÒØÖÐ××Ù×ØØÙØÓÒ××ÙÚÒØ×<br />
K0 =⇒ K∗0(896) ; π0 =⇒ ρ0 Ò×<br />
η ′ ÎÓÖÐ×Ö×ÙÐØØ×Ò×ÐØÐÙ Ò× Ø<br />
ÁÐÔÔÖØÒ×Ð×ÔÖ×ÒØÕÙÓÒ×ÔÔÖÓÐ×ØÙØÓÒÙÑÐÒ<br />
=⇒ ω ; η =⇒ φ<br />
ÐÓθÐ= 35.3¦cosθÐ= 2<br />
3sin θÐ= 1<br />
<br />
<br />
|φ〉 ≈ −<br />
1<br />
<br />
√ 1<br />
(uu + dd + ss)<br />
3 3 +<br />
<br />
<br />
1 <br />
√ 2<br />
(uu + dd − 2ss) = −|ss〉<br />
6 3<br />
3Ø<br />
×Ý×ØÑss××ÒØÖÒÓÒ×ØÒÔÓÒ×Ò×ÐÔÖÓÔÓÖØÓÒ ÇÒÒØÖÓÙÚÙÒÓÒÖÑØÓÒÒ×ÐØÕÙÐÑ×ÓÒφ××ÒØÐÐÑÒØ<br />
ÄÑ××ÙφÔ××ÔÙÐ×ÙÐ×ÒØÖØÓÒÒKKÕÙÜÔÐÕÙ Êφ →<br />
ÓÒÒØÙÖÈÓÙÖÜÔÐÕÙÖÐÖÔÔÓÖØÑÖÒÑÒØÐ ÙÒÔÔÐØÓÒÐÖÐÇÁ ÔÖÙÒÖÑÑÓÒÒØÙÖ×ÙÖÐÔÖÓ××Ù×ÖÔÖÙÒÖÑÑ<br />
4.5MeVÄ×ÑÒ×Ñ×Ð×ÒØÖØÓÒÙφ×ÓÒØ ÕÙÔÖ×ÖØÐÔÖÓÑÒÒÙÔÖÓ××Ù×Ö<br />
Êφ →<br />
ρπÓÒÔÓ×ØÙÐÐÒØÖÚÒØÓÒÙÒÑÒ×ÑÓÒÙÖÖÒØÐÙØÝÔ<br />
ÐÐÖÙÖÓ×ÖÚΓφ ≃<br />
Ò×ÓÑÒ×ÓÒ×ÖÒØ×ÖÔÔÐÓÒ×ÐÑØ×ÚÙÖ× qÖÝÓÒ×ØÒØÖÝÓÒ×<br />
ÚÓφ →<br />
ÔÖÐÓÑÔÓ×ØÓÒ<br />
q)ÔÙØ×ÔÖ×ÒØÖ ÕÙ×ÜÔÖÑ Ä××Ý×ØÑ×Ð×q q qØq Ä×ÝÑØÖËÍ×ÚÙÖÔÖØÕÙÐ×Ý×ØÑqqq(q q<br />
3 ⊗ 3 ⊗ 3 = 3 ⊗ (6 ⊕ 3) = 10 ⊕ 8 ⊕ 8 ′ Ò×ÕÙ×ÙØÓÒÑØÕÙÐ×ØÖÓ×ÕÙÖ××ÓÒØÒ×ÐØØÜØØÓÒÐÔÐÙ× <br />
⊕ 1<br />
ËÇÙÓÛÂÁÞÙÈÝ×ÄØØ ËÙÔÔÐÈÖÓÌÓÖÈÝ×<br />
×ÔÓ××Ðn = Ä×ØØ×ÙÙÔÐØ{10}<br />
<br />
<br />
<br />
|ω〉 ≈ −<br />
1 √ (uu + dd + ss)<br />
3<br />
KK) ≃ 83%<br />
ρπ, ρππ) ≃ 16%<br />
2<br />
φ → KK → ρπÖÑÑÐÙÖ<br />
1, L = 0<br />
3 +<br />
<br />
<br />
1 √ (uu + dd − 2ss)<br />
6<br />
q<br />
<br />
1<br />
3<br />
= 1<br />
√ 2 (uu + dd)
a) b)<br />
K<br />
s<br />
u<br />
K<br />
s<br />
ρ<br />
u<br />
d<br />
π +<br />
+<br />
u<br />
d<br />
u<br />
ÖÑÑφ→KKÚÓÖ×ÔÖÐÖÐÇÁÖÑÑ<br />
ρπÚÓÖ×ÔÖÐÖÐÇÁ<br />
s s s s<br />
φ φ<br />
φ →<br />
ρ<br />
s<br />
K<br />
φ{<br />
s<br />
K<br />
d<br />
π +<br />
+<br />
u<br />
} d<br />
ÚÖØÙÐ<br />
ρπÓKK×ØÙÒØØÒØÖÑÖ<br />
} u<br />
Ä××ÔÒ××ÕÙÖ××ÓÒØÐÒ×Ð×Ý×ØÑ×ØÓÒÒ×ÐØØ×ÝÑØÖÕÙ<br />
ÖÑÑφ→KK →<br />
×ÔÒ|↑↑↑〉 = J = 3 ÓJZÔÙØÔÖÒÖÐ×ÚÐÙÖ×− , JZ 2 3<br />
ÙÒÙÖ×ÝÑØÖÕÙÔÖÖÔÔÓÖØ×ÙÜÜ×Ä×ØØ××ØÙ×ÙÜ×ÓÑÑØ× ÄÙÖ ÖÔÖ×ÒØÐ×ÖÝÓÒ×Ó×ÖÚ×ØÐÙÖÓÒØÒÙÒÕÙÖ×Ò×<br />
YÄ×ÒØÖÝÓÒ×ÓÖÖ×ÔÓÒÒØ××ÖÒØÖÔÖ×ÒØ×ÔÖ<br />
<br />
1 1 3 − , , 2 2 2 2 Ð×Ý×ØÑÜ×I3,
ÙØÖÒÐ×ÓÒØÑÒ×ØÑÒØ×ÝÑØÖÕÙ×ÒØÖÑÐ×ÚÙÖ×ÕÙÖ×ÔÖ ÓÒØÒÙØÐÒ×ÑÐ×ØØ×ÐÖÔÖ×ÒØØÓÒ{10}ÓÚÒØÐØÖÓÒÒ×<br />
ÐÙÖ ÐÙØÓÑÔÖÒÖÕÙ<br />
ddu =⇒×ÝÑ(ddu) = 1 ØÑÑ <br />
√ (ddu + dud + udd)<br />
3<br />
uds =⇒×ÝÑ(uds) = 1<br />
√ [(uds + usd) + (dus + dsu) + (sud + sdu)]<br />
6<br />
Y<br />
ddd ddu duu uuu<br />
1<br />
dds dus<br />
0<br />
uus<br />
I 3<br />
Σ* Σ*<br />
Σ*<br />
I 3 Σ (1385)<br />
0<br />
dss uss<br />
Ξ* Ξ*<br />
<br />
1<br />
Ξ (1530)<br />
sss Ω<br />
2<br />
Ω (1672)<br />
ÙÔÐØJ P = 3+ØÖÝÓÒ×ÓÖÖ×ÔÓÒÒØ×<br />
ÔÖØÖ×ØØ××ØÙ×ÙÜ×ÓÑÑØ×ÙØÖÒÐÚÓÖÙÖ Ä×ÓÔÖØÙÖ×I±ÔÙÚÒØØÖÙØÐ××ÔÓÙÖÓÒ×ØÖÙÖÐ×ØØ×ÒØÖÑÖ× ÔÖÜÑÔÐ<br />
2<br />
I−(uuu) ≈ I−(u)uu + uI−(u)u + uuI−(u)<br />
= 1 <br />
ÑÒØ×ÝÑØÖÕÙ×ÓÒØÔÖÓ×ÖØ×ÔÖÐÔÖÒÔÜÐÙ×ÓÒÈÙÐÒ×Ð×<br />
√3×ØÒØÖÓÙØÔÓÙÖ××ÙÖÖÐÒÓÖÑÐ×ØÓÒÐÓÒØÓÒÓÒ<br />
ÔÖ×ÒØÐÒØ×ÝÑØÖÐÓÐ×ØÖ×ØÙÖÔÖÐÓÒØÓÒÙÒÓÑÔÓ×ÒØ ÊÐÚÓÒ×ÕÙ×ØØ×ÖÑÓÒ×ÓÒØÐÓÒØÓÒÓÒ×ØÓÑÔÐØ<br />
√ (duu + udu + uud)<br />
ËÍ<br />
3<br />
Ä×ÕÙÖ××ÓÒØÔÓÖØÙÖ×ÙÒÖÓÙÐÙÖ×Ù×ÔØÐÔÖÒÖØÖÓ× ÓÙÐÙÖÒØ×ÝÑØÖÕÙ<br />
ÄØÙÖ1<br />
ÚÐÙÖ×ÖÒØ× ÓÖÑÐÐÑÒØÓÒÔÙØ×ÒÖ×ØÖÓ×ÓÙÐÙÖ×ÔÖÐÙÖ×<br />
Y<br />
0 ∆ ∆ ∆ ∆<br />
+ ++<br />
0 +<br />
ÄÓÒÔØÐÖÓÙÐÙÖ×ÕÙÖ××ÖÚÐÓÔÔÙ§<br />
<br />
∆<br />
(1232)
ÓÒÙÖØÓÒ×Ù×Ý×ØÑqqqÔÖØ×ÔÖËÍ ×ÚÙÖ
ÖÝÓÒ×ÓÒÔÖ×ÖØÕÙ |ÓÑÔÓ×ÒØËÍ ÒØÐ×ÔÖÜÑÔÐÐÐ××ØÖÓ×ÓÙÐÙÖ×ÖÖÒÐÙÈÓÙÖÐ×ØØ×qqq<br />
×ØØ××ÓÒØÓÒ××ÒÙÐØ×ËÍ ÓÙÐÙÖ ×ØÖÒÓÐÓÖ× ÓÙÐÙÖ〉 = |ÒØ×ÝÑÖ〉<br />
Ò×ÙØÕÙÖÐ××Ù×ØØÙØÓÒ×ÕÙØ×Ò× ÈÓÙÖÐ×ØØ×ÒØÖÝÓÒ×ÓÒÒØÐ×Ö×ÓÙÐÙÖÓÑÔÐÑÒØÖ× <br />
(ÖÖ) (ÖÖ)]<br />
×ØØ×ØÕÙÖÑÖÓÒÖÔÒÒØÐÔÖ×ÖÔØÓÒÕÙÐ×ØØØ× ÒÓÐÓÖ×ÕÙÓÒÙØÖÖÐÙÖÓÑÔÓ×ÒØËÍ ÆÓØÓÒ×ÕÙÐ××Ý×ØÑ×Ð×qqÑ×ÓÒ×ÔÔÒØÐÓÒØÖÒØÐ ÓÙÐÙÖ×ÓÙ×ÐÓÖÑ <br />
ØÖÕÙÙÖ Ò×ÐØØ×ÒÙÐØÐÓÑÔÓ×ÒØËÍ ×ÚÙÖ×ØÓÑÔÐØÑÒØÒØ×ÝÑ ÄØØÙ×ÒÙÐØ{1}<br />
<br />
É ÑÓÒØÖÖÕÙÐØØ×ÒÙÐØËÍ 0×ØÒ<br />
ÒÓÒÒÖÐ×ÒÓÑÖ×ÕÙÒØÕÙ× ÖÖÙÒÒØÔÓÙÖ×ÒÙÐØËÍ ×ÚÙÖÒ×ÐØÐÈØ ×ÚÙÖÙ×Ý×ØÑqqqÚL =<br />
ÄÓÑÔÓ×ÒØËÍ ×ÚÙÖÙÒ×ÝÑØÖÑÜØÖÐØÚÑÒØÙÜÔÖ×<br />
Ä×ÓÔÖØÙÖ×I±ÔÖÑØØÒØØÖÒ×ØÖÙÒØØÐÙØÖÐÐÓÒÐÜ<br />
q2q3Øq1q3ÇÒÔÙØÓÒ×ØÖÙÖÒ×ÚÓÖÙÖ ØÖÓ×ÓØØ× ÕÙÖ×q1q2 = ÚÖÖÒÔÖÒÒØÐ×ØÖÑ×ÓÖÖ×ÔÓÒÒØ××ÓØØ×ÕÙψ13 I3ÐÓØØÈÖÜÑÔÐÔÖØÒØÐØØϕ= 1 <br />
√ (ud − du)dÒ×ÐÓØØψ12<br />
2<br />
=<br />
= 1 b,ÙÑÑØØÖÕÙÓÒ×Ö×ÐØÖÕÙ××Ò×ÓÔÔÓ××ÁÐÒÝ<br />
√ [(ÖÖ) + +<br />
6<br />
r g,<br />
|ÓÑÔÓ×ÒØËÍ ÓÙÐÙÖqq〉 =<br />
= 1 √ 3 (rr + gg + bb)<br />
|ÓÑÔÓ×ÒØËÍ ×ÚÙÖqqq〉 =⇒ÒØ×ÝÑ(uds) =<br />
= 1 ØÖØÔÖÐ×ØØ×ØÕÙÖÑÖÓÑÔØØÒÙ×ÔÖ×ÖÔØÓÒ××ÙÖËÍ<br />
√ [u(sd − ds) + d(us − su) + s(du − ud)]<br />
6<br />
couleur<br />
Ä×ØØ××ÓØØ×{8}Ø{8 ′ ψ23Øψ13ÓÒØÙÜ×ÙÐÑÒØ×ÓÒØÒÔÒÒØ×ØÚÑÒØÓÒÔÙØ<br />
}<br />
ψ12,<br />
ψ12 + ψ23
ÓÒ <br />
ÓÒØÓÒÓÒØÓØÐÙ×Ý×ØÑ×ØÖÓ×ÕÙÖ×ÓØØÖÒØ×ÝÑØÖÕÙ ÄÓÒ×ØÖÙØÓÒÐÓÑÔÓ×ÒØ×ÔÒÓÖÐÐÒ×ØÔ×ØÖÚÐÊÔÔÐÓÒ×ÕÙÐ<br />
I+[(ud − du)d] = I+[ud − du]d + (ud − du)I+[d]<br />
= (I+[u]d + uI+[d] − I+[d]u + dI+[u])d + (ud − du)u<br />
= (0 + uu − uu + 0)d + (ud − du)u<br />
<br />
= (ud − du)u<br />
×ÝÑØÖÕÙ |ÓÑÔËÍ<br />
|ÓÑÔËÍ ×ÝÑØÖÕÙ ×ÝÑÑÜØ<br />
|q1q2q3〉 = |ÓÑÔ×ÔÐÄ〉 · |ÓÑÔ×ÔÒ〉 ·<br />
×ÚÙÖ〉 ·<br />
<br />
×ÑÙÐØÒÙ×ÔÒØÐ×ÚÙÖÄ×ØÖÙØÙÖÐÓÑÔÓ×ÒØ×ÔÒÓÖÐÐ×Ø ÒØ×ÝÑØÖÕÙ<br />
antisym.<br />
?<br />
<br />
ÓÒØÖÑÒÔÖÐ×ÝÑØÖÑÜØÐÓÑÔÓ×ÒØËÍ ØØÓÒØÖÒØÑÔÐÕÙÕÙÐÓÒØÓÒÓÒ×ÓØ×ÝÑØÖÕÙÔÖÐÒ ×ÚÙÖÁÐÐÙ×ØÖÓÒ×<br />
·<br />
ÓÙÐÙÖ〉 <br />
ØØÓÖÖÐØÓÒÒÖ×ÓÒÒÒØÒÓÙÚÙ×ÙÖÐØØϕ= 1<br />
duÙÒÓÑÔÓ×ÒØÒØ×ÝÑØÖÕÙÒ×ÔÒ××ÕÙÖ× du)dÐÓØØ<br />
<br />
√ (ud −<br />
2 ψ12Ò×ÙÒÔÖÑÖØÑÔ×ÓÒ××ÓÐÔÖØÒØ×ÝÑØÖÕÙÒ×ÚÙÖ×ud −<br />
Ð××ÓØÓÒ××Ù×ÒÓÒÒØÙÒ×ØÖÑ×ÖÓØ ÒÒÒØÐÔÓ×ØÓÒ×ÙÜÕÙÖ×ÊÑÖÕÙÓÒ×ÔÐÙ×ÕÙÐÐÓÒÒ Ä××ÓØÓÒÒ×ÖÐ××ØÑÒ×ØÑÒØ×ÝÑØÖÕÙÕÙÓÒÔÙØÚÖÖ ÙÒÓÒØÖÙØÓÒÒÙÐÐÙ×ÔÒÙ×Ý×ØÑÒ×ÙÒ×ÓÒØÑÔ×ÓÒÓÑÔÐØ Ð<br />
(ud − du) ⊗ (↑↓ − ↓↑) = u ↑ d ↓ −u ↓ d ↑ −d ↑ u ↓ +d ↓ u ↑<br />
ÐÔÓ×ØÓÒÙØÖÓ×ÑÕÙÖÔÖÖÔÔÓÖØÙÜÙÜÙØÖ×ÄÜÔÖ××ÓÒÒÐ ×ÝÑØÖ×ÐØØÓØÒÙÒØÙÒØÒ×ÙÒ×ØÖÑ×ÙÒÔÖÑÙØØÓÒ ÓÑÔÓÖØ ØÖÑ×ÕÙÔÙÚÒØØÖÔÖØÐÐÑÒØÖÖÓÙÔ×ÓÑÑ×ÙØ<br />
1 [−2(d ↑ d ↑ u ↓) − 2(d ↑ u ↓ d ↑) − 2(u ↓ d ↑ d ↑)<br />
↓Ò×ÙÒØÖÓ×ÑØÑÔ×ÓÒ ØÖÓ×ÑÕÙÖÑÙÒ×ÓÒ×ÔÒd ↑ÓÙd<br />
<br />
√18××ÙÖÐÒÓÖÑÐ×ØÓÒÐØØÄ×ÔÒÙ×Ý×ØÑ×ØØÖÑÒ ÄØÙÖ1 ÔÖÐ×ÔÒÙØÖÓ×ÑÕÙÖJ =<br />
√ 18<br />
+u ↑ d ↑ d ↓ +u ↑ d ↓ d ↑ +d ↓ u ↑ d ↑<br />
+d ↑ u ↑ d ↓ +d ↑ d ↓ u ↑ +d ↓ d ↑ u ↑]<br />
1/2, JZ = ±1/2
ψ12ÙÖ ÔÖ××ÓÒ×ÒØÕÙ×ÑÑÖÑÑÖÔÓÙÖ×ÙÜÓØØ×ÚÖÖØØÖ ÄÑÑÑÖÔÙØØÖÑÔÖÙÒØÔÓÙÖÐ×ÙØÖ×ÑÑÖ×ÐÓØØ Ò×ÕÙÔÓÙÖÐ×ÑÑÖ×ÐÓØØψ23ÇÒÓØÒØ×Ü ÜÖÒ×Ð×ÓØØ×{8}Ø{8 ′ ÔÖ××ÓÒ×ØÐÐ×ÔÓÙÖÐÒ×ÑÐ×ÑÑÖ×ÐÓØØÖÝÓÒÕÙ×ØÖÓÙÚÒØ Ò×ÐÐØØÖØÙÖ×ÔÐ×ÆÓØÓÒ×ÕÙ×ÜÔÖ××ÓÒ××ØÖÓÙÚÒØ×ÓÙÚÒØ ÓÑÔÓ×ÒØ××ÔÒÒØÖÓÙØ×ØÐ×ÝÑØÖ×ØÓÒÕÙØØÙÄ×Ü<br />
}Ò× ×ÓÒÓÒÒØÙÒÓ×Ð×<br />
ÓÒØÖÓÙÚ ÖØ××ÓÙ×ÙÒÓÖÑÖØÓÒÐ×ÔÐÙ×ÓÑÑÓÔÓÙÖÐÜÔÐÓØØÓÒÈÖÜÑÔÐ ÖØÓÑÑ×ÙØ<br />
×ØØ×ØÕÙÖÑÖÑÒÔÖÖÕÙÐ×ÖÝÓÒ×ÒØÖÝÓÒ×ÒÓÒ ÒÓÒÐÙ×ÓÒÐÔÔÐØÓÒ×ÖÐ××ÝÑØÖÙÒØÖØ×ÖÐ×Ð Ó<br />
ØÖÒ×ØØÖÒ×Ò×ÐØØÓÒÑÒØÐ××ØÙÒØÒ×ÐÙÔÐØ×ÔÒ<br />
<br />
1/2ÙÖ<br />
×ÙÖÐ×ÖÐ×ÐØÓÖ×ÖÓÙÔ×ÄÓÑÒ×ÓÒ××ÝÑØÖ×ËÍ ËÍ ×ÚÙÖ⊗ËÍ ×ÔÒ<br />
ØËÍ ÄÔÖÓÙÖÖØÙ§ ×ÔÒÒÒÖÐ×ÝÑØÖËÍ×ÚÙÖ×ÔÒÄ×ØØ××ÐÖÔÖ×Ò ÔÙØØÖØÒÙØÓÖÑÐ×Ò×ÔÔÙÝÒØ ×ÚÙÖ<br />
ØÒ×ÐÓØØ×ÔÒJ =<br />
ØØÓÒ×ÓÒØ<br />
J = 3/2ÙÖ<br />
8.10.11 =⇒ 1<br />
<br />
↓ ↑ ↑ ↑ ↑ ↓ ↑ ↓ ↑<br />
√ −2 + +<br />
6 u d d u d d u d d<br />
<br />
↓ ↑ ↑<br />
≡ √3 [u ↓ d ↑ d ↑ + d ↑ d ↑ u ↓ + d ↑ u ↓ d ↑]<br />
u d d ×ÝÑØÖ1<br />
u ↑ =<br />
⎛ ⎞ ⎛ ⎞ ⎛ ⎞ ⎛ ⎞<br />
1<br />
0 0 0<br />
⎜ 0 ⎟ ⎜<br />
⎟ ⎜ 1 ⎟ ⎜<br />
⎟ ⎜ 0 ⎟ ⎜<br />
⎟ ⎜ 0 ⎟<br />
⎜ 0 ⎟ ⎜<br />
⎟<br />
⎜ 0 ⎟ , u ↓ = ⎜ 0 ⎟ ⎜<br />
⎟<br />
⎜<br />
⎟ ⎜ 0 ⎟ , d ↑ = ⎜ 1 ⎟ ⎜<br />
⎟<br />
⎜<br />
⎟ ⎜ 0 ⎟ , d ↓ = ⎜ 0 ⎟<br />
⎜<br />
⎟ ⎜ 1 ⎟ ,<br />
⎟<br />
⎝ 0 ⎠ ⎝ 0 ⎠ ⎝ 0 ⎠ ⎝ 0 ⎠<br />
0<br />
0 0 0<br />
⎛ ⎞ ⎛ ⎞<br />
0<br />
0<br />
⎜ 0 ⎟ ⎜<br />
⎟ ⎜ 0 ⎟<br />
ÈÝ××ÑÖÍÒÚÖ×ØÝÈÖ××ÌÐ ÎÓÖÔÖÜÏÅ×ÓÒØÊÈÓÐÐÖËÝÑÑØÖÝÈÖÒÔÐ×ÒÐÑÒØÖÝÈÖØÐ<br />
⎜<br />
s ↑ = ⎜ 0 ⎟ ⎜<br />
⎟<br />
⎜ 0 ⎟ , s ↓ = ⎜ 0 ⎟<br />
⎜<br />
⎟ ⎜ 0 ⎟<br />
⎝ 1 ⎠ ⎝ 0 ⎠<br />
<br />
<br />
0<br />
1
Y<br />
ddu duu<br />
1<br />
1<br />
dds<br />
uus<br />
Σ Σ Σ<br />
I<br />
3/ 2<br />
1/2<br />
1/2<br />
3/<br />
3<br />
I Σ (1195)<br />
0<br />
3<br />
2<br />
Λ (1116)<br />
Λ<br />
dss uss<br />
Ξ Ξ<br />
1<br />
1<br />
Ξ (1318)<br />
0<br />
dus<br />
+<br />
<br />
0<br />
1<br />
1<br />
0<br />
0<br />
ÇØØJ P = 1+ØÖÝÓÒ×ÓÖÖ×ÔÓÒÒØ×<br />
×ÝÑØÖÄØÐÙ ØØ××ØÖÙÖÒØÖÖÒØ×ÑÙÐØÔÐØ×ÕÙ××ØÒÙÒØÔÖÐÙÖ×ÔÖÓÔÖØ× Ø×ËÍ Ò×Ð×ÙÒ×Ý×ØÑØÖÓ×ÕÙÖ×ÒØÕÙÖ×ÓÒÔÙØÓÒ×ØØÙÖ ×ÚÙÖØËÍ×ÔÒ×ÓÑÒÒØÇÒÓØÒØÐÓÑÔÓ×ØÓÒ×ÙÚÒØ ÓÑÔÖÒÖÓÑÑÒØÐ××ÝÑØÖ××ÔÖ<br />
2<br />
6 ⊗ 6 ⊗ 6 = 56S ⊕ 70M ⊕ 70 ′ ×ÝÑØÖÑÜØ MØÐ×ÓÑÔÓ×ÓÑÑ×ÙØ<br />
SØ<br />
M + 20A ÓS×ÒÓÑÔÐØÑÒØ×ÝÑØÖÕÙAÓÑÔÐØÑÒØÒØ×ÝÑØÖÕÙØM ÄÔÐØÓÑÔÐØÑÒØ×ÝÑØÖÕÙ×ØÓÖÑÐ×ÔÖÓÙØ×S ⊗<br />
M ⊗<br />
<br />
56 = 10 J = 3<br />
ÓÑÔÓ×ÒØÓÑÑ×ÙØ ÇÒÐÙ××ÓÐÙÔÐØØÐÓØØ×ÖÝÓÒ×ÓÒÒÙ×Ò×ÐØØÜØØÓÒ Ä ÔÐØÓÑÔÐØÑÒØÒØ×ÝÑØÖÕÙØÐÔÐØ×ÝÑØÖÑÜØ×<br />
<br />
1<br />
⊕ 8<br />
2 2<br />
L = 0<br />
<br />
3 1<br />
××ÝÑØÖ××ÓÙ×ÒØ×ÓÔÔÓ××Ò×Ð×ÔÖ×ÕÙÖ×ÓÒ×ØØÙÒØ××<br />
20 = 1 ⊕ 8<br />
2 2<br />
ÖÒØ×ÑÙÐØÔÐØ×ØÖÓÙÚÒØ×ØØÓÒ×Ò×Ð×Ö×ÓÒÒ×ÖÝÓÒÕÙ× Ä′ÔÐØÐÑÑ×ØÖÙØÙÖÕÙÐÔÐØØÒ×Ò×ØÒÙÕÙÔÖ<br />
<br />
1 3 1 1<br />
70 = 10 ⊕ 8 ⊕ 8 ⊕ 1<br />
2 2 2 2<br />
<br />
...ÇÒ××ØÙÐÓÖ×Ò×ÐÖ ÓÖÖ×ÔÓÒÒØÙÜØØ×ÜØØÓÒL = 1, 2,<br />
n<br />
Y<br />
p<br />
N<br />
(939)
ÓÒØÓÒÓÒ O(3)ÓO(3)ÓÒÖÒÐÔÖØ×ÔÐÐ<br />
ËÝÑØÖËÍ×ÚÙÖ<br />
×ÖÔÖ×ÒØØÓÒ×ËÍ⊗<br />
ËÝÑØÖËÍ×ÔÒ S<br />
Ì ×ÝÑØÖ×ËÍ ËÝÑØÖ×ËÍ×ÚÙÖ×ÔÒÙ×Ý×ØÑ ×ÚÙÖØËÍ ×ÔÒÆÓØÓÒ×ÕÙÐÒÜ×ØÔ×ØØÓÑÔÐØÑÒØ ÕÙÖ×ÒÓÒØÓÒ×<br />
<br />
ÒØ×ÝÑØÖÕÙ×ÔÒÔÓÙÖÐ×Ý×ØÑÕÙÖ×Ò×ÐØØÓÒÑÒØÐL<br />
ÔÔÐØÓÒ×ÒÙÑÖÕÙ×ÙÑÓÐ×ØØÕÙ×ÕÙÖ×<br />
=<br />
ÖÓÑÓÑÒØ×ÑÒ×Ð×Ñ×ÓÒ×Ô×ÙÓ×ÐÖ×(J P ØÐ×Ñ×ÓÒ×ÚØÙÖ×(J P ÇÒØÙÒÖØÓÙÖÙ§ØÔÐÙ××ÔÕÙÑÒØÙØÖÑM( 2S+1 ÐÜÔÖ××ÓÒÐÑ××Ù×Ý×ØÑqqÖÐØÓÒÒ×Ð××Ñ×ÓÒ× LJ)Ò×<br />
ÙÜÖ×ÓÙÐÙÖ ÐÓÒÙÖØÓÒ××ÔÒ×ÙÕÙÖØÐÒØÕÙÖÒ×ÉÐ×ØÖÔÖ×ÒØ ÓÑÑÐÖ×ÙÐØØÐÒØÖØÓÒÖÓÑÓÑÒØÕÙÒØÖÐ×ÑÓÑÒØ×××Ó× ØÖÑ×ÖÙØÐØ<br />
<br />
Ô×ÙÓ×ÐÖ×ØÚØÙÖ×(L =<br />
ÍÒÖÐØÓÒÒÐÓÙÖØÐÒØÖØÓÒÐØÖÓÑÒØÕÙÒØÖÐÑÓÑÒØÑÒØÕÙ<br />
Ó: mq · mq<br />
×ØÖÙØÙÖÒÎÓÖÙÒÐÚÖÔÝ×ÕÙØÓÑÕÙÙÔØÖ×ÙÖÐ×ØÖÙØÙÖÝÔÖÒÙ ×ÔØÖÓÔØÕÙ αe×ØÐÓÒ×ØÒØ<br />
<br />
ÐÐØÖÓÒØÐÙÙÔÖÓØÓÒÒ×ÐØÓÑÝÖÓÒÒ××α =<br />
0<br />
M A<br />
S(J = 3)<br />
S M A<br />
2<br />
M(J = 1<br />
) M S, M, A M<br />
2<br />
= 1 − )<br />
0, S = J = 0Ø<br />
∆EÖÓÑÓ= 8πα<br />
| ψ(0) |<br />
3<br />
2 < sq · sq ><br />
α = αqq = 4<br />
3αs =ÓÒ×ØÒØÓÙÔÐÓÖØ<br />
, αs<br />
ψ(rq, = rq)ÓÒØÓÒÓÒÙ×Ý×ØÑqqÔÖ×ÐÓÖÒ(rq rq = 0)<br />
= 0 − )
mq(mq)Øsq(sq)Ñ××Ø×ÔÒÐÒØÕÙÖÕÙÖ<br />
Ñ×ÓÒ JP Ñ××Ñ×ÙÖÑ×××ØÚ×∆EÖÓÑÓ ×ÓÒ×ØØÙÒØ×<br />
, I [Î]<br />
π 0− , 1 ≃ 2m0 − 3 Kqq<br />
4 m2 0<br />
K(K) 0− ≃ , 1/2 m0 + ms −3 Kqq<br />
4 m0ms<br />
ρ 1− ≃ 1 Kqq<br />
, 1 2m0<br />
4 m2 0<br />
K∗ (K∗ ) 1− ≃<br />
×ÐÓÒÐÑÓÐ×ØØÕÙ×ÕÙÖ× Ì ÓÒØÖÙØÓÒ×ÐÑ××Ñ×ÓÒ×Ô×ÙÓ×ÐÖ×ØÚØÙÖ×<br />
1 Kqq<br />
, 1/2 m0 +<br />
ÄÓÙÔÐ×ÔÒÑÓÝÒÚÙØ<br />
ms 4 m0ms<br />
< sq · sq > = 1<br />
<br />
J(J + 1) −<br />
2<br />
1<br />
<br />
1<br />
+ 1 −<br />
2 2 1<br />
<br />
1<br />
+ 1<br />
2 2<br />
⎧<br />
⎨ −<br />
=<br />
⎩<br />
3<br />
ÐÒØÖØÓÒÖÓÑÓÑÒØÕÙÒ×Ð××ÓØÖÔÐØ××Ñ×ÓÒ×πØρØÐ× ÄØÐÙ ÓÒÒÐ×ÓÒØÖÙØÓÒ××Ñ×××ØÚ×ÓÒ×ØØÙØÚ×Ø<br />
4ÔÓÙÖJ = 0<br />
1 ÔÓÙÖJ = 1<br />
4<br />
ÒÓÑÔÓ×ÒØÐ×Ñ×××Ò×ÐÓØØÚØÙÖØÐÓØØÔ×ÙÓ×ÐÖ<br />
mρ(770) − mπ(140) =⇒ Kqq<br />
m2 <br />
≃ 0.630GeV<br />
0<br />
mK∗(890) − mK(490) =⇒ Kqq Ó <br />
<br />
<br />
≃ 0.400GeV<br />
m0 · ms<br />
ms<br />
≃ 1.6<br />
m0<br />
<br />
×ÓÓÙÐØ××Ñ×ÓÒ×KØK ∗ÇÒÖÔÖ×ÐÒÓØØÓÒÙ§ÔÐÙ×ÔÓÙÖ ÐÐÖÐÖØÙÖÓÒÔÓ×32π 9 αs | ψ(0) | 2 = Kqq
ÒÓÑÔÖÒØÐ×Ñ×××ÐÒØÖÙÖ×ÓØØ×<br />
mK(490) − mπ(140) = ms − m0 − 3<br />
<br />
Kqq<br />
−<br />
4 m0ms<br />
Kqq<br />
m2 <br />
0<br />
≃ 0.350 GeV<br />
m ∗ K (890) − mρ(770) = ms − m0 + 1<br />
<br />
Kqq<br />
−<br />
4 m0ms<br />
Kqq<br />
m2 ÓÒÓÑÒÒØ Ø <br />
<br />
0<br />
≃ 0.120 GeV<br />
ms − m0 ≃ 0.180 GeV<br />
Ñ×ÓÒ×ÐÐ×ÒÓÚÒØÔ×ØÖÓÒÓÒÙ×ÚÐ×Ñ×××ÓÙÖÒØ×ÒØÖÒØ Ò×ÐÓÒ×ØÖÙØÓÒÙÄÖÒÒÉ ÆÓØÓÒ×ÕÙÐ×ØÑ×××ØÚ× ÓÒ×ØØÙØÚ××ÕÙÖ×Ò×Ð×<br />
m0 ≃ 0.300 GeV (ÕÙÖ×u, d)<br />
<br />
ms ≃ 0.480 GeV (ÕÙÖs)<br />
ÖÓÑÓÑÒØ×ÑÒ×Ð×ÖÝÓÒ×ÙÙÔÐØ(J P = 3 )Ø +<br />
2 ÐÓØØ(J P = 1<br />
ØÒÖÐ×ÓÑÑ q)ÓÒØÐÙØØÖÑÒÖÐ×ÓÒØÖÙØÓÒ×ÐÒØÖØÓÒÖÓÑÓÑÒØÕÙ<br />
q2×ØÖÔÖ×ÒØÔÖÙÒÜÔÖ××ÓÒÙØÝÔ<br />
+<br />
) 2 Ò×××Ý×ØÑ×ØÖÓ×ÕÙÖ×ÒØÕÙÖ×ÓÒÔÙØÓÖÑÖØÖÓ×ÔÖ×q<br />
q (qÄÓÒØÖÙØÓÒÙÒÔÖq1 = Ò×ÐÕÙÐÐα=αqq 2<br />
3αs, ÄØÐÙ ÑÓÒØÖÐ×ÓÒØÖÙØÓÒ××Ñ×××ØÚ×ØÐÒØÖ<br />
=ÓÒ×ØÒØÓÙÔÐÓÖØ<br />
αs ØÓÒÖÓÑÓÑÒØÕÙØÓØÐÒ×ÐÙÔÐØJ P = 3<br />
= 2<br />
1+<br />
2 ÇÒÔÓ×16π 9 αs | ψ(0) | 2 Ò×Ð×ÙÙÔÐØÐÚÐÙØÓÒ×ÓÙÔÐ××ÔÒ×Ø×ÑÔÐÖ<br />
= Kqq<br />
ØØÒØÓÒÔÖØÙÐÖÖÐÖ×ÙÐØØÖÙÒÑÙÐØÔÐØ×Ó×ÔÒÐÙØÖ ÔÓÙÖÓØÒÖÐ∆EÖÓÑÓÓÖÖ×ÔÓÒÒØ ÒÕÙÓÒÖÒÐÓØØÐÚÐÙØÓÒ×ÓÙÔÐ××ÔÒÖÕÙÖØÙÒ<br />
4ØÐ×ÙØÔÓÒÖÖÔÖÐÒÚÖ××Ñ×××ÓÒÖÒ×<br />
2ÒØÖαqqØαqq×ÖÙ×ØÙ§<br />
1<br />
sqi ·sqj >=<br />
<br />
ÄØÙÖ1<br />
<br />
+ØÐÓØØJ P ÔÙ×ÕÙÐ×ØÖÓ××ÔÒ××ÓÒØÐÒ×ÈÓÙÖÙÒ×ÔÖ×ÕÙÖ×ÓÒ
ÖÝÓÒ ×ÓÒ×ØØÙÒØ× ∆EÖÓÑÓ<br />
J<br />
<br />
[Î]<br />
Ω Ξ 3 τ<br />
N<br />
3<br />
3<br />
1<br />
Λ<br />
+<br />
×ÐÓÒÐÑÓÐ×ØØÕÙ×ÕÙÖ× Ì ÓÒØÖÙØÓÒ×ÐÑ×××ÖÝÓÒ×ÙÙÔÐØØÐÓØØ<br />
τ , 1 ≃<br />
Ξ<br />
ÕÙ×ÖÔÖÙØ×ÙÖÐ∆EÖÓÑÓÓÖÖ×ÔÓÒÒØØØÖÜÑÔÐÒÓÙ×ÜÑÒÓÒ× ÓÖÑ×ÙÜÕÙÖ×ÐÖ×<br />
×ÖÑÒØÒ×ÐØØ×ÝÑØÖÕÙ×Ó×ÔÒIÔÖ=1ØÒ×ÐØØ×ÝÑØÖÕÙ<br />
1)ÐÔÖÓÖÑ×ÙÜÕÙÖ×ÐÖ××ØÒ×<br />
4ÙØÖÔÖØ<br />
ÒØÐÐ××ÝÔÖÓÒ×Σ ØΛ ×Ó×ÔÒI1ÓÙ2 = Ò×Ð×ÓØÖÔÐØΣ(IΣ =<br />
ÊÔÔÐÓÒ×ÕÙÐÒØ×ÝÑØÖÐÓÒØÓÒÓÒ×Ø××ÙÖÔÖ×ÔÖØËÍ s<br />
<br />
ÓÙÐÙÖ ÕÙÐ××ÔÓÙÖÐÒ×ÑÐ×ÙÜÔÖ×ÑÜØ×1, sØ2,<br />
∆<br />
P , IÑ××Ñ×ÙÖÑ×××ØÚ×<br />
3+<br />
3 , ≃ 3m0<br />
2 2<br />
+<br />
, 1 ≃ 2<br />
2m0 + ms<br />
m0 + 2ms<br />
3ms<br />
3m0<br />
+ 1 , 2 2 ≃ ≃ +<br />
, 0 2<br />
+ 1 , 2 2<br />
1+<br />
, 0 2<br />
1<br />
2<br />
1+<br />
1 , 2<br />
≃ ≃ 2m0 + ms<br />
m0<br />
×ÔÒÓ <<br />
<br />
i= 1<br />
< s1 · ss > + < s2 · ss >= −3 4<br />
s1 · s2 >= 1<br />
= 0<br />
m0ms<br />
<br />
JΣ(JΣ + 1) − 3<br />
2<br />
1<br />
<br />
1<br />
+ 1 = −<br />
2 2 3<br />
4<br />
− 1<br />
4<br />
= −1<br />
Kqq<br />
m 2 0<br />
+ 1<br />
4<br />
+ 1<br />
4<br />
Kqq<br />
m 2 s<br />
Kqq<br />
m 2 0<br />
Kqq<br />
m 2 0<br />
+ 1<br />
4<br />
+ 1<br />
4<br />
Kqq<br />
m 2 0<br />
Kqq<br />
m 2 s<br />
Kqq<br />
m2 0<br />
Kqq<br />
m2 s
ÔÖ×ÔÓÒÖØÓÒÔÖÐÒÚÖ××Ñ×××ÓÒÓØÒØÚÓÖØÐÙ 0)ÐÔÖ×ÕÙÖ×ÐÖ××ØÐØØÒØ×ÝÑØÖÕÙ<br />
ÉØÖÑÒÖÐ×ÓÙÔÐ××ÔÒÒ×Ð×ÔÖ×ÕÙÖ×ÙÓÙÐØN<br />
0ØÒ×ÐØØÒØ×ÝÑØÖÕÙ×ÔÒÇÒÓØÒØÒ××<br />
∆EÖÓÑÓ= −<br />
ÕÙÖ×ÑÑ×ÚÙÖ ØÒÖÓÑÔØÙØÕÙ××Ý×ØÑ×ÓÑÔÖÒÒÒØÙÜ<br />
= Ò×Ð×Ó×ÒÙÐØΛ(IΛ ×Ó×ÔÒIÔÖ=<br />
ÄÙ×ØÑÒØÐÒ×ÑÐ×Ñ×××Ñ×ÙÖ×ØÐÙ ÓÒÒ <br />
ØÙÓÙÐØΞ<br />
<br />
ÓØØ×Ñ×ÓÒÕÙ× ×Ö×ÙÐØØ××ÓÒØÒÓÖÕÙÐØØ ÅÓÑÒØ×ÐØÖÓÑÒØÕÙ×ÔÓÐÖ×ÐÝÔÖÓÒ %ÚÙÜÓØÒÙ×Ò×Ð×<br />
ÖÝÓÒ×ØÐ×ÓÑÑ×ÚØÙÖ×ÑÓÑÒØ×ÑÒØÕÙ××ØÖÓ×ÕÙÖ×ÓÒ×Ø ØÙÒØ× 0ÐÚØÙÖÑÓÑÒØÑÒØÕÙÙ<br />
+ )Ø×ÖÝÓÒ×ÐÓØØ(J<br />
Óσqi×ØÐÓÔÖØÙÖ×ÔÒ<br />
ÒÐ×ÒÑÓÑÒØÓÖØÐL =<br />
2mqicÔÓÙÖÐ×ÔÔÐØÓÒ×ÔÖ×ÒØ×ÓÒ×ÙÔÔÓ×Ð×ÕÙÖ×ÔÓÒØÙÐ×<br />
µ<br />
Qqi×ØÐÓÔÖØÙÖÖÚ×ÓÒ×Ò ØÓÒÒÐÐØÙÒÚÒØÙÐÐÒÓÑÐ<br />
ÖÐÐÐÙÑÓÑÒØÒÙÐÖÓÑÑÐÑÜÑÙÑ×ÓÑÔÓ×ÒØ×ÐÓÒÐÜ ÈÖÓÒÚÒØÓÒÓÒÜÔÖÑÐÚÐÙÖÙÑÓÑÒØÑÒØÕÙÓÑÑÒÒ<br />
2mqic×ØÐÑÒØÓÒÒØÖÒ×ÕÙ<br />
<br />
Kqq<br />
m0ms<br />
+ 1<br />
4<br />
Kqq<br />
m2 0<br />
< s1 · s2 >= −3 4 < s1 · ss > + < s2 · ss >= −3 4<br />
Ω(JP = 3<br />
2<br />
µqi ≃ Qqi<br />
e<br />
e<br />
m0 ≃ 0.360 GeV ; ms ≃ 0.540 GeV <br />
Kqq<br />
m2 0<br />
ms/m ≃ 1.5 <br />
≃ 0.200 GeV ; Kqq<br />
m0ms<br />
P<br />
3 + 4 = 0Ø∆EÖÓÑÓ= −<br />
≃ 0.135 GeV <br />
= 1+<br />
) 2<br />
B = <br />
µ qi , µ qi = µqi · σqi<br />
i=1<br />
3 Kqq<br />
4 m2 0
+1ÓÒÓØÒØ<br />
dØ ÕÙÒØØÓÒÓ×ØÒÓÒÓÑÑÐÑÓÙеÈÓÙÖÐ×ÕÙÖ×u<br />
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= sÚσZ<br />
ØÖÓÙÚÔÖÜÑÔÐ ÔÖ×ÓÒÚÓÖØÐÈÚÐ×ÚÐÙÖ××Ñ×××ÓÒ×ØØÙØÚ× 2mpcÖÒÙÖÓÒÒÙÚÙÒÖÒ ÓÒ<br />
= ÒÙÒØÑÒØÓÒÒÙÐÖµN<br />
ÄÑÓÑÒØÑÒØÕÙÙÒÖÝÓÒBÔÙØØÖÜÔÖÑ×ÓÙ×ÐÓÖÑ<br />
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ÄÔÔÐØÓÒÙÑÓÐÙÜÖÝÓÒ×ÐÓØØJ P ÐÐÖÐÖØÙÖÓÒÙØÐ×ÐÓÖÑÖØÓÒÐ× ÓÖØÒÓÙ×ÐÐÐÙ×ØÖÓÒ×ÔÖÐÜÑÔÐÙÑÓÑÒØÑÒØÕÙÙÒÙØÖÓÒÒ<br />
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ÙÒ×ØÖÓ×ØÖÑ× ÓÒØÖÙÔÖ ÒÖÔÔÐÒØÕÙ〈...<br />
(µu)Z = + 3 e<br />
2 2muc , (µd)Z = − 1 e<br />
3 2mdc , (µs)Z = − 1<br />
3<br />
(µu)Z = 2<br />
3<br />
e<br />
µN ≃ 1.7µN ; (µd)Z = − 1<br />
3<br />
e<br />
2msc , <br />
mp<br />
mp<br />
µN ≃ −0.9µN<br />
mu<br />
md<br />
(µs)Z = − 1 mp<br />
µN ≃ −0.6µN<br />
3 ms<br />
+1〉×ÝÑÓÐ×ÐÓÒØÓÒÓÒÒÓÖÑÐ×ËÍ×ÚÙÖ×ÔÒ <br />
3<br />
(µB)Z = 〈B ↑| (µqi)Z|B ↑〉<br />
i=1<br />
Ó|B ↑〉 = |B, σZ =<br />
= 3<br />
2<br />
(µΩ)Z = 3(µs)Z = − mp<br />
µN ≃ −1.8µN<br />
ms<br />
= 1<br />
ËÍ×ÚÙÖ×ÔÒ<br />
2<br />
|n ↑〉 = 1<br />
<br />
↓ ↑ ↑ ↑ ↑ ↓ ↑ ↓ ↑<br />
√ −2 + +<br />
6 u d d u d d u d d<br />
<br />
↓ ↑ ↑<br />
=<br />
u d d<br />
1 √ (u ↓ d ↑ d ↑ + d ↑ d ↑ u ↓ + d ↑ u ↓ d ↑)<br />
3<br />
<br />
2 1√3<br />
[−(µu)Z + (µd)Z + (µd)Z]
ÒÒ×ÖÒØÖ×ÙÐØØÒ×ÐÔÖÑÖØÖÑ ÐÑÑÑÒÖÐ×ÙÜÙØÖ×ØÖÑ×ÓÒÓØÒØ ØÒÚÐÓÔÔÒØ<br />
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ÙØÐÙ×ÓÒØÓÒØÓÒ××ÚÐÙÖ××Ñ×××ÓÒ×ØØÙØÚ××ÕÙÖ×ÓÒ ×ØÐ××ÓÒØÓÒ×Ò×Ò×ÐØÐÙ ÓÖÖ×ÔÓÒÒØ×ÚÓÖØÐÈÄ×ÔÖØÓÒ×ÒÙÑÖÕÙ×ØÖÓ×ÑÓÐÓÒÒ Ä×ÔÖØÓÒ×ÙÑÓÐ×ØØÕÙ×ÕÙÖ×ÔÓÙÖÐÒ×ÑÐ×ÖÝÓÒ×<br />
ÓÔØÐ×ÑÓÝÒÒ× Ø Ò×ÕÙÐ×ÚÐÙÖ×Ñ×ÙÖ×<br />
ÖÔÔÓÖØ×Ñ×ÙÖ× ×Ñ×××Ò×ÐÖÙÑÓÐ×ÕÙÖ××ÓÒØÒÓÒÓÖÚÐ× ÆÓØÓÒ×ÕÙÐ×ÖÔÔÓÖØ×(µp)Z/(µn)ZØ(µΛ)Z/(µΩ)ZÕÙ×ÓÒØÒÔÒÒØ× ×ÓØmu =<br />
×ØÖÚÑÓÝÒÒÖÐØÚÑÒØÐÓÒÙ≫ 10−20 ØÓÒÐÓÙÐØÖÓÑÒØÕÙ <br />
s)Ö××ÒØÖÒØÔÖÒØÖ<br />
<br />
1<br />
(µn)Z = 3 √6<br />
+<br />
2<br />
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<br />
1<br />
√3<br />
2<br />
[−(µu)Z + 2(µd)Z]<br />
2 1<br />
√3 [(µu)Z + (µd)Z − (µd)Z]<br />
2 1<br />
+ √3 [(µu)Z − (µd)Z + (µd)Z]}<br />
= − 1<br />
3 (µu)Z + 4<br />
3 (µd)Z<br />
ddÚ×ÔÓ×ÔÔÖÓÔÖ×ÓÒÒ×ÔÖÐØÐÓÒØ× ddØ · |↑↑〉<br />
|↑〉 u |↑↓ + ↓↑〉<br />
<br />
1<br />
, +1<br />
2 2 n =<br />
<br />
2<br />
<br />
1<br />
, −1<br />
2 2 3 u |1, +1〉 dd −<br />
<br />
1<br />
<br />
1<br />
, +1<br />
2 2 3 u |1, 0〉 dd<br />
0.51Î<br />
3 [(µu)Z + 0]×ÓØÙØÓØÐ−<br />
(µp)Z = − 1<br />
3 (µd)Z + 4<br />
3 (µu)Z<br />
1<br />
3 (µu)Z + 4<br />
3 [−(µu)Z +2(µd)Z +2(µd)Z]<br />
= 1<br />
2<br />
3 (µd)Z<br />
md ≃ 0.33Î, ms ≃
ÖÝÓÒ ÓÒØÖÙØÓÒ××ÕÙÖ× ÚÐÙÖ×ÔÖØ× ÚÐÙÖ×Ñ×ÙÖ× ÑÓÑÒØÑÒØÕÙÔÓÐÖÒÙÒصN<br />
<br />
<br />
2.793....<br />
−1.913....<br />
<br />
2.458<br />
<br />
−1.160<br />
−1.250<br />
Ì<br />
−0.6507<br />
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3Ò×ÐÚÐÙÖ<br />
ÕÙÖtØÐÈÝ×ÊÚÄØØ <br />
<br />
p<br />
n<br />
4<br />
3 (µu)Z − 1<br />
3 (µd)Z<br />
4<br />
3 (µd)Z − 1<br />
3 (µu)Z<br />
Λ (µs)Z <br />
+ 4 Σ 3 (µu)Z − 1<br />
3 (µs)Z<br />
0 2<br />
Σ 3 (µu)Z + 2<br />
3 (µd)Z − 1<br />
3 (µs)Z <br />
− 4 Σ 3 (µd)Z − 1<br />
3 (µs)Z<br />
0 4 Ξ 3 (µs)Z − 1<br />
3 (µu)Z<br />
Ξ<br />
− 4<br />
3 (µs)Z − 1<br />
Ω − 3(µs)Z <br />
3 (µd)Z<br />
−0.613<br />
−2.02<br />
± (2.9 10 −8 )<br />
± (5 10 −7 )<br />
± 0.004<br />
± 0.010<br />
± 0.025<br />
± 0.014<br />
± 0.0025<br />
± 0.05<br />
= 1<br />
2
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×ÒØÖØÓÒ×Ð××Ñ×ÓÒ×D 0ØD 0 s×ÓÒØÙÒÖÒÒØÖØÔÖÓÑ ÔÖ×ÓÒÐÐÙK 0 ÑÐÒØØ×ÚÓÖ§ Ä×ÔÖÓÔÖØ×ÙÖÑÓÒÙÑ×Ý×ØÑcc×ÖÓÒØÜÑÒ×Ù§ ÇÒÓÒ×ÖÐ×ØÙØÓÒ×ÖÓÒ×ÓÖÑ×ÙÑÓÒ×ÙÒÕÙÖb(b)Ø ÜØÒ×ÓÒÐÓØØÓÑÒ××ËÍ×ÚÙÖ<br />
×ÓÒØÖ×ÔÖÐ×ÖÐ×Ð×ÝÑØÖËÍ×ÚÙÖÒÖØÙÖ× ÙÒÔÐØÄ×Ý×ØÑqqqÖÝÓÒ×ÓÖÑÙÒÑÙÐØÔÐØ ÄØØÒÖÕÙ×ØÙÒÚØÙÖÒÕÓÑÔÓ×ÒØ×ÓÒØÐ×ØÖÒ×ÓÖÑØÓÒ× Ä×ØØ×Ù×Ý×ØÑqqÑ×ÓÒ× ÓÑÔÖÒÒÒØÙÒ×ÒÙÐØËÍ×ÚÙÖØ ØØ×ÕÙ×<br />
ÙÒÓÙÕÙÖÔÐÙ×ÐÖu, d,<br />
BØØÒÙ×ØÙÒÖØÒÒÓÑÖÐÙÖ×ØØ×ÜØ×ÔÖÓÒØÖ×ÙÐ×Ð× ÓÒÓÒÒØÙÒÓ×Ð×ÔÒÒØÖÓÙØ ÄÒÚ×ØØÓÒÑÒÔÙ×ÔÖÑ×ÐÒØØÓÒØÓÙ×Ð×Ñ×ÓÒ× M× ÓÑÔÓ×ÓÑÑ125 = ×ÓÒØ××ÓÖÙ35SÔÐØÙÜ×ÔÒJ =<br />
ÖÝÓÒ×Λ 0 b×Ý×ØÑudb), b (dsb)×ÓÒØÖÓÒÒÙ×ØÐÈ ÑÔÓÖØÒØÕÙÒ×ËÍ×ÚÙÖ Ä××ÔØÖ×Ñ×××ÑÓÒØÖÒØÕÙÐÖ×ÙÖ×ÝÑØÖ×ØÙÓÙÔÔÐÙ× ÉÖÖÖÐ×Ñ×××ÙÑ×ÓÒB ±ØÙΛ 0 bÒ×ÐØÐÈÐ×ÓÑÔÖÖ ÙÜÑ×××ÙK ±ØÙΛÒÙÖÐÑ××ØÚÓÒ×ØØÙØÚÙÕÙÖ <br />
JP = 1<br />
2<br />
JP = 1<br />
2<br />
= 3<br />
2<br />
= 3<br />
+<br />
2<br />
ÖÝÓÒ×ÖÑ×Σ ++ cØΣ 0<br />
Ξ<br />
(D 0 )ØÐÐ×× (K 0 )<br />
(K 0 )ÖÐÐ×ÓÒÒÒØÐÑÒØÐÙÙÔÒÓÑÒ<br />
s, cÓÙu, d, s, c<br />
=<br />
35S ⊕ 40M ⊕ 40 ′ M ⊕ 10AÄ×ÖÝÓÒ××ÔÒJ 3<br />
2<br />
1 2Ù40MÔÐØ40MØ40 ′<br />
0 b<br />
(usb)ØΞ −
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Ä×ÔÖÓÔÖØ×××ÒØÖØÓÒ×Ð×ÙB 0 ÒÖÐØÓÒÚ ÐÐ××Ñ×ÓÒ×K 0 s )ÄÙÖØÙ×Ø ÈÒ××ÔÖÓ××Ù×Ð×ÆÓØÓÒ×ÕÙÐ×ØÙØÓÒ×ØÔÐÙ×ÚÓÖÐÙÒÔÓÒØ ÙÒÑÔÓÖØÒÑÙÖÓÑÑØ×ØØÓÒÒÐÚÓÖ§ÐÚÓÐØÓÒ<br />
0ÖÐ×ÒØÙÖ ÚÙÜÔÖÑÒØÐÚÐ×Ñ×ÓÒ×B 0ÕÙÚÐ×Ñ×ÓÒ×D<br />
0<br />
(B 0 )ØÙB (K 0 ) D0 (D 0 )ØD 0 s (D0<br />
Ä×ÔÖÓÔÖØ×ÙÓØØÓÑÓÒÙÑ×Ý×ØÑbb×ÓÒØÜÔÓ××Ù§ Ò×ÐÜÔÖÒÝÒØÓÒÙØÐÓÙÚÖØÙÕÙÖtÌÚØÖÓÒÄ ×ØÙÖÒÔ×ÒÓÖØÜÔÐÓÖ ÜØÒ×ÓÒÙØÓÔ ××ÒØÖØÓÒ××ØÑÙÜÖÓÒÒ××Ðmb ≫ mc<br />
ÖÑÐ×ÑÒ×Ñ×ÔÖÓÙØÓÒÓÑÒÒØ××ÓÒØ<br />
Ó Ø ØÓÔÓÒÙÑ<br />
qq → tt gg → tt<br />
t → W − Ø b t → W + b Ä×Ó×ÓÒ×W ±×ÓÒØÒØ×ÚÐÙÖ×ÔÖÓÙØ××ÒØÖØÓÒÐÔØÓÒÕÙ ØÖÓÒÕÙÄÕÙÖb×ØÖÓÒÒÙÚ××ÒØÙÖØÖØÖ×ØÕÙ ÇÒÔÔÐÐÓÑÑÙÒÑÒØÕÙÖÓÒÐ×ØØ×Ð×Ø×Ò××ÚÙÖ×ÚÙÖ Ä×ÕÙÖÓÒ<br />
×Ý×ØÑccÐÓØØÓÑÓÒÙÑÐ×Ý×ØÑbbØÐØÓÔÓÒÙÑÐ×Ý×ØÑttÜÔÖ<br />
bÓÙtÄÖÑÓÒÙÑ×ØÐ Óq(q)ÓÒÖÒÙÒ×ÕÙÖ×ÐÓÙÖ×c, ÑÒØÐÑÒØÓÒÓ×ÖÚÐÙÖÓÖÑØÓÒÒ×Ð×ÓÐÐ×ÓÒ×e + e− ppÓÙpÒÓÝÙ<br />
×ÚÙÖ×ÕÙÖ ÙÜÙØ×ÒÖ××ÓÙ×ÐÓÖÑØÖÓØ×Ô×Ö×ÓÒÒÒ×Ð××ØÓÒ× ×ØÓØÐØÔÖØÐÐÚÓÖÔÖÜÐÙÖÀ×ØÓÖÕÙÑÒØ×Ó×Ö ÚØÓÒ×ÓÒØÓÙÙÒÖÐÑÙÖÒ×ÐÓÒÖÑØÓÒÐÜ×ØÒ×ÖÒØ× Ò×ÙÒ×ÖÔØÓÒÒÓÒÖÐØÚ×ØÙÒ×Ý×ØÑqq×ØÖØÖ×ÔÖ×ÓÒ<br />
,<br />
0ÓÙ SÓL×ØÐÑÓÑÒØÓÖØÐÖÐØØSÐ×ÔÒ ÑÓÑÒØÒÙÐÖJ = L + ØÓØÐS = = (−1) ÄÔÖØÙ×Ý×ØÑ×ØÓÒÒÔÖPqq L+1Ø ×ÓÒÙ×ÓÒÖÔÖCqq = (−1) L+SÒÓÑÖÙÜØØ×ÕÙÖÓÒ ÔÙÚÒØØÖÓÖÑ×ÑÔÐÕÙÒØÖÒØ×ÑÒ×Ñ×ÖØÓÒÈÖÜÑÔÐ Ò×Ð×ÓÐÐ×ÓÒ×e + e−ÐÑÒ×ÑÓÖÑØÓÒÓÑÒÒØ×ØÐÒÙÒ ÚJ PC = 1−−ÒÖ×ÕÙÒØÕÙ×ÙÔÓØÓÒÒ×ÐØÐÈ×ØØ××ÓÒØ ΥØθÒÓÒØÓÒ××ÚÙÖ×ÓÒÖÒ× <br />
×Ò×ÔÖÐ××ÝÑÓÐ×ψ(ou J/ψ)<br />
s (B0<br />
s )×ÓÒØÑØØÖ<br />
ÔÓØÓÒÚÖØÙÐÒ×ÐÚÓsÕÙÓÒÒÒ××Ò×ØØ×ÕÙÖÓÒ
∆E [eV]<br />
10 −5<br />
X<br />
10 −4<br />
X<br />
10<br />
0<br />
10<br />
1<br />
2 S0<br />
3<br />
16<br />
5.1eV<br />
α2 mec M1<br />
M1<br />
2<br />
M1<br />
3<br />
2 S1<br />
3<br />
1 S1<br />
7<br />
12<br />
2<br />
α 4<br />
1 P1<br />
m ec<br />
−4<br />
8.4.10 eV<br />
+ −<br />
+ +<br />
+ +<br />
+ +<br />
1 0 1 2 J PC<br />
0 − + 1<br />
1 S0<br />
0<br />
2 γ<br />
− −<br />
1 Ä×ÒÚÙÜÒÖÙÔÓ×ØÖÓÒÙÑ×Ý×Øe + e−ÒÓÒØÓÒÐÙÖ JPCÖØÖ×ØÕÙÄ×ÐÒ×ÒØÖØÐÐ×ÒÒØÐ×ØÖÒ×ØÓÒ×ÓÑÒÒØ× Ð×ÜØØÓÒÑÇÒØÙ×ÐÒÓØØÓÒÐ×ÔØÖÓ×ÓÔØÓÑÕÙ<br />
N2S+1 0ØÒØØØÒÙ×<br />
LJ ÄØØ3S1Ñ×ÓÒÚØÙÖ×ØÐÔÐÙ×ÓÒÒØÐ×ØØ×ÚL > ÔÖÐØÐÖÖÖÑÓÑÒØÒÙÐÖÈÓÙÖ×ÚÐÙÖ×J PCÖÒØ×<br />
ÇÒÔÙØÓÒ×ØÖÙÖÙÒÑÓÐÙÕÙÖÓÒÙÑ××ÙÖÐÑÓÐÙÔÓ×ØÖÓ<br />
0Ö×ÔØÚÑÒØ ...×ÓÒ×ØÒ× ... ×ÓÒ×ØÒ×ÐØØØÖÔÐØ×ÔÒØL>0, ηc, ηb, ...Øhc, hb, ÐØØ×ÒÙÐØ×ÔÒØL = 0ØL > ÒÙÑ×Ý×ØÑe + e−ÒÓÒÒÙÒØÓÖÉÒÔÖÑÖÔÔÖÓÜÑØÓÒÓÒ ÔÙØÖÖÖÐ×ÒÚÙÜÒÖ×ØØÓÒÒÖ××Ý×ØÑÔÓÙÖÙÒÔÙØ× ÔÓØÒØÐÓÙÐÓÑÒVem = −α rÓα=e 2 /c×ØÐÓÒ×ØÒØ×ØÖÙØÙÖÒ<br />
1 −−ÐØÐÈÑÔÐÓÙÒÒÓØØÓÒ×ÔØÖÓ×ÓÔÕÙÖÒχc, χb,<br />
ËÐÓÒÐØÐÈ ÙÙÒØØηbÒÒÓÖØÐÖÑÒØÒØ<br />
<br />
E1<br />
E1<br />
2<br />
2<br />
3 P0<br />
2<br />
3 P1<br />
2<br />
3 P2
V [GeV]<br />
5<br />
0<br />
−5<br />
−10<br />
0<br />
0.5 1 1.5 2 2.5 3<br />
dominance <strong>de</strong> Kr<br />
r [fm]<br />
4<br />
dominance <strong>de</strong> 1<br />
3 r<br />
αs<br />
−15<br />
ÔÓÖØÓÒÐÙÖÚÙÒÐÐÐØØÐÒÖÒ××× ÈÙØ×ÔÓØÒØÐÙÕÙÖÓÒÙÑVQCD(r)ÖÔÕÙ×ØÙÒ<br />
×ÒÚÙÜ×ÓÒØÖÔÖ×ÒØ×ÔÖÐÖÐØÓÒÓÖ<br />
−20<br />
2<br />
2 mec 1<br />
EN = −α<br />
4 N2 Ó<br />
ÐÒÓÑÖÕÙÒØÕÙÓÖØÐ<br />
...Ò×ÔØÖÓ×ÓÔN×ØÔÔÐÐÒÓÑÖÕÙÒØÕÙÔÖÒÔÐ1×Ø<br />
ÓÖØÐØÔÖØ×ÒÚÙÜÒÖ×ÒNØØÔÖØÓÒ×ØÒ×ÓÖ<br />
N<br />
ÚÐÓ×ÖÚØÓÒÚÓÖÙÖ<br />
= 1, 2,<br />
N<br />
ÔÖÐÒØÖÓÙØÓÒÖÒØ×ØÖÑ×ÓÖÖØ×VemÄÓÙÔÐ×ÔÒÓÖØ ØØÖÐØÓÒÓÒØÒØÑÔÐØÑÒØÐ×ÓÒØÖÙØÓÒ×ÜØØÓÒ×ÖÐØ ÇÒÔÙØÖØÐÖÙÒÓÖÔÐÙ××Ø××ÒØ<br />
= n + Ln = 1, 2, ...×ØÐÒÓÑÖÕÙÒØÕÙÖÐL=0 N −<br />
Ð×ÓÖÖØÓÒ××ÒÚÙÜÙ×VLSØVSS×ÓÒØÓÑÔÖÐ×ÒÑÔÓÖØÒØ ×ÒÚÙÜÐØÖÓÒÕÙ×ÐØÓÑØ×ÒÚÙÜÒÙÐÓÒÕÙ×ÙÒÓÝÙÇÒ Ð×ÖØÖÓÙÚÚÐÔÓ×ØÖÓÒÙÑØÚÐÕÙÖÓÒÙÑ×ÐÓÒÐØÓÖÉ<br />
SØÐÓÙÔÐ×ÔÒ×ÔÒVSS×ÓÒØÒÓÒÒÙ×Ò×Ð×ÖÔØÓÒ<br />
ÐÓÖÖ<br />
VLS ≈ L ·<br />
∆E ≃ α 4 mec 2 · 1<br />
N3 ÎÓÖÔÖÜÑÔÐÖÖÒ
masse [GeV]<br />
4.5<br />
4.0<br />
3.5<br />
ηc(2S)<br />
ψ(4415)<br />
ψ(4160)<br />
ψ(4040)<br />
ψ(3770)<br />
ψ (2S)<br />
γ γ<br />
χ c1(1P)<br />
seuil<br />
DD<br />
χ c2 (1P)<br />
− + − − + − + + + + + +<br />
0 1 1 0 1 2 JPC γ<br />
h c(1P)<br />
χc 0<br />
ππ η, π<br />
ψ(1S)<br />
γ γγ<br />
hadrons<br />
hadrons<br />
ηc<br />
3.0<br />
0<br />
γ *<br />
hadrons<br />
(1P)<br />
hadrons<br />
J hadrons<br />
(1S)<br />
γ*<br />
ØØ×ÒÙÐØ×ÔÒ×ØÖØX(nL)ÙÒØØØÖÔÐØXJ(nL)Ón×ØÐÒÖ ÐÒ××ÒÕÙÒØÐ×ØÖÒ×ØÓÒ×ÓÑÒÒØ×ØØÒÙ×ÄÒÓØØÓÒ×Ø ÐÐÐØÐÈÕÙ×Ò×ÔÖÐÒÓØØÓÒ×ÔØÖÓ×ÓÔÒÙÐÖÙÒ<br />
hadrons hadrons radiatif<br />
ÒÙÑÐÐØÖÓÒØÐÔÓ×ØÖÓÒÔÓÙÚÒØ×ÒÒÐÖÒÔÓØÓÒ×ÖÐ×ÄØÓÑÒ<br />
ÕÙÒØÕÙÖÐLÐÒÖÕÙÒØÕÙÓÖØÐÖÔÔÐN = n + L J = L + S<br />
×ÓÖÖØÓÒ××ØÒÐÙ×Ò×Ð×ÔØÖÖÔÖ×ÒØÐÙÖØÓÒÝ 0)ÙÔÓ×ØÖÓ<br />
S = 0ÓÙ1) ÁÐ×ÝÓÙØÙÒÓÖÖØÓÒ×ÔÕÙØÒØÐ×ÒÚÙÜ1S(L − ÓÒÒÜÔÐØÑÒØÐ×ÔÖØÓÒÒØÖÐ×ÒÚÙÜ1 3S1Ø1 1 Ð×ØÖÒ×ØÓÒ×ÑÓÑÒÒØ××ÓÒØÒÕÙ××ÙÖÐÙÖÐÐ×ÓÒØØÐÓØ É×ØØÖ×ÓÒØÓÙØÙÑÓÒ×ÔÓÙÖÐ×ÔÖÑÖ×ÒÚÙÜ Ñ×ÙÖ××ÔØÖÓ×ÓÔÕÙ×ÙØÔÖ×ÓÒÐÓÖÚÐ×ÔÖØÓÒ× Ä×ÒÚÙÜ×ÙÔÖÙÖ×ÙÔÓ×ØÖÓÒÙÑ××ÜØÒØÔÖÑ××ÓÒÔÓØÓÒ×<br />
S0<br />
Ä×ÔÖØÓÒÑ×ÙÖ×ÒÚÙÜ2 1S0Ø1 1 ÙÒÚÐÙÖÔÔÖÓÜÑØÚαÐS0×ØÎÓÒÔÙØÒØÖÖ <br />
2<br />
2 mec<br />
<br />
1<br />
<br />
Ä×ÒÚÙÜÒÖÙÖÑÓÒÙÑÒÓÒØÓÒÐÙÖJ PCÄ×<br />
ÎÒÓÒ×ÒÑÒØÒÒØÐÔÖØÓÒ×ÒÚÙÜÒÖÙÕÙÖÓÒÙÑ<br />
<br />
E2 − E1 = −α<br />
4<br />
− 1<br />
4<br />
α =<br />
<br />
16 5.1 [eV ]<br />
3 0.51 · 106 <br />
[ eV ]<br />
γ<br />
, Ó<br />
= 1<br />
136.9
ØØcc JPC Ñ×× ÐÖÙÖ<br />
<br />
[MeV ] [MeV ]<br />
<br />
<br />
ÐÙÖ ÌÅ×××ØÐÖÙÖ×ÒØÖÒ×ÕÙ×ØØ×ÒØ×ÙÖÑÓÒÙÑ ØÐÈ ÄÒÓØØÓÒ×ÔØÖÓ×ÓÔÕÙÙØÐ××ØÒÒ×ÐÐÒ<br />
Ò×ÐÖÐÔÔÖÓÜÑØÓÒÒÓÒÖÐØÚ×ØÊÑÖÕÙÓÒ×ÕÙØØÔÔÖÓÜ ÑØÓÒ×Ù×ØÙØÕÙÐ×ÓÒ×ØØÙÒØ×Ù×Ý×ØÑ×ÓÒØÐÓÙÖ×(mc ≃<br />
1.8 GeV/c2 , mb ≃ 5.3 GeV/c2 , mt ≃ 175 GeV/c2 ÒØÖØÓÒqqÚÓÖÖÐØÓÒ ÇÒÙÐÓ×ÓÒÔÖ×ÒØÖÙÒÓÖÑÔÐÙ×ÐÔÓÙÖÐÔÓØÒØÐ )<br />
VQCD = − 4 Ó αs<br />
+ Kr ,<br />
3 r<br />
ηc(1S) 0−+ ηc(2S) 0 −+ J/psi(1S) 1 −− ψ(2S) 1 −− <br />
hc(1P) 1 +− χc0(1P) 0 ++ χc1(1P) 1 ++ χc2(1P) 2 ++ <br />
αs×ØÐÓÒ×ØÒØÓÙÔÐÓÖØ<br />
K×ØÙÒÔÖÑØÖÑÔÖÕÙ <br />
3×ÖÙ×ØÙ§<br />
ÚÒØÒ×ÐÑÓÐÙÔÓ×ØÖÓÒÙÑ×ÓÖÖØÓÒ× ÔÖÑØ××ÙÖÖÐÓÒÒÑÒØ×ÕÙÖ×ÚÓÖÙÖ ØÐÒÙÒÐÙÓÒÐ×ÓÒØÖÑÔÖÔÓÒÖÒØÙÜÖÒ××ØÒ× ÊÔÔÐÓÒ×ÕÙÐÔÖÑÖØÖÑ ÓÑÒÒØÙÜÓÙÖØ××ØÒ×Ö ×ÓÒØÔÔÓÖØ××ÓÙ× ÓÑÑÙÔÖ<br />
ÐØÙÖ4
ØØbb JPC Ñ×× ÐÖÙÖ<br />
<br />
[MeV ] [MeV ]<br />
Υ(1S) 1−− <br />
Υ(2S) 1−− <br />
Υ(3S) 1−− <br />
<br />
<br />
ÌÅ×××ØÐÖÙÖ×ÒØÖÒ×ÕÙ×ØØ×ÒØ×ÙÓØØÓÑÓÒÙÑ <br />
ÐÙÖ ØÐÈ ÄÒÓØØÓÒ×ÔØÖÓ×ÓÔÕÙÙØÐ××ØÒÒ×ÐÐÒ<br />
ØÖÒ×ØÓÒ×ÔÖØ×ÔÖÐÑÓÐ×ÕÙÖ×ÔÓÙÖÐ××Ý×ØÑ×ÙÖÑÓÒÙÑ ÒØÖÒ×ÕÙ×Ñ×ÙÖ×ÔÓÙÖÐ×ÖÒØ×ØØ×ÒØ×ØÐÈ ØÙÓØØÓÑÓÒÙÑÄ×ØÐÙÜØÓÒÒÒØÐ×Ñ×××ØÐÖÙÖ× ÑÔÖÕÙÑÒØÄ×ÙÖ×ØÑÓÒØÖÒØÐ×ÒÚÙÜÒÖØÐ×<br />
ÐÓÖÖÙÔÓÙÖÒØÐ×ÔÖÑÖ×ÒÚÙÜÜØØÓÒØÓÙØÙÑÓÒ× ÑÓÐØÓÖÕÙÔÖÑØÖÔÖÓÙÖÐ×ÒÚÙÜÓ×ÖÚ×ÙÒÔÖ×ÓÒ ÇÒÔÙØÚÐÙÖÐÓÒ×ØÒØÓÙÔÐÓÖØαs(E)ÔÖØÖÐ×ÔÖØÓÒ Ä<br />
Ñ×ÙÖ×ÒÚÙÜÒÖ2 3S1Ø1 3S1ØÒÙØÐ×ÒØÐÖÐØÓÒ Ó<br />
<br />
ηb(1S) 0 −+ <br />
χb0(1P) 0 ++ χb1(1P) 1 ++ χb2(1P) 2 ++ χb0(2P) 0 ++ <br />
χb1(2P) 1 ++ <br />
χb2(2P) 2 ++ <br />
ÐÓÖÑÓÙÔÐ×VLSØVSSÐÐ×ÑÒÒØ×ÔÖÑØÖ×ÕÙ×ÓÒØÙ×Ø×
Masse [GeV]<br />
11.0<br />
10.5<br />
10.0<br />
η b (3S)<br />
ηb<br />
(2S)<br />
hadrons<br />
I (11019)<br />
I (10865)<br />
I (10580)<br />
I (3S)<br />
hadrons<br />
I (2S)<br />
hadrons<br />
γ<br />
γ<br />
hb<br />
hb<br />
η<br />
I<br />
b<br />
− + − − + −<br />
1 1<br />
+ + + + + +<br />
0 0 1 2 JPC γ γ<br />
9.5<br />
(1S)<br />
(1S)<br />
Ä×ÒÚÙÜÒÖÙÓØØÓÑÓÒÙÑÒÓÒØÓÒÐÙÖJ PCÄ× ÙØÐ×ÚÓÖÐÜÔÐØÓÒÓÒÒÒ×ÐÐÒÐÙÖ ÐÒ××ÒÕÙÒØÐ×ØÖÒ×ØÓÒ×ÓÑÒÒØ×ØØÒÙ×ÈÓÙÖÐÒÓØØÓÒ<br />
b0<br />
b1<br />
Seuil BB<br />
χ<br />
χ<br />
(2P) b0(2P) b1(2P) b2(2P)<br />
χ<br />
γ<br />
(1P)<br />
χ (1P)<br />
9<br />
9<br />
9 9<br />
9<br />
9 9<br />
9<br />
9 99<br />
9<br />
9<br />
9<br />
χ (1P)<br />
χ (1P)<br />
a) b)<br />
K<br />
s<br />
u<br />
K<br />
s s<br />
φ<br />
J/ ψ<br />
+<br />
u<br />
s<br />
M1 q1 M2 q2<br />
q2 M3<br />
q3 q3<br />
q1<br />
ÖÑÑ×ÓÑÒÒØ×Ð×ÒØÖØÓÒØØ×ÙÖÑÓÒÙÑ<br />
c<br />
c<br />
ØØ×J PC = 1−−×ØÙ×Ù××Ù×Ù×ÙÐDDÖÑÑÓÒÒØØØ× JPC = 1−−×ØÙ×Ù××ÓÙ×Ù×ÙÐDDÖÑÑÓÒÒØÚÒ ÐÙÓÒ×ÚÖØÙÐ×MiÑ×ÓÒ×ÒÓÒÖÑ×<br />
<br />
b2
4<br />
3αs×Ø×Ù×ØØÙÖαÐÒÖÓÖÖ×ÔÓÒÒØÐÑ××ÙÖÑÓÒÙÑ αs(mJ/ψ) ≃ 3 ÐÒÖÑ××ÙÓØØÓÑÓÒÙÑÐÐÙÐÓÒÒ<br />
1<br />
2<br />
16 3.69 − 3.10<br />
≃ 1.<br />
4 3 1.8<br />
αs(mΥ) ≃ 3<br />
ÔÖÑÖ×ÒÚÙÜÙ×ÔØÖ××ØÙÒØÙ××ÓÙ×Ù×ÙÐ×ÒØÖØÓÒÒ ÙÜÖÓÒ×ÔÓÖØÙÖ×Ð×ÚÙÖÕÙÖÐÓÙÖÓÒÖÒÒ×ÐÖÑÓÒÙÑ ÄÑÓÐÙÕÙÖÓÒÙÑÖÚÐÙÒÖØÖ×ØÕÙÔÖÓÔÖ×Ý×ØÑÐ×<br />
1<br />
2<br />
16 10.02 − 9.46<br />
≃ 0.5<br />
4 3 5.3<br />
×ÓÒØÒ××ÓÙ×Ù×ÙÐ×ÒØÖØÓÒÒBBÚÓÖÙÖÈÓÙÖ× ÚÓÖÙÖ<br />
ÖÑÑÓÒÒØÚÓÖÙÖØÓÒÙÒÔÖÓ××Ù×ÓÖØÑÒØÒ ÚÔÖÓÙØÓÒÖÓÒ×ÐÖ×ÄÑÒ×ÑÒ××ÓÒ×ÑÔÐÕÙÙÒ ÒÚÙÜÐ×ÒØÖØÓÒÔÙØØÖ×ÓØÑÚÑ××ÓÒÔÓØÓÒ××ÓØÓÖØ Ð×ÒÚÙÜL<br />
ÖÐÇÁÚÓÖ§ÇÒÓÑÔÖÒ×ÐÓÖ×ÔÓÙÖÕÙÓ×ØØ×ÕÙÖÓÒ<br />
= 0, N = n < 3×ÓÒØÒ××ÓÙ×Ù×ÙÐ×ÒØÖØÓÒÒDD ØÒ×ÐÓØØÓÑÓÒÙÑÐ×ÒÚÙÜL = 0, N = n < 4<br />
ÉÒ×ÐÖÑÑÐÙÖÓÒØÖÓ×ÐÙÓÒ×Ò×ÁÒÕÙÖ 50ÃÎ<br />
≃ 90ÃÎ, ÓÒØ×ÐÖÙÖ×ÒØÖÒ×ÕÙ×ÖÙØ×ÔÖÜΓJ/ψ ΓΥ ≃ Ð×ÖÐ××ÐØÓÒØÖÑÒÒØ×ÓÑÔÖÖÐÒÒÐØÓÒe + e−ÐÖÖØÒ× ÐØØØÖÔÐØ×ÔÒ<br />
ÇÒÔÙØÐÓÑÔÖÒÖÒÖÔÔÐÒØÕÙÔÖ×ÙØÐÓÒ×ÖÚØÓÒCÐ ÊÐÚÓÒ×ÒÓÖÕÙÐ×ØØ××ÒÙÐØ×ÓÒØ×ÐÖÙÖ×ÒØÖÒ×ÕÙ×Ò×Ù 13ÅÎ ÔÖÙÖ×ÐÐ××ØØ×ØÖÔÐØ×ÓÖÖ×ÔÓÒÒØ×ÔÖÜΓηc(1S) ≃ ÑÒ×ÑÓÑÒÒØ×ØÙÒÒÙÜÐÙÓÒ×Ò×ÐÔÖÑÖ×Γ ≈ α2 s ) ØØÖÓ×ÐÙÓÒ×Ò×Ð×ÓÒΓ ≈ α3 s )<br />
ÆÓØÖÓØ×ØÔÔÖÓÓÒÖÐÜÑÒÙ×ÙØÒÔÖØÙÐÖÑÓÒØÖÖ ÄÓÒÔØÐÖÓÙÐÙÖØÓÖÙ§ØÙ§ ÄÖÓÙÐÙÖËÍ ÓÙÐÙÖ<br />
ÐÚÒØÖÒØ××ØÙØÓÒ×ÔÖØÕÙ×Ù×ØÖÐÔÓ×ØÙÐØÓÒØÒÙÒ×Ð× ÖÐØÓÒ× ÔÔÐØÓÒ×ÖÓÑÓÑÒØ×ѧ ÓÑÑÒØÓÒÔÙØØÖÑÒÖÐ×ØÙÖ×ÓÙÔÐ×ØÙÖ×ÓÙÐÙÖÖ Ø Ø§ 1/2ÙØÐ×Ò×Ð×<br />
4.5ÅÎÒÓØÓÒ×ÕÙÐ<br />
ØÖØÖÓÙÚÖÐØÙÖαqq/αqq =<br />
<br />
−1ÓÑÑÐÔÓØÓÒ ÐÒÖÑ××ÙÓ×ÓÒÐØÐÈÓÒÒαs(mZ) ≃ 0.12) ÈÖÓÑÔÖ×ÓÒÐÑ×ÓÒφ×Ý×ØÑssÙÒÐÖÙÖΓφ ≃ ÊÔÔÐÐÐÙÓÒÙÒÓÒÙ×ÓÒÖCÐÙÓÒ=<br />
Ñ××Ùφ ÅÎÔ××Ð×ÙÐ×ÒØÖØÓÒÒKK
ÔÖÐ×ÖÐØÓÒ×ÓÑÑÙØØÓÒ ØÖØÒØ×ÙÔÔÓ×ÜØÄ×ÒÖØÙÖ×ÖÓÙÔ×ÓÒØÐ×ÙØÑØÖ× ÊÔÔÐÓÒ×ÕÙÐØÓÖÉ×Ø××ÙÖÐÖÓÙÔËÍ Ò×ÉÓÒÑØÕÙÙÒÕÙÖ ÐÐÖÙÖÓÙÔ×ØÐÙÒ ÓÙÐÙÖØØ×ÝÑ<br />
ÓÙÐÙÖÔÙØÔÖÒÖØÖÓ×ÓÙÐÙÖ×ÖÒØ×ÕÙÓÒÔÔÐÐÓÑÑÙÒÑÒØ ÒØÖØÓÒÑØÙÒÖÓÙÐÙÖ×ÓÙÖÒØÖØÓÒÓÖØÁÐ×× ØÒÙÒÐÓÒÑÒØÐÑÒØÙÒÐÔØÓÒÔÐÙ×ÓÒÔÓ×ØÙÐÕÙÐÖ<br />
ÐÐÅÒÒλi(i =<br />
ÖÐØÖÕÙ×ÒÓÔÔÓ×ØÙ××ÙÒÖÓÙÐÙÖ×ÒÓÔÔÓ×<br />
×ÚÙÖÓÒÒ(q =<br />
×ØÖÓ×ØØ×ÓÙÐÙÖØ×ØÖÓ×ØØ×ÒØÓÙÐÙÖ×ÓÒØÐ×ÚØÙÖ×<br />
λ8<br />
ÖÓÙÖÚÖØØÐÙÄÒØÕÙÖ(q = ÕÙÓÒÔÔÐÐr, g, ×Ø3ÐÖÔÖ×ÒØØÓÒÙÖÓÙÔÒ×ÐÔÐÒλ3,<br />
ÄÒØÖØÓÒÒØÖÙÜÕÙÖ×ÓÙÒØÖÙÒÒØÕÙÖØÙÒÕÙÖ×ØÔÖÓÔ ÔÖÙÒÐÙÓÒÚØÙÖÔÔÖØÒÒØÐÓØØ(8c)ÓÙÐÙÖÒØÓÙÐÙÖÒ×<br />
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Ä×ØØ×ÐÙÓÒ×Ò×Ò××ÓÒØÔÓÖØÙÖ×Ö×ÓÙÐÙÖØØ ÔÙÚÒØÒØÖÖÒØÖÙÜ ÄØØÐÙÓÒÔÔÖØÒÒØÙ×ÒÙÐØ(1c)ÓÙÐÙÖÒØÓÙÐÙÖ<br />
×ØÙÒÒÚÖÒØ×ÓÙ×Ð×ØÖÒ×ÓÖÑØÓÒ×ËÍ ÒÔÖÖÔ×ÙÖÐÖÐÔÓ××ÐÙÒØÐ×ÒÙÐØÐÙÓÒ ØÖØÓÒÓÖØÒØÖÕÙÖ×ÓÙÒØÕÙÖ×ÔÓÖØÙÖ×ÓÙÐÙÖÇÒÖÚÒÖÒ ÊÐÚÓÒ×ÐÖÒÚËÍ×ÚÙÖÕÙÒ×ØÕÙÙÒ×ÝÑØÖÔÔÖÓ<br />
ÓÙÐÙÖÐÒÓÒØÖÙÔ×ÐÒ<br />
Ô×ÖÐØÖÕÙ Ö ÆÓØÞÐÖÒ×ØÙØÓÒÔÖÖÔÔÓÖØÐÐÔÖÚÐÒØÚÐÔÓØÓÒÕÙÒÔÓÖØ ÆÓØÓÒ×ÕÙ×ÓÙÐÙÖ×ÒÓÚÒØÔ×ØÖÔÖ××Ù×Ò×ÐØØÖÐÑ×ÓÑÑ×ÚÐÙÖ×<br />
<br />
8)ÖØ×Ò ...)×ØÔÓÖØÙÖÐÓ×ÙÒÖÐØÖÕÙ×ÓÙÖ<br />
1, ... ,<br />
...)×ØÔÓÖØÙÖÙÒ<br />
u, d, s,<br />
u, d, s,<br />
b<br />
<br />
⎡ ⎤<br />
⎡ ⎤<br />
8cÑØØÖÒÔÖÐÐÐÚÐÓØØqq×ÚÙÖ<br />
r r<br />
|ÓÙÐÙÖ〉 = ⎣ g ⎦ , ÓÙÐÙÖ = ⎣ g ⎦<br />
b<br />
b<br />
3c ⊗ 3c = 1c ⊕<br />
g1 = br , g2 = gr , g3 = gb ,<br />
g4 = rb , g5 = rg , g6 = bg ,<br />
g7 = 1 √ 2 (rr − gg) , g8 = 1<br />
√ (rr + gg − 2bb)<br />
6<br />
g0 = 1 <br />
√ (rr + gg + bb)<br />
3
ÐÐÙ×ØÖØÓÒ×ÙÓÙÖÒØÓÙÐÙÖÓÖÖ×ÔÓÒÒØ<br />
b) ËØÙØÓÒ×ÓÙÔÐÓÙÐÙÖÒØÖÙÜÕÙÖ×ÖÒØ×(r,<br />
a) b)<br />
r<br />
r<br />
r<br />
r<br />
r r<br />
ËØÙØÓÒÓÙÔÐÓÙÐÙÖÒØÖÙÜÕÙÖ×ÒØÕÙ×(r) ÓÙÖÒØÓÙÐÙÖÓÖÖ×ÔÓÒÒØ<br />
g7 , g8 r<br />
r<br />
r<br />
r<br />
ÒØÕÙÖ×ÐÙÓÒ×ÖÒØ××ØÙØÓÒ××ÓÒØÐÐÙ×ØÖ×Ò×Ð×ÙÖ×Ø ÎÒÓÒ×ÒÙÐÙÐ×ØÙÖ×ÓÙÔÐÒØÖÚÒÒØÙÜÚÖØÜÕÙÖ× ÄÙÖÔÖ×ÒØÐ×ÙÜ×ØÙØÓÒ×ÓÙÔÐÓÙÐÙÖÒØÖ<br />
<br />
ÙÜÕÙÖ×ÖÒØ×ÔÓÖØÙÖ×ÔÖÜÖ×rØbÒ×ÐÓÙÔÐrb → br<br />
9<br />
9<br />
9<br />
9<br />
9
ÒØÖÒÐÒÓÑÔØÒ×ÐÒÕÙÓÒÒ ×ØÐÒ<br />
= ×ÙÐÐØØÐÙÓÒg1 ÐÓÒØÖÙØÓÒ〈rb|Hc|br〉 = rb<br />
= ÐØØÐÙÓÒg8 3β2ÄÖÒÙÖβÒØÖÓÙØÙÜÚÖØÜÕÙÖ× ×ØÖØÑÒØÖÐÐÓÒ×ØÒØÙÓÙÔÐÓÖØαsÓÑÑÓÒÚÐÚÓÖ ÐÙÓÒ×ØÙÒÑ×ÙÖÐÓÖÓÙÐÙÖ−βÙÚÖØÜÒØÕÙÖ×ÐÙÓÒÐÐ<br />
ØÝÔÓÙÔÐ ÓÙÐÙÖ ØØ×ÐÙÓÒ Ò× ÙÓÙÔÐ ÓÒØÖÙØÓÒ<br />
〈rb|Hc|rb〉 = 1 √ 6 (− 2<br />
+β2Ò×ÐÓÙÔÐrb → 1 −2bb)ÕÙÐÙÔÓÙÖÐÕÙÐÓÒÐÓÒØÖÙØÓÒ<br />
√ (rr+gg<br />
6<br />
√ β<br />
6) 2 = −1 rb → br g1 +β 2<br />
rb → rb g8 − 1<br />
3 β2<br />
rr → rr + g7Øg8 2<br />
3β2 rr → bb g1 −β2 br → br g8 + 1<br />
3β2 rr → rr − g7Øg8 2<br />
3β2 ÌØÙÖ×ÓÙÔÐÔÓÙÖÖÒØ××ØÙØÓÒ×ÔÖØÕÙ×Ä×ØØ× ÐÙÓÒ××ÓÒØÙÜÒ×Ò×ÐÖÐØÓÒ ÙØÖ××ØÙØÓÒ×ÔÙÚÒØØÖ<br />
ÄÙÖÔÖ×ÒØÐ×ØÙØÓÒÓÙÔÐÓÙÐÙÖÒØÖÙÜÕÙÖ× ÖÐ××ÔÖÔÖÑÙØØÓÒ×r↔gÓÙb ↔ g<br />
ÒØÕÙ×ÔÓÖØÙÖ×ÔÖÜÐÖr: rr → rrÐ×ØØ×ÐÙÓÒ×g7Øg8 ÔÖØÔÒØÐÒØÓÒÒÒØÐÓÒØÖÙØÓÒØÓØÐ〈rr|Hc|rr〉 = 1 √ √1 β<br />
2 2 2 +<br />
√1 1√ β<br />
6 6 2 = + 2<br />
3 β2Ä×ÓÒØÖÙØÓÒ×ÖÐØÚ×ÙÜÓÙÔÐ×ÓÙÐÙÖÑÔÐÕÙÒØ ÙÒÕÙÖØÙÒÒØÕÙÖ×Ù×ÒØ×Ö×ÙÐØØ×ÔÖÒØ×ÒØÙÒØÙÒ<br />
ÖÓÒ×Ó×ÖÚ× ÐÒ×ÑÐ××ØÙØÓÒ×ÚÓÕÙ×××Ù× ÒÑÒØÙ×ÒβÙÚÖØÜÒØÕÙÖ×ÐÙÓÒÄØÐÙÖ×ÙÑ<br />
ØØ×ÐÓØØÓÙÐÙÖÈÓÙÖÐØØ×ÒÙÐØÐÓÑÔÓ×ÒØÓÙÐÙÖÐ ÄÔÖqqÑ×ÓÒÔÙØØÖÒ×ÐØØ×ÒÙÐØÓÙÐÙÖÓÙÒ×ÙÒ× ÔÔÐÕÙÓÒ×ÑÒØÒÒØ×Ö×ÙÐØØ×ÙÜ×Ý×ØÑ×qqØqqq××ÓÐ×ÙÜ<br />
<br />
ÊÔÔÐ3 ⊗ 3 = 1 ⊕ 8
ÓÒØÓÒÓÒ×ÖØÚÓÖ |qq, 1c〉 = 1 √ (rr + gg + bb)<br />
3 ÄÓÑÒ×ÓÒÓÙÐÙÖrrÒÖØÖÓ×ÓÒØÖÙØÓÒ×ÐÐrr → rr(− 2<br />
3β2 ) ÐÐrr → bb(−β2 )ØÐÐrr → gg(−β2 )ÓÒØÐ×ÓÑÑØ− 8<br />
3β2Ä× ÔÖ×ÝÑØÖÔÖ×ÚÓÖØÒÙÓÑÔØÙØÙÖÒÓÖÑÐ×ØÓÒÐÓÒ ÙÜÙØÖ×ÓÑÒ×ÓÒ×ÓÙÐÙÖ(ggØbb)ÓÒÒÒØ××ÓÑÑ×ÕÙÚÐÒØ× ØÓÒÓÒÓÒÓØÒØÐÓÒØÖÙØÓÒØÓØÐ1 √3 √<br />
1<br />
· 3 · (−<br />
3 8<br />
3β2 ) = − 8 ×ÒÒØ×ÒÕÙÐÒØÖØÓÒÒÕÙ×ØÓÒ×ØÒØÙÖØØÖØÚÈÓÙÖ<br />
ÑÑÔÖÓÙÖÕÙ××Ù×ØÒ×ÔÔÙÝÒØ×ÙÖÐ×ÓÒÒ×ÙØÐÙ ×ØÖÙØÙÖÓÙÐÙÖÕÙÐ×ÓÑÔÓ×ÒØ×ÐÓØØÐÙÓÒ×ÖÐØÓÒ ÓÒØÖÙØÓÒÕÙØØÙÓÙÔÐÓÙÐÙÖÔÙØØÖØÐÒ×ÙÚÒØÐ<br />
8c〉ÓÒØÐÑÑ Ä Ð×ØØ×ÐÓØØÐ×ÓÑÔÓ×ÒØ×ÐÓÒØÓÒÓÒ|qq,<br />
ÇÒØÖÓÙÚÕÙØØÓÒØÖÙØÓÒÚÙØ+ 1<br />
3β2ÔÓÙÖÙÒ×ÙØØØ×ÐÐ ÖÔÖ×ÒØÙÒÒØÖØÓÒÒØÙÖÖÔÙÐ×Ú ÉÑÓÒØÖÖÕÙÔÓÙÖÐ×ÑÑÖ×ÐÓØØÓÙÐÙÖÐÔÖqqÐÓÒØÖ ÙØÓÒÙÓÙÔÐÓÙÐÙÖÚÙØ+ 1<br />
3β2 ÓÙÐÙÖÓÙÒ×ÙÒØØÙ×ÜØØÓÙÐÙÖÐÐ××ÓÒØÓÙÔÐ×ÙØÖÓ×Ñ ×Ö×ÙÐØØ×Ù×ØÒØÐÔÓ×ØÙÐØÓÒØÒÙÑÔÐØÑÒØÒ×ÐÖÐØÓÒ Ä×ÔÖ×qqÙ×Ý×ØÑqqqÖÝÓÒÔÙÚÒØØÖÒ×ÙÒØØÐÒØØÖÔÐØ <br />
ÕÙÖØÖÔÐØÓÙÐÙÖÔÓÙÖÓÖÑÖÐÙÒ×ÖÔÖ×ÒØØÓÒ×ÖÖÙØÐ×<br />
8cÓÙ10c<br />
ÒÓÙ××ÙØÚÐÙÖÐÓÒØÖÙØÓÒÐÔÖÑÖÒÒÓÙ×ÖÔÓÖØÒØÙØÐÙ<br />
rg)ÓÒØÐ×ÓÒØÖÙØÓÒ×ÙÓÙÔÐ×ÓÒØÕÙÚÐÒØ×ÔÖ×ÝÑØÖÁÐ ÐÒ×ÑÐqqq1c, ÓÒÐ×ÓÒÙÖØÓÒ×ÓÙÐÙÖ(rb ÈÓÙÖÐÒØØÖÔÐØ qq, 3 −br) (bg −gb)<br />
Ø(gr −<br />
〈rb − br|Hc|rb − br〉 = 〈rb|Hc|rb〉 + 〈br|Hc|br〉 − 〈rb|Hc|br〉 − 〈br|Hc|rb〉 =<br />
2(− 1<br />
3 β2 ) − 2(β 2 ) = − 8<br />
ÚÓÖ ÓÒÓØÒØÔÓÙÖÐÒ×ÑÐ×ØÖÓ×ÓÒÙÖØÓÒ×ÓÙÐÙÖÐ ÌÒÒØÓÑÔØÙØÙÖÒÓÖÑÐ×ØÓÒÐÓÒØÓÒÓÒÙ×Ý×ØÑqqq<br />
2 ÔÖqq √6 1 3 −8 3β2 = −4 3β2 ÈÓÙÖÐ×ÜØØ|qq, 6c〉ÓÒÐ×ÓÒÙÖØÓÒ×ÓÙÐÙÖrr, 1 bb, gg, √2 (rb+<br />
br), 1 (gb+bg)ÐÐÙÐÑÓÒØÖÕÙÐÙÖÓÒØÖÙØÓÒÒ×ÑÐ<br />
√ (rg +gr)Ø1 √2<br />
2 ÚÙØ+ 2 ÊÔÔÐ3 ⊗ 3 = 3 ⊕ 63 ⊗ 3 ⊗ 3 = (3 ⊕ 6) ⊗ 3 = 1 ⊕ 8 ⊕ 8 ′ <br />
⊕ 10<br />
3 β2ÓÙÔÐÖÔÙÐ×<br />
3 β2 ÓÙÔÐØØÖØ<br />
3 β2Ä
ÉÑÓÒØÖÖÕÙÔÓÙÖÐ×ÑÑÖ×Ù×ÜØØÓÙÐÙÖÐÔÖqqÐÓÒØÖ ÙØÓÒÙÓÙÔÐÓÙÐÙÖÚÙØ+ 2 ×Ö×ÙÐØØ×ÓÒØ×ÑÔÐØÓÒ×ÒØÖ××ÒØ××ÙÖÐ×ÓÙÔÐ×ÓÙÐÙÖ<br />
×ØÒ×ÐØØ×ÜØØÓÙÔÐÖÔÙÐ×ÒÒÒ×Ð×ÙÜÓØØ×ÓÙÐÙÖ ÑÒØÒØ×ÝÑØÖÕÙØÓÙØÔÖqq×ØÒ×ÐØØÒØØÖÔÐØÓÙÔÐØØÖØ 1c〉ÓÑÔÐØ ÔÓ××Ð×Ù×Ý×ØÑqqqÒ×ÐØØ×ÒÙÐØÓÙÐÙÖ|qqq, Ò×ÐÙÔÐØÓÙÐÙÖ|qqq, 10〉ÓÑÔÐØÑÒØ×ÝÑØÖÕÙØÓÙØÔÖqq<br />
|qqq, 8cØ8 c 〉ÖØÒ××ÔÖ×qq×ÖØØÒØÐÒØØÖÔÐØØÙØÖ×Ù Ù×ÒÙÐØÙ×Ý×ØÑqqq×ØÐ×ÙÐÓÐÓÒÓØÒØÙÒØØÖØÓÒÑÙØÙÐÐ ×ÜØØÑÐÒÓÙÔÐ×ØØÖØØÖÔÙÐ×ÇÒÚÓØÕÙÐÓÒÙÖØÓÒ<br />
ÐÖÐØÓÒ ÒØÖ×ØÖÓ×ÕÙÖ××ØÓÒÐÓÒÙÖØÓÒÓÙÐÙÖÚÓÖ×ÔÓÙÖÐ ×ÖÔØÓÒÐØØÐqqqÕÙÙ×ØÐÔÓ×ØÙÐØÓÒØÒÙÑÔÐØÑÒØÒ×<br />
ÚÐÒÙÒÔÓØÓÒÒ×ÐÒØÖØÓÒÑÒ×ØØÔÔÖÓÜÑØÓÒÐ ÕÙÖ××ØÖØÓÑÑÖ×ÙÐØÒØÐÒÙÒÐÙÓÒÚÖØÙÐÔÖÒÐÓ Ò×Ð×Ö×ÓÒÒÑÒØ×××Ù×ÐÒØÖØÓÒÓÙÐÙÖÒØÖÕÙÖ×ØÒØ <br />
<br />
×ØÐØÑØØÖÙÖÐ×ØÙÖ×ÓÙÔÐÐÙÐ×ÔÓÙÖÐ××ÒÙÐØ×|qq, 1c〉<br />
ÒÓÑÔÖÒØÐ×ÖÐØÓÒ×Ø ÓÒÙØÕÙ <br />
2ÑÒØÓÒÒ <br />
ÒØÙÖØÒØ××ÒÙÐØ×ÓÙÐÙÖÓÒÔÙØÓÒÚÓÖÔÖÓÖÐÜ×ØÒÙÒ Ù§<br />
ØÒØÑ××ÒÙÐÐØØÓÑÔÓ×ÒØÓÖÙÖØÙÒÔÓÖØÒÒÓÑÑ ØØ×ÒÙÐØÓÙÐÙÖÄ××Ý×ØÑ×Ð×qqØqqqÖÓÒ×Ó×ÖÚ×Ò×Ð ÓÑÔÓ×ÒØÒØÖØÓÒØÝÔÒÓÙÚÙÖ×ÙÐØÒØÐÒg0ÄÐÙÓÒ<br />
ÙØÖÔÖØÒÓÑÔÖÒØÓÒÖØÖÓÙÚÐØÙÖ1<br />
×ÕÙÖ×ÄØØÐÙÓÒg0×ÐÜ×ØÒÔÖØÔ×ÓÙÖÖÐ×ÒØ ÔÓÙÖÐÔÓØÓÒÕÙ×ØÒÓÒØÖØÓÒÚÐ×Ø×Ó×ÖÚ×ÓÒÒÑÒØ<br />
ÆÓÙ××ÓÒ×ÑÒØÒÒØÙÒÖØÓÙÖÐÕÙ×ØÓÒÙÖÐÔÓ××ÐÙÐÙÓÒg0<br />
Ò×Ð×ØØ×Ð×qqØqqqÈÖÓÒØÖÓÒÔÙØÑÒÖ××ÒÙÐØ×ÓÙÐÙÖ ØÖÒ×ÓÖÑÖ×ÖÓÒ×ÒÙØÖ×ÓÙÐÙÖÒÖÓÒ×Ö×ÓÙÐÙÖÔÖÓ××Ù×ÒÓÒ Ó×ÖÚÓÙÖ ÆÓØÓÒ×ÕÙÐÒÙÒÐÙÓÒÓÐÓÖÐÓØØØÝÔg1g8ÙÖØÔÓÙÖØ<br />
<br />
′<br />
3 β2<br />
1c〉ÐÓÑÔÓ×ÒØÙÔÓØÒØÐÒØÖØÓÒÓÑÒÒØÓÙÖØ×ØÒ Ø|qqq,<br />
(≈ 1<br />
r ) Vqq(r) ⇐ − 8<br />
3 β21<br />
r<br />
β 2 = αs<br />
2 =ÓÒ×ØÒØÓÙÔÐÓÖØ<br />
, αs<br />
Vqq(r) ⇐ − 4<br />
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9<br />
9<br />
2 λαγ µ <br />
][u(1)c1]<br />
2 λβγ ν <br />
][u(2)c2]<br />
4 λα c2)
Ä×ÓÑÑØÓÒ×ÙÖÐÒÓÙÐÙÖα×ØÑÔÐØ<br />
ÓÒ×ÕÙÒØÐ×ÖÐØÓÒ× <br />
<br />
8<br />
ÖÒØÐÐ× ÓÙÐÙÖ×ÙÜÕÙÖ×ÒÒØÖØÓÒ×ØÖ×ÓØÐÒØØÖÔÐØÓÑÒ×ÓÒ× ÇÒÚÙÙ§ÕÙÐÚÐÙÖÙØÙÖfqq×ØÓÒØÓÒÐÓÒÙÖØÓÒ ×ÓÒØÔÔÐÐ×ÙÜ×ØÓÒ××<br />
ÒØ×ÝÑØÖÕÙ××ÓØÐ×ÜØØÓÑÒ×ÓÒ××ÝÑØÖÕÙ×ÇÒÒØÐ ÐÙÐÔÓÙÖÐÔÖÑÖ×ÔÖÙÒÚÓÖÔØÙÓÒ×ØØÖÜÑÔÐÐ ÐÙÐÔÓÙÖÙÒØØØÝÔÕÙÙ×ÜØØrrÒÔÖØÒØÐÜÔÖ××ÓÒfqqÒ× ÇÒc1 =<br />
ÍÒÓÙÔÓÐÙÜÑØÖ×λαÐÐÅÒÒÚÓÖ ×ÙÐ×λ3Øλ8ÓÒØÙÒÒØÖÒÔÓ×ØÓÒ ÈÖÓÒ×ÕÙÒØ ØÔÔÖØÖÕÙ <br />
ÒÐÒÒÓÒÖÐØÚ×ØÓÒÚÙÕÙÐ×ÒÔÓ×ØfqqÓÖÖ×ÔÓÒÙÒ ÔÓØÒØÐÒØÖØÓÒÖÔÙÐ× Ù×ÓÒÓÖØÙÒÕÙÖ×ÙÖÙÒÒØÕÙÖ×ÚÙÖ ÖÒØ<br />
3<br />
ÔÙØÖÖÑÐ Ð××ÚÙÖ××ÓÒØÖÒØ×ÔÖÝÔÓØ×ÚÐÒÓØØÓÒÐÙÖ ÔÖÐÖÑÑÐÙÖÄÖÑÑ×ØÒÓÖÔÙ×ÕÙ ÓÒ ÇÒÙÒÔÖÓ××Ù×ÙØÝÔu +<br />
−iMqq = [u(3)c †<br />
3 ] <br />
<br />
<br />
1Ô×ØÙÖÓÙÐÙÖÈÖ<br />
<br />
α=1<br />
geØfqq =<br />
ÄÖÐØÓÒÖÔÖ×ÒØÙ××ÐÑÔÐØÙÙ×ÓÒÑe − + µ − →<br />
e− + µ −×ÐÓÒÔÓ×gs =<br />
⎛<br />
c2 = c3 = c4 = ⎝<br />
1<br />
0<br />
0<br />
Ó ⎞<br />
⎠<br />
f {6}<br />
qq = 1<br />
⎡ ⎛ ⎞⎤<br />
⎡ ⎛ ⎞⎤<br />
8 1<br />
1<br />
⎣(100)λα ⎝ 0 ⎠⎦<br />
⎣(100)λα ⎝ 0 ⎠⎦<br />
=<br />
4<br />
α=1 0<br />
0<br />
1<br />
4<br />
f {6} 1<br />
=<br />
qq<br />
4 [λ11 3 λ11 3 + λ11 8 λ11 8<br />
8<br />
(λ 11<br />
α=1<br />
α λ 11<br />
<br />
1 1 1<br />
] = (1)(1) + √3 √3 = +<br />
4<br />
1<br />
α )<br />
d → u + dÓÒØÐÑÒ×Ñ×ØÖÔÖ×ÒØ<br />
<br />
−i gs<br />
[v(2)c †<br />
2]<br />
<br />
2 λαγ µ<br />
<br />
−i gs<br />
2 λβγ ν<br />
<br />
−igµνδ<br />
[u(1)c1]<br />
αβ<br />
q2 <br />
[v(4)c4]
a) b)<br />
p , c p , c<br />
3 3<br />
9<br />
9<br />
9<br />
9<br />
9<br />
9<br />
4 4<br />
3 4<br />
9<br />
9<br />
9<br />
9<br />
ÒØÕÙÖ ÖÑÑ×ÙÔÖÑÖÓÖÖÖÔÖ×ÒØÒØÐÙ×ÓÒÓÖØÕÙÖ<br />
q<br />
p, c p , c<br />
1 1<br />
2 2<br />
1 2<br />
ÐÑÔÐØÙ×ÓÙ×ÐÓÖÑ ÒÖÖÓÙÔÒØÐ×ØÓÖ××ÔÒÙÖ×ÓÑÑÙÔÖÚÒØÓÒÔÙØÖÖ<br />
Mqq = −g 2 1<br />
s<br />
q2[u(3)γµ u(1)][v(2)γµv(4)] 1<br />
4 (c† 3λ α c1)(c †<br />
fqq1<br />
4 (c† 3λαc1)(c †<br />
2λα ×ÓÑÑØÓÒ×ÙÖÐÒαÑÔÐØ 1Ò× ØØÖÐØÓÒ<br />
c4) ËÐÓÒ×Ù×ØØÙgs → ge, αs → αØÐÓÒÔÓ×f = ÖÔÖ×ÒØÐÑÔÐØÙÙ×ÓÒÑe − + µ + → e− + µ + ØÙÖÓÙÐÙÖfqq ÓÙÐÙÖÓÙÒ×ÐÐÐÓØØÓÙÐÙÖØÓÒÒÓÒÒÐ×ÚÐÙÖ×Ù ÇÒÚÙÙ§ÕÙÐ×Ý×ØÑqqÔÙØØÖÒ×ÐÓÒÙÖØÓÒÙ×ÒÙÐØ<br />
ÒÒÐØÓÒÓÖØÙÒÒØÕÙÖØÙÒÕÙÖÑÑ ×ÚÙÖ<br />
.<br />
ÒÙÜÐÙÓÒ×ÚÓÖÙÖ ÌÖÓ×ÖÑÑ×ÙÔÖÑÖÓÖÖÓÒØÖÙÒØÙÜÔÖÓ××Ù×ÒÒÐØÓÒ ÈÓÙÖÐÖÑÑÓÒ<br />
−iMa = [v(2)c †<br />
2 ][−igs<br />
2 λβγ µ ][ε ∗ 4µ aβ∗ 4 ]<br />
<br />
i(/q + m)<br />
q2 − m2 <br />
[−i gs<br />
2 λαγ ν ][ε ∗ 3νaα∗ ÊÔÔÐÐÓÒØβ 2ÚÙØαs/2 ÊÔÔÐÐÙÖ ØÐÒÓØØÓÒÖ /p = γ µ pµ<br />
Ú<br />
g 2 s4παs<br />
2λ α c4) <br />
3 ][u(1)c1]
a) b)<br />
p , ε , c 3 3 3<br />
p , ε , c 4 4 4<br />
α,µ<br />
β,ν<br />
)<br />
99<br />
99<br />
p,c<br />
1 1<br />
)<br />
q<br />
c)<br />
(<br />
9<br />
9<br />
3<br />
9<br />
9<br />
p , c<br />
9)<br />
2 2<br />
α,µ<br />
9<br />
9<br />
9<br />
9<br />
9<br />
9<br />
3<br />
) 4<br />
)<br />
α,µ<br />
9<br />
9<br />
γ,λ<br />
ÖÑÑ×ÙÔÖÑÖÓÖÖÖÔÖ×ÒØÒØÐÒÒÐØÓÒÓÖØ<br />
q<br />
δ,σ<br />
1 2<br />
qq → gg<br />
p3<br />
q2 − m2p 2 1 − 2p1p3 + p2 3 − m2 ÓÒÖÖÓÙÔÒØÐ×ØÙÖ×ÓÙÐÙÖÒÒÜÔÖ××ÓÒ ÐÙÓÒ×Ò×Ñ××<br />
= −2p1p3<br />
Ma = −g 2 1<br />
s v(2)[/ε<br />
p1p3<br />
∗<br />
4 (/p −<br />
1 /p + m)/ε<br />
3 ∗<br />
3 ]u(1)1<br />
8 (aα∗ 3 aβ∗ 4 )(c† 2λβλ α <br />
ÔÓÙÖÐÖÑÑ ÓÒ×ÑÐÖÑ×ÒÒÚÖ×ÒØÐÓÖÖ×ÑØÖ×λÓÒÔÙØÖÖ<br />
βÑÔÐØ<br />
c1) ×ÓÑÑØÓÒ×ÙÖÐ×Ò×α,<br />
Mb = −g 2 1<br />
s v(2)[/ε<br />
p1p4<br />
∗<br />
3 (/p −<br />
1 /p + m)/ε<br />
4 ∗<br />
4 ]u(1)1<br />
8 (aα∗ 3 a β∗<br />
4 )(c †<br />
2λ α λ β ×ÑÔÐØÙ×MaØMbÓÒØÐÙÖ×ÓÖÖ×ÔÓÒÒØ×Ò×ÐÒÒÐØÓÒÑ c1)<br />
e + e− ØÐ×ØÙÖ×ÓÙÐÙÖ<br />
γγ×Ò×Ø geØÓÒÐ××<br />
→ → ÓÒØÐ×Ù×ØØÙØÓÒgs<br />
Å×qp1 −<br />
(<br />
9<br />
9<br />
9<br />
β,ν<br />
9<br />
9<br />
9<br />
9<br />
(<br />
(<br />
9 999<br />
q<br />
β,ν<br />
1 2<br />
)<br />
4
ÐÙÓÒ×Ò×ÖÔÔÓÖØÒØ×ÙØÐÙÖ ÄÖÑÑ ×ÖØÖ×ÔÖÐÔÖ×ÒÙÒÚÖØÜØÖÓ× ÓÒÔÙØÖÖ<br />
−iMc = [v(2)c †<br />
2][−i gs<br />
2 λδ γσ][u(1)c1]<br />
<br />
−i gσλ δ δγ<br />
q 2<br />
ÔÐÙ× Ó<br />
Å×qp3 +<br />
×ÓÑÑØÓÒ×ÙÖÐ×Ò×ÓÙÐÙÖÑÔÐØ ØØÑÔÐØÙMcÒÔ×ÓÖÖ×ÔÓÒÒØÒ×ÐÒÒÐØÓÒe + ØÙÖØÚØØÔÔÖÓÓÒÖÒÐÓÑÔÓÖØÑÒØØÖ×ÓÙÖØ×ØÒ Ä×ÔÔÐØÓÒ×××Ù×××ØÙÒØÒ×ÐÖÐØÓÖÉÔÖ ÊÑÖÕÙ×<br />
ÒÖÚÖ×ÐÐÑØÐÐÖØ×ÝÑÔØÓÑØÕÙØÓÒ×ÔÖÑ×ÔÖÓ ××Ù×ÔÖÑØØÒØØ×ØÖÐ×ÔÖØÓÒ×ØÓÖÕÙ×ÐÙ×ÓÒÒÐ×ØÕÙ ×ØÖÐÙÖ××ÒØÐ×ÔÖÓ××Ù×ÖÒØÖÒ×ÖØ ÐÒØÖØÓÒqq qq ÔÖÓÓÒÐÒÒÐØÓÒe + ÖÓÒÖÓÒÖÒØÖÒ×ÖØÒÖÐ×ÒØÖØÓÒØØ×ÕÙÖÓ ÒÙÑÖØÒ×ÒØÖÙÜÓÒØØÐÓØÔÖ×ÒØØÓÒ×Ò×Ð×ÔØÖ×<br />
ÒÔÖØÙÐÖÐÔÖÓÐÑÙÓÒÒÑÒØ×ÕÙÖ×ÒØÖÒ×ÐÖ ÔÖÒØ×ÙÓÙÖ×<br />
ÑÓÐ×ÔÒÓÑÒÓÐÓÕÙ×ÚÓÖÔØÖØÒ×ÐÙÐØÓÖÉ ÒÓÒÔÖØÙÖØÚØÓÖÙ×ÙÖÖ×ÙÖÒÖ×ÙØÒ×ØÔ×ÓÖ ÄØÙÙÓÑÔÓÖØÑÒØÐÓÒÙ×ØÒÐÒØÖØÓÒqqÓÙqqØ<br />
<br />
{−gsf αβγ [gµν(−p3 + p4)λ + gνλ(−p4 − q)µ + gλµ(q + p3)ν]}[ε µ∗<br />
3 a α∗<br />
3 ][εν∗ 4 aβ∗ 4 ]<br />
p4<br />
q22p3p4 ε ∗ 3p3 = ε ∗ 4p4 = 0ÓÒØÓÒÄÓÖÒØÞ<br />
1<br />
Mc = ig 2 s v(2)[(ε<br />
p3p4<br />
∗ 3ε∗4 )(/p −<br />
4 /p ) − 2(p4ε<br />
3 ∗ 3 )ε∗4 + 2(p3ε ∗ 4 )ε∗3 ]u(1)fαβγa α∗<br />
3 aβ∗ 4 (c† 2λγc1) <br />
e − → γγ<br />
e −ÒÐÔØÓÒ×ØÖÓÒ×ÙØÒÖÐ×ÓÐÐ×ÓÒ×
Ä×ØÓÖ×ÙÐØÓÖÐØÖÓÐ<br />
Ï<br />
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Ò×ÔÖ×ÓÒÔØ×ÓÑØÖÕÙ×ÐÖÐØÚØÒÖÐÀÏÝÐÒØÖÓÙØÙÒ ØÙÖÐÐÙÕÙÑÓÐÓÐÑÒØÐÓÑØÖËÓØÙÒÓÒØÓÒ<br />
ÈÖÓÒØÖ×ÐÙÒØÑ×ÙÖÐÙÚÖÙÒÔÓÒØÐÙØÖ ØÖÓÖÖÔÖÙÒØÙÖS(x)ÕÙÔÒÙÐÙ ÓØ<br />
×Ø××ÒØÔÖÓÐÑÒÓ×ÖÚÒØÐÕÙÚÐÒ ÎÓØÄÓÒÓÒÒØÀÏÝÐÒØÖÓÙÚÖÒØÙÒ×ÓÐÙØÓÒ<br />
µ×Ò××Ù×<br />
ÖØÙÖÐ××ÕÙ ÖØÙÖÕÙÒØÕÙ<br />
ÀÏÝÐÖÖÓÖÖ×ÔÓÒÖS µÙÑÔÑA<br />
ÇÒÑÓÒØÖÕÙ Ò×Ч ÓÒÓÑÑÒÔÖÓÒÒÖÐ×ÒØÓÒÐÁÂÒØÓÖÉ<br />
ÈÖÐ×ÙØÓÒÒÚÖ×ÐÖ×ÓÒÒÑÒØÒ×ÙÔÔÓ×ÒØÐÁÂÚÐÐÓÒÒÙØ Ð×ÐÓ×ÐÑÁÂ=⇒ÕÅÜÛÐÐ=⇒É<br />
ÕÅÜÛÐÐ=⇒ÁÂ<br />
ØØÔÔÖÓÔÙØ×ÒÖÐ×ÖÙØÖ×ØÝÔ×ÒØÖØÓÒ×ÔÖÜ ÁÂËÍ =⇒É<br />
Ô×ÐÓÒØÓÒÓÒ<br />
ØÄÇÄÐÐ×××ØÒÙÒØÔÖÐÔÖÑØÖÖØÖ×ÒØÐÒÑÒØ ÇÒÓÒ×ÖÙÜØÝÔ××ÝÑØÖÙÐÙÒØÄÇÄØÐÙØÖ ÓÙÐÙÖ)<br />
f(x)ÔÒÒØÐÒÖÓØxËÐÓÑØÖÙÒÐÐÙÒÓÖÑ∀x<br />
f(x + dx) = f(x) + ∂ µ f(x)dxµ<br />
f(x + dx) = f(x) + ∂ µ f(x)dxµ[1 + S ν <br />
dxν]<br />
= f(x) + (∂ µ + S µ )f(x)dxµ + 0(dx 2 )<br />
p µ → p µ − eA µ ⇐⇒ i(∂ µ + ieA µ <br />
) ÓÒÐÀÏÝÐÙÖØÓÒØÓÒÒÒÔÝ×ÕÙÕÙÒØÕÙ×S µ → ieA µ
ËÝÑÄÓÐ ËÝÑÐÓÐ =ÓÒ×ØÒØ ψ(x)<br />
ψ(x) → ψ ′ (x)exp iα(x) ×ÖÓÙÔ×ÓÒÔÖÐÒÚÖÒ×ÓÙ×ÐÖÓÙÔU(1)×Ô×× ÇÒ×ØÕÙÐ×ÖÔØÓÒÔÝ×ÕÙÙÒ×Ý×ØÑÐÖÒ×ØÔ×ØÔÖÐ ÒÑÒØÐÔ×ÐÓÐ×Ù×ÔØÓÐÓÕÙÒÐÒÐØÓÖ<br />
ψ(x)Óα = α(x)<br />
A µ → A µ − ∂ µ Ð××ÒÚÖÒØÐ×ÖÔØÓÒÙÔÒÓÑÒÓÒ×Öf(x)×ØÙÒÓÒØÓÒ ÖØÖÖ×ÓÓÖÓÒÒ×ÄÁÂÒÑ×ØÑÓÒØÖÒÓ×ÖÚÒØÕÙÐ× <br />
ÕÙØÓÒ×ÙÑÓÙÚÑÒØ ÑÔ×EØB×ÓÒØÒ×Ò×Ð×ØØØÖÒ×ÓÖÑØÓÒÕÙ×ÖØ×ÙÖÐ× ÒÒÓØØÓÒÓÚÖÒØÐ×ÖÒÙÖ×<br />
f(x)<br />
Ø µν ν µ µ ν<br />
= ∂ A − ∂ A<br />
F µν = 1<br />
2 εµναβαβ ×ÓÒØÒ×Ò×Ð×ÐØÖÒ×ÓÖÑØÓÒ <br />
Ä×ÕÙØÓÒ×ÅÜÛÐÐ×ÓÒØÖØ××ÙÖÐ×µνØF µν<br />
<br />
Ú(E)<br />
Ä×Ù×ØØÙØÓÒ<br />
ÖÓØ(B)<br />
Ò×ÓÒÒ<br />
<br />
ÖÓØ(E)<br />
ËÐÓÒÓÔØÐÙÄÓÖÒØÞ<br />
Ú(B)<br />
ÇÒÔÓ×4π c = 1. <br />
→ ψ ′ (x)exp iα Óα ψ(x)<br />
ÁÒÚÖÒÙÒØÓÖÉ ËA µ×ØÐÑÔÑÓÒ×ØÕÙÐØÖÒ×ÓÖÑØÓÒÙ<br />
<br />
ν<br />
→ ∂µµν<br />
= j<br />
→ ∂µF µν <br />
= 0<br />
✷A µ − ∂ µ (∂νA ν ) = j µ <br />
∂νA ν <br />
= 0
ÓÒÓØÒØÙÒÓÖÑÐÃÐÒÓÖÓÒÔÓÙÖÙÒÔÖØÙÐÑ××ÒÙÐÐ<br />
✷A µ = 0 <br />
ÓÒÓÖÖ×ÔÓÒÒØ×ÖØÕÈÖÓ<br />
0ÄÕÙØÓÒ<br />
(✷ + M 2 )A µ − ∂ µ (∂νA ν ) = j µ <br />
µ ÇÒÔÙØ×Ù×ÔØÖÕÙÐÓÒ×ÖÚØÓÒÙÓÙÖÒØÑØÒÔÖØÙÐÖÐÓÒ×Ö <br />
= 0 ÚØÓÒÐÖj 0ÒÐ×ÒÙÒ×ÓÙÖ×ÓØÙÒÓÒÓÙÙÒÙØÖ<br />
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Ü×ØÙÒÔVÒØÖx1Øx2Ð×Ý×ØÑÒÙÒÒÖqVÙØÓØÐ<br />
ÐÓÒÐÙ×ÓÒÕÙÐÖqÒÔÙØÔ×ØÖÖÐÐÒÔÙØØÖÕÙÓÒ×ÖÚ ÄÔÖÒÔÐÓÒ×ÖÚØÓÒÐÒÖØÐÜ×ØÒÔÓØÒØÐ×ÑÒÒØ<br />
E<br />
ÉÔÙØÓÒÓÒØÓÙÖÒÖÖ×ÓÒÒÑÒØ ÈÓÙÖÑØØÖÒÚÒÐØÐÁÂÔÐÓÒ×ÒÓÙ×Ò×ÐÔÔÖÓÜÑØÓÒ<br />
+W<br />
ÒÓÒÖÐØÚ×ØÄÕÙØÓÒËÖÒÖÒÔÖ×ÒÙÒÑÔÑ×Ø<br />
ÓÒ×ÖÓÒ×ÐØÖÒ×ÓÖÑØÓÒÙ<br />
Ó:<br />
ÄÖÐØÓÒ×ØÒÚÖÒØ×ÓÙ×ÐØÖÒ×ÓÖÑØÓÒÙA µ ⇒ A µ −<br />
∂ µ ÕÙÒ×ØÔ×ÒÚÖÒØÙÓÒÐÒÚÖÒÙÑ×ØÖÐÙØ ÕÙÐÑ××ÙÔÓØÓÒ×ØÒÙÐÐÚÓÖÔØÖ<br />
f(x)ÁÐÒÒ×ÖØÔ×Ò××ÐÔÓØÓÒÚØÙÒÑ××M =<br />
Ñ ÓÙØÓÒ×ÕÙÐ×ÕÙØÓÒ×ØÓÒØÒÒÒØÐÓÒ×ÖÚØÓÒÙÓÙÖÒØ<br />
∂µj<br />
+qV −W qV<br />
<br />
1<br />
2m (−i∇ + qA)2 <br />
+ qV ψ(x, t) = i ∂ψ<br />
∂t (x, t) <br />
A → A ′ <br />
= A + ∇f<br />
V → V ′ = V − ∂f<br />
<br />
∂t<br />
f = f(x, t)
ËÐÓÒÒ×Ö Ò× ÐÕÙØÓÒËÖÒÖÔÓÙÖ×ÓÐÙØÓÒÐ ÓÒØÓÒψ ′ØÐÐÕÙ | ψ ′ <br />
(x, t) |=| ψ(x, t) | , ÖÓÒÚÙØÕÙÐÒ×ØÔÖÓÐØ×ÓØÓÒ×ÖÚÓÒψ ′ØψÒ ØÖÒ×ÓÖÑØÓÒÙÓÑÔÐØ×ØÓÒ ÖÒØÕÙÔÖÐÙÖÔ×ÇÒÚÖÜÖÕÙØØÔ×ÚÙØexp{iqf}Ä<br />
A → A ′ = A + ∇f<br />
V → V ′ = V − ∂f <br />
∂t<br />
ψ → ψ ′ ÓÖÑÓÚÖÒØÐØÖÒ×ÓÖÑØÓÒ t)ÓÒÐØÖÒ×ÓÖÑØÓÒÙ×ØÐÓÐËÓÙ× ×ÖØ = exp{iqf}ψ ÊÑÖÕÙÞÕÙf = f(x,<br />
A µ → A ′µ = A µ − ∂ µ f<br />
ψ → ψ ′ <br />
= exp{iqf}ψ<br />
ÄÜØÒ×ÓÒÙØÖØÑÒØÖÐØÚ×Ø×ÖÜÑÒÙ§ Ò×ÐÔÖÖÔÔÖÒØÐÕÙØÓÒËÖÒÖ×ØÔÖ×ÓÑÑ ØÓÒÐØÓÖÐÑ ÄÒÚÖÒÙÓÑÑÔÖÓÖÑÑÓÒ×ØÖÙ<br />
ØÓÒ×ØÒÚÖÒØ×ÓÙ×ÐØÖÒ×ÓÖÑØÓÒÙ ÔÓÒØÔÖØÆÓÙ×ÚÓÒ×ÚÖÕÙÐÝÒÑÕÙÓÒØÒÙÒ×ØØÕÙ ÄÓÒØÓÒÓÒ×Ø<br />
=Ô×ÐÓÐ Ù§ÓÒÒÚÖ×ÖÖ×ÓÒÒÑÒØ ÓÒÑÒÖÕÙÐØÓÖ×ÓØÒÚÖÒØ×ÓÙ×ÐØÖÒ×ÓÖÑØÓÒÙ <br />
ÑÒÓÙÐÖÓÒØ ÓÒÒÙÖÕÙÐ×Ý×ØÑÖØ×ØÓÖÑÒØÒÒØÖØÓÒÐ×Ý×ØÑ<br />
VÄ×ÕÙØÓÒ×ÔÖÓÔØÓÒÚÒØÖØÓÒ<br />
∼<br />
ÖÞÐ×ÐÜÔÖÒÓÙÒÚÙÒÖÒÙÜØÖÓÙ×ÚÓÖÙÖ ÇÒÓÒÓØÒØÙØÚÑÒØÕÙÙÒÒÑÒØÐÔ×ÐÓÐÐÓÒØÓÒ ØÒØØÔÖÙÒÑÔA,<br />
<br />
ÓÒψ →<br />
ÑÓÔÖÐÒÑÒØÐÔ×ÐÓÐÓÒØÓÒÙÐÙ<br />
ψ(x, t) → ψ ′ (x, t) = exp{iqf(x, t)}ψ(x, t) <br />
ψe iα(x)×ØÒÓÑÔØÐÚÐ×ÖÔØÓÒÙÒ×Ý×ØÑÐÖÓÒ×
Ψ1<br />
Ψ<br />
ËÑÐÜÔÖÒÓÙÒ<br />
Ψ2<br />
ÄÓÒØÓÒψ×ÙÖÐÖÒ×ØÐ×ÙÔÖÔÓ×ØÓÒÓÖÒØ×ÙÜÓÒØÖÙØÓÒ×<br />
ψ1Øψ2ÄÒØÒ×ØÐØ×ÙÖÐÖÒ×ØÔÖÓÔÓÖØÓÒÒÐÐ| ψ | 2<br />
| ψ | 2 =| ψ1 + ψ2 | 2 = | ψ1 | 2 + | ψ2 | 2 +2Reψ ∗ 1ψ2 = | ψ1 | 2 + | ψ2 | 2 ÓÒ×ØÒØ×Ò×ÐØÖÖÐÖ×ÙÐØØÔÝ×ÕÙÈÖÓÒØÖÐ×ØÜÐÙÒØÖÓÙÖ<br />
+2 | ψ1 || ψ2 | cosδ<br />
Ò××Ý×ØÑÐÖÙÒÔ×ÐÓÐe iα(x,t)×Ò×ØÖÐÓÖÒÒØÖ<br />
ψ1Øψ2ÐÒÚÖÒÙÐÓÐ ÐÖÁÐÙØÒ××ÖÑÒØÒØÖÓÙÖÙÒÑÔÕÙ×××ÙÖÐÔÖØÙÐ Ò×ØÔ×ÙÒ×ÝÑØÖÙ×Ý×ØÑ<br />
ÙØÖÑÒØØÒØÖÑÐÁÂÐÓÐÐ×ÚÖÑÔÓ××Ð×ØÒÙÖÐØ<br />
ÑØÑØÕÙ×Ä×ÝÑØÖÐÓÐ×ØÐÐÙÖ×ÒØÖ××ÒØÒÐÐÑÑ ÑÒÖÐ×ÙÒ×ÝÑØÖÐÓÐÕÙÒÓÙ×ÔÖÑØØÖÒÖÐ×ÓÙØÐ× ÚÒØÓÒ×ÖÖÐ×ØÙØÓÒÙÒ×ÝÑØÖÙÐÓÐÓÒÚÜ<br />
ÌÖÒ×ÓÖÑØÓÒÙÐÓÐ<br />
ÙÒÑÔÓÖ×ÐÙÙÒÒÑÒØÔ×ψ<br />
ÇÒÒØÖÓÙØÓÑÑÙÒÑÒØÐÖÐÔÖØÙÐqÒ×ÐØÙÖÔ×<br />
qθÓ<br />
=ÓÒ×ØÒØ <br />
α ÒÔÓ×ÒØα =<br />
ψ → ψ ′ = e iqθ ØØØÖÒ×ÓÖÑØÓÒÙ×ØÔÔÐÐÙÜÕÙØÓÒ×ÖÐÖØ Ú =ÓÒ×ØÒØ <br />
ψ θ<br />
Óδ×ØÐÖÒÔ×ÒØÖψ1Øψ2ÁÐ×ØÐÖÕÙÓÒÔÙØÑÙÐØÔÐÖ ×ÑÙÐØÒÑÒØψ1Øψ2ÔÖÙÒØÙÖÔ×ÓÑÑÙÒe iαÓα<br />
ÑÔÒØÖØÓÒ<br />
∈Ê=<br />
ÒÚÖÒÙÐÓÐ⇐⇒<br />
ËÓØÐØÖÒ×ÓÖÑØÓÒÙÐÓÐ<br />
ψ → ψ ′ = e iα Ú ψ<br />
ÃÐÒÓÖÓÒÐÖ
ÓÒ×ÖÓÒ×ÓÒÒÖÐÐØÖÒ×ÓÖÑØÓÒÓÒØÒÙÔÖÑØÖ<br />
Uθ ≡ e iq1θ Óq<br />
∈ÖÓÙÔU(1)<br />
Uθ<br />
Uθ : ψ → ψ ′ ÇÒÙ××ÐØÖÒ×ÓÖÑØÓÒÒÒØ×ÑÐ = Uθψ<br />
=Ö<br />
θ =ÔÖÑØÖ<br />
1 =ÒÖØÙÖ<br />
<br />
ψ → (1 + iqθ)ψ ÄÒÚÖÒÐÑÐØÓÒÒÙ×Ý×ØÑ〈ψ|H|ψ〉 = 〈ψ ′ |H|ψ ′ ÑÙØØÚØqØH 〉ÑÔÐÕÙÐÓÑ<br />
ÑÓÙÚÑÒØ ÕÙ×ØÕÙÚÐÒØÖÕÙÐÖq×ØÓÒ×ÖÚq×ØÙÒÓÒ×ØÒØÙ <br />
[H, q] = 0,<br />
ÈÐÙ×ÓÑÑÙÒÑÒØÓÒÜÔÐÓØÐÁÂÐÓÐÙÄÖÒÒ<br />
L(x, t) ≡ L(x) = L(ψ(x), ∂ µ ψ(x)) <br />
ÇÒÖÕÙÖØÕÙL(x, t)×ÓØÒÚÖÒØ×ÓÙ×ÐØÖÒ×ÓÖÑØÓÒψ →<br />
∂(∂ µ ψ) δ(∂µ <br />
ψ) Ñ×: δ(∂ µ ψ) = iqθ∂µψ Ö: ∂(∂ µ ψ) iqθ∂µψ ∂ψÔÖ×ÓÒÜÔÖ××ÓÒØÖÐÕÙÐÖÄÖÒ <br />
ÊÑÔÐÓÒ×∂L<br />
<br />
ÖÝÓÒÕÙÝÔÖÖÈÓÙÖËÍÆÓÒÙÖÙÒ×ØÙØÓÒ×ÑÐÐÔÖÜËÍ qÔÙØØÖÙÒÖÑÓÙØÓÙØÙØÖÒÓÑÖÕÙÒØÕÙØÓÒ×ÖÚÖÒÓÑÖ <br />
ÚÓÖ§ ÓÙÐÙÖ<br />
<br />
<br />
ψ + δψ<br />
0 = δL = ∂L ∂L<br />
δψ +<br />
∂ψ<br />
∂µθ<br />
0 = ∂L ∂L<br />
iqθψ +<br />
∂ψ<br />
<br />
∂<br />
0 = iθ<br />
∂x µ<br />
∂L<br />
∂(∂ µ ∂L<br />
qψ +<br />
ψ) ∂(∂ µ ψ) q∂µψ<br />
0 = iθ ∂<br />
∂x µ<br />
<br />
∂L<br />
∂(∂ µ ψ) qψ<br />
= 0 Ó:<br />
ψ + iqθψ =
ÇÒÒØÐÓÙÖÒØ××ÓÐØÖÒ×ÓÖÑØÓÒÙ<br />
j µ = iq ∂L<br />
∂(∂µψ) ψ <br />
ÄÖÐØÓÒÜÔÖÑÕÙÐÚÖÒÑÒ×ÓÒÒÐÐ<br />
∂µj µ <br />
= 0 ×ØÖÕÙÐÓÙÖÒØj µ×ØÓÒ×ÖÚØ×Ø××ÓÐ×ÝÑØÖU(1). ÇÒÙÒÔÔÐØÓÒÙØÓÖÑÆÓØÖ<br />
∃ÙÒÓÙÖÒØÓÒ×ÖÚ ÄÄÖÒÒÙÒÔÖØÙÐÖÐÖL=ψ(iγ µ ×ØÒÚÖÒØ×ÓÙ×ÐØÖÒ×ÓÖÑØÓÒψ→e iqθ ØÓÒÙÓÙÖÒØ <br />
ψÔÔÐÕÙÓÒ×Ò××ÐÒ<br />
j µ = iq ∂L<br />
∂(∂µψ) ψ = iq(ψiγµ )ψ = −qψγ µ <br />
ÇÒÚÑÒØÒÒØÖÐ×ÖÐÔÖÓÖÑÑÒÒÓÒÙ§ ÌÖÒ×ÓÖÑØÓÒÙÐÓÐ<br />
ψ<br />
ÄØÖÒ×ÓÖÑØÓÒ<br />
ÇÒÓØÒØÐÓÙÖÒØÖÓÒ×ÖÚ××Óq<br />
ÙÐÓÐ×Øψ(x) ′ ÄÖÒØψ×ØØÔÖÐÒÑÒØÔ×<br />
ÇÒÚÓØÕÙ∂µψ ′ ÖÚDµØÐÐÕÙ ÓÙÃÐÒÓÖÓÒÐÖ×ÈÓÙÖÖØÐÖØØÓÑÔØÐØÐÙØØÖÓÙÚÖÙÒÓÖÑ<br />
(Dµψ) ′ → e iqθ(x) <br />
<br />
<br />
Dµψ<br />
∃ÙÒ×ÝÑØÖÓÒØÒÙÐÓÐ<br />
⇕<br />
∂µ − m)ψÔÖÜÑÔÐ<br />
→ e iα(x) ψ(x) = e iqθ(x) ψ(x) <br />
∂µψ ′ (x) → e iqθ(x)<br />
⎡<br />
⎤<br />
⎣∂µψ(x) + iqψ(x)∂µθ(x) ⎦<br />
<br />
E<br />
= eiqθ(x) ∂µψÕÙ×ØÒÓÑÔØÐÚÐ×ÕÙØÓÒ×Ö<br />
ÇÒÐÓØÒØÒÒ××ÒØÐÖÚÓÚÖÒØ<br />
Dµ = ∂µ + iqAµ
ÓAµ×ØÙÒÑÔÙØÐÕÙ<br />
Aµ(x) → A ′ <br />
µ(x) = Aµ(x) − ∂µθ(x) ØÚÑÒØDµ → (Dµψ) ′ = D ′ µ ψ′<br />
= (∂µ + iqA ′ µ )ψ′ = (∂µ + iqAµ − iq∂µθ)e iqθ ψ<br />
= ∂µ(e iqθ ψ) + iqAµe iqθ ψ − iqe iqθ ∂µθψ<br />
= e iqθ ∂µψ + iq∂µθe iqθ ψ + iqAµe iqθ ψ − iqe iqθ ∂µθψ<br />
= e iqθ (∂µ + iqAµ)ψ<br />
= e iqθ ÓÑÑ×Ö<br />
ÓÒÓØÒØÐÓÖÑÚÒØÖØÓÒÑ ÒÔÔÐÕÙÒØÐÒØÓÒÙÄÖÒÒ Dµψ<br />
L = ψ(iγ µ <br />
(∂µ + iqAµ) − m)ψ<br />
= ψ(iγ µ ∂µ − m)ψ − qψγ µ ÄÔÖØÒØÖØÓÒ×Ø<br />
ψAµ<br />
LÒØ= −qψγ µ ψAµ = j µ <br />
Aµ Ój µ×ØÐÓÙÖÒØÕÙÚÒØÐ×ÝÑØÖU(1)ÙÄÖÒÒ<br />
•ÒÖ×ÙÑÑÒÖÐÒÚÖÒÙÐÓÐÑÔÓ×ÐÑÓØÓÒ ÐÀÑÐØÓÒÒØÙÄÖÒÒÐÖ×ÔÖÐÒØÖÓÙØÓÒÙÒÑÔÙ<br />
A µÐÔÙØ×ÖÔÖÐ×Ù×ØØÙØÓÒ ∂ µ → ∂ µ + iqA µ ≡ D µ <br />
•ËÓÒÓÙØÒ×ÐØÖÑÕÙÖØÐÔÖÓÔØÓÒ×ÔÓØÓÒ×ÐÖ×<br />
−1 ×Ò×Ñ×× ÄÔÔÐØÓÒÐÕÙØÓÒÙÐÖÄÖÒÑÒÐÕÙØÓÒÓÒÙÒÑÔ<br />
4<br />
✷A µ − ∂ µ (∂νA ν ) = j µ <br />
L = ψ(iγ µ ∂µ − m)ψ <br />
ÓD µ×ØÐÖÚÓÚÖÒØÆÐÁÂÑÔÐÕÙÐÓÙÔÐÑÒÑÐ µνÓÒÓØÒØÐÄÖÒÒØÓØÐ<br />
FµνF<br />
L = ψ(iγ µ ∂µ − m)ψ + j µ Aµ − 1<br />
4 FµνF µν
ÊÑÖÕÙÞÕÙÒ×Ð×ÙÒÑÔÑ××ÓÒÙÖØÙÒØÖÑ✷ + m2 )A µ ×ØÒ×ÓÑÔÐØ ÕÙÒ×ØÔ×ÒÚÖÒØÙ<br />
×ÓÒÔÐÙ×ÙÒÑÔÙÒÔÖØÒØÙÄÖÒÒÔÔÖÓÔÖ ÍÒÖ×ÓÒÒÑÒØ×ÑÐÖ×ÔÔÐÕÙÒ×Ð×ÖÔØÓÒÙ×Ý×ØÑÙÒÓ Ä×ÖÔØÓÒÙ×Ý×ØÑÙÒÖÑÓÒÔÐÙ×ÙÒÑÔÙÒÒØÖØÓÒ<br />
ÇÒØÙ×ÔØÖØÖÒ×ÓÖÑØÓÒ×ÐÓÐ×ØÝÔËÍÆ ÒÖÐ×ØÓÒ×ØÖÒ×ÓÖÑØÓÒ×ÙÐÓÐ×<br />
Ð×ÒÒÖÙÒ×ÔÆÑÒ×ÓÒ×ÊÔÔÐÓÒ×ÒÙÜÜÑÔÐ×<br />
−1ÔÖÑØÖ×Ò×ÐÖÔÖ×ÒØØÓÒÓÒÑÒØÐ ÓËÍÆ×ØÙÒÖÓÙÔÆ2 <br />
p<br />
=<br />
n ØÖÒ×ÓÖÑØÓÒψ ′ = UψÚU = exp(iθi ÈÙÐ τi/2)ÓÐ×τi×ÓÒØÐ×ÑØÖ×<br />
⎠×ÓÒØÐ×ÔÖÑØÖ×ØÖÒ×ÓÖÑØÓÒ<br />
⎛ ⎞<br />
θ1<br />
θ ≡ ⎝ θ2<br />
θ3 ËU×ØÙÒ×ÝÑØÖÙ×Ý×ØÑÐÓÖ×Ð×Ó×ÔÒI ≡ τ 2×ØÓÒ×ÖÚI 2ØI3×ÓÒØ ÓÒ×ÖÚ×<br />
⎛ ⎞<br />
⎛ ⎞<br />
ÜÑÔÐ: ËÍ(2)×Ó×ÔÒ: ψ<br />
ÜÑÔÐ Ø : ËÍ(3)×ÚÙÖ: ⎠ ËÍ(3)ÓÙÐÙÖ: ψ ØÖÒ×ÓÖÑØÓÒψ ′ = UψÚU exp(iαiλi/2)ÓÐ×λi×ÓÒØÐ×ÑØÖ× •ÓÒ×ÖÓÒ×Ð×ÙÒ×ÝÑØÖËÍ ÒÖÐ×ØÓÒ×ØÖÒ×ÓÖÑØÓÒ×ÙÐÓÐ× ØÓÖ×ÒØÅÐÐ× <br />
ÐÐÅÒÒØα1, α2,<br />
<br />
×ÖØ ÑØØÓÒ×ÕÙÐ×ÔÖÑØÖ×αÔÒÒØÐÔÓ×ØÓÒxÒ×Ð×ÔØÑÔ×<br />
gθ(x)ÐØÖÒ×ÓÖÑØÓÒ<br />
<br />
ØÒØÖÓÙ×ÓÒ×ÙÒÖgØÐÐÕÙα=α(x) =<br />
ψ<br />
ψ =<br />
ψ1<br />
α8×ÓÒØÐ×ÔÖÑØÖ×ÐØÖÒ×ÓÖÑØÓÒ<br />
u<br />
r<br />
ψ ≡ ⎝ d<br />
≡ ⎝ g ⎠<br />
s<br />
b<br />
=<br />
...,<br />
ψ2<br />
<br />
→ ψ ′ <br />
= exp iα τ<br />
<br />
<br />
′ ψ 1<br />
ψ = exp(iα · T)ψ =<br />
2<br />
ψ ′ 2<br />
′ <br />
= exp(igθ · T)ψ
ÐØÓÖØÖÒÚÖÒØ×ÓÙ× ÁÒØÖÓÙ×ÓÒ×ÐÖÚÓÚÖÒØÖ<br />
§ ÓÒÑÔÓ×<br />
<br />
ËÒ×ÔÖÒØÙÖ×ÓÒÒÑÒØÚÐÓÔÔÔÓÙÖÐ×ÝÑØÖU(1)<br />
Dµ Ð×W µ×ÓÒØ ÑÔ×Ù×Ò×Ñ×× <br />
ÙÒÓÒÒÖÐÐ×ÒÖØÙÖ×ËÍÆÓÆÒÓÑÑÙØÒØÔ×Ò ÄØÙÖÑÙÐØÔÐØg×ØÙØÕÙÐÖÓÙÔËÍ ×ØÒÓÒÐÒ<br />
3 ) ËÐÓÒÑÒÕÙDµψ →<br />
ÓÒ×ÕÙÒÐÒØÖÓÙØÓÒÐÖÚÓÚÖÒØD µÒ×ÐÕÙØÓÒÖ<br />
ÓÙÒ×ÐÄÖÒÒL = ÚÔÖÓÙÖ×ØÖÑ×Ògψγ µ µÕÙÖÔÖ×ÒØÒØÐÒØÖØÓÒ×ÑÔ×<br />
Tψ)·W<br />
W µØÙÓÙÖÒØj<br />
ÉØÐÖÐÜÔÖ××ÓÒ×ØÖÑ×ÙØÓÒØÖØÓÒ ÒØÖØÓÒÙØÝÔWWWØWWWWÚÓÖÐÙÖ ÖÇÒØÖÓÙÚÔÐÙ××ØÖÑ×ÙØÓ<br />
•ÇÒÔÙØØÖØÒØÔÔÐÕÙÖ×Ò×ÙØÖÐÔÖÓÙÖÐÒØÖØÓÒÐ Ò×ÒØÐ××ÓØÓÒ{W1 W2 ÔÖÓÐÑÙØÕÙÐØÖÑÐÑ××Ò×ÐÄÖÒÒ∼m 2 •ÓÒ×ÖÓÒ×Ð×Ð×ÝÑØÖËÍ ÙÐØÖÙÖÑÒØÓÑÑÒØÖÑÖÐ ÐÓÖÖ Î×ØÒÓÑÔØÐÚÐÒÚÖÒÙÇÒÚÖÖ<br />
ÐÖÓÙÐÙÖ ÊÔÔÐÓÒ×ÕÙÐÓÒØÓÒÓÒψÙÒÕÙÖÓÑÔÓÖØÙÒÔÖØÔÒÒØ ÓÙÐÙÖ<br />
<br />
ÚÓÖÔÖÜÖ§<br />
qψγ µ ψAµÐÒØÖØÓÒÑ<br />
µ<br />
= ∂µ + igT · W µ Ó (x),<br />
W µ ≡ (W µ<br />
1 , W µ<br />
2 , W µ θ)DµψÓÒØÖÓÙÚÐÒÐÓÙ<br />
exp(igT ·<br />
W µ → (W µ (x) − ∂ µ θ(x) − gθ(x) · W µ <br />
(x)<br />
(iγµD µ − m)ψ = 0<br />
[−i(Dµψ)γ µ − mψ]ψ<br />
= ψγ µ TψÚÙÒÓÙÔÐÙÒÕÙgÇÒÐÒÐÓÙ<br />
W3} ⇒ {W ± Z}ÌÓÙØÓ×ÓÒ×ÙÖØÙÒ<br />
,<br />
W µ WµÑ<br />
⎛<br />
|ÓÙÐÙÖ〉 = ⎝<br />
r<br />
g<br />
b<br />
⎞<br />
⎛<br />
⎠ ⇒ ⎝<br />
ψ1<br />
ψ2<br />
ψ3<br />
⎞<br />
⎠
a) b) c)<br />
W W W<br />
ÖÑÑ×ÒØÖØÓÒ×ÚÐÑÔWÒØÖØÓÒÚÙÒ<br />
W W<br />
ÓÙÖÒØÖÑÓÒØ ÙØÓÒØÖØÓÒ× W W W<br />
ÒØÖØÓÒ×ÓÒØÐÓÖÑ Ð×ÐÙÓÒ×ÕÙÒØÖ××ÒØÚÐ×Ö×ÓÙÐÙÖ×ÕÙÖ×Ä×ØÖÑ×<br />
gsψγ µλα<br />
2 ψAα = gsj α ÔÕÙ×ÙÒÖÓÙÔÒÓÒÐÒ×ÓÒØÐ×ÒØÖØÓÒ×ØÐÙÓÒק ÔÐÙ×ÓÒ×ØÖÑ×ÒØÖØÓÒÙÑÔÙÚÐÙÑÑØÝ ÒÖ×ÙÑ<br />
Aα<br />
ÒØÖ××ÒØÚÐ×ÖÑÓÒ×ØÒØÖÙÜ×Æ ÄÚÖ×ÓÒÐÓÐÐÑÑ×ÝÑØÖÙËÍÆÖÒØØÕÙÐ× ÑÔ×ÙÓÒØÐ×ÕÙÒØ×ÓÒØ×Ó×ÓÒ××Ò×Ñ×××Ó×ÓÒ× Ö××ÓÒØÓÒ×ÖÚ×Ä×ÓÙÖÒØ×ÑÓÙÐÙÖ ×Ø×ÓÒØÐÕÙ<br />
Ò×ÐÝÔÓØ×ÙÒ×ÝÑØÖÙÐÓÐËÍÆÓÒÓØÒØÆ2<br />
ØÓÒÓÒØÒÙØ∂ µ jα ØÖÒÔÖÑÔ×ÐÖÓ×ÓÒ×À×Ø<br />
α×Ø××ÓÙÜÖ×ÒÕÙ×ØÓÒ<br />
ÙÐØÓÖØÔÖÓÒ×ÕÙÒØÐÚÐØÐÔÖÓÙÖ ×ØÐÔÓ××ÐÚÓÖ×ÑÔ×ÙÑ××××Ò×ØÖÙÖÐÒÚÖÒ Ó×ÓÒ×ÓÐ×ØÓÒ<br />
µ ≡ 0<br />
ÒØÓÒÒØÖÓÙØ×ÑÔ×ÔÓÙÖÓÒÒØÖ×ÔÓÒØ×Ð×ÔØÑÔ× ××ØÒ×ÖØÖÖÑÒØÖÒ×ÐÚØÙÖÐÓÒÒÜÓÒÓØÚÓÖÙÒ ÓÐ×ÓÒØÓÒ×ÓÒÓÒØ×Ô××ÖÒØ××ÔÓÒØ×ÔÓÙÚÒØ×ØÖÓÙÚÖ ÍÒÖ×ÓÒÒÑÒØÙÖ×ØÕÙÑÒÔÖÑÓÖÙÒÖÔÓÒ×ÒØÚ<br />
ÔÓÖØÒÒÓÙÒÑÔÙÑ××ÒÙÐÐ ÊÔÔÐgs = √ =ÓÒ×ØÒØÓÙÔÐÓÖØ<br />
4παs, αs<br />
ÄÁÂÒÓÙ×ÓÒÙØÒØÖÓÙÖÑÔ×Ù×Ò×Ñ××A α , α = 1, ...8
×ØÙÒØÖÒÐÜØØÓÒÙÑÐÙÕÙ×ÓÔÔÓ×ÙÒÑÒØÄ Ñ××ØÚÐÓÖ×ÙÔ××Ò×ÙÒÑÐÙÓ×ÓÙÖÒØ×ÔÙÚÒØ×ØÐÖ ×ÐÑØ×ØÐÙÙ×ÙÔÖÓÒÙØÙÖÕÙÜÔÙÐ×ÐÑÔB×ÓÒÒØÖÙÖ ÌÓÙØÓ×ÓÒ×ÜÑÔÐ×ÒÔÝ×ÕÙÙ×ÓÐÓÐÔÓØÓÒÔÖÒÙÒ<br />
ÑÔÑ×× ÄÒØÖÔÖØØÓÒØØ×ØÐ×ÙÚÒØÒ×ÐÙÄÓÖÒØÞÓÒ ÓÒMÔÓØÓÒ→ ∞ ÓÒÓØÒØ✷A =<br />
(✷ + M 2 ËÙÔÔÓ×ÓÒ×ÕÙÓÒÖÖÔÒØÖÖÑÐÙÔÖÙÒÑÔBÄÖÔÓÒ× <br />
)A = 0<br />
Ä×ÓÐÙØÓÒÐÕÙØÓÒ×ØÙØÝÔ<br />
ÙÑÐÙ×ÜÔÖÑÔÖ∇ × ËÐÓÒÔÖÒÐÖÓØØÓÒÒÐØØÜÔÖ××ÓÒÓÒÓØÒØÚ∇ ×<br />
ÞÓ×ÓÒ×ÓÒÒÒØÐÙÙÒÓÙÖÒØÑÖÓ×ÓÔÕÙÐÐ×ÔÙÚÒØØÖØÓÙØ× Ò××ÓÙ××ØÑÔÖØÙÖÖØÕÙTcÄ×ÔÖ×ÓÓÔÖÓÒ×ØØÙÒØÙÒ ÍÒÜÑÔÐØØ×ØÙØÓÒ×ØÐÐÙÒÓÖÔ××ÙÔÖÓÒÙØÙÖÑÒØÒÙ<br />
Ò×ØØÜÔÖ××ÓÒQ = 2ÒÙÒØe 2Óns×ØÐÒÓÑÖe −×ÙÔÖÓÒÙØÙÖÔÖÙÒØÚÓÐÙÑÇÒÓØÒØ ÐÕÙØÓÒÄÓÒÓÒÒÔÖÒÒØÐÖÓØØÓÒÒÐ<br />
ÄÐÓÒÙÙÖÔÒØÖØÓÒ×Ø <br />
nsÑÒÙÖÙ×ÕÙÑÒØØÒ<br />
0)ÚÓÖÙÖ<br />
≃ ÈÓÙÖns ÓÖÖ×ÔÓÒÙÒÑ××M = ×ØÐÚÙ××Ù××ØÑÔÖØÙÖÖØÕÙTc, ÓÒ×ÕÙÒÐÐÓÒÙÙÖÔÒØÖØÓÒλÖÒØ(M ≃ ÇÒÔÓ×4π<br />
✷A = jËÐÓÙÖÒØj×ØÖÔÖÐÔÖ×ÒÙÒÑÔA×ÓÒ×j = −M2A −M2AÕÙ×ØÕÙÚÐÒØÐÕÙØÓÒÔÖÓÔØÓÒÙÒ B = j = (−M 2 B <br />
A)<br />
A =<br />
∇ 2 B = −M 2 <br />
B<br />
B = B0 exp −Mx ÖØÖ×ÔÖÐÐÓÒÙÙÖÔÒØÖØÓÒ <br />
Ò×ÐÑÑØØÕÙÒØÕÙ|p〉<br />
λ = 1/M<br />
j = (−Q 2 /m) | φ | 2 <br />
A<br />
m = 2meÒÙÒØc | φ | 2 =<br />
ns<br />
∇ × j = − 22 ns<br />
2me 2 B <br />
λ = M −1 <br />
2me<br />
=<br />
22 2<br />
ns<br />
4.1028 m−3 , 2me ≃ 5.1014 m−1ÓÒÓØÒØλ≃10 −8 20ÎËÐØÑÔÖØÙÖÙ×ÙÔÖÓÒÙØÙÖ 100ÕÙ<br />
m ≃<br />
c/λ ≃<br />
c = 1
10 8<br />
[m −1 ]<br />
M<br />
ÚÓÐÙØÓÒÐÑ××ØÚÙÔÓØÓÒÒÓÒØÓÒÐØÑÔÖ ØÙÖÙÒÑÐÙ×ÙÔÖÓÒÙØÙÖ<br />
Τ<br />
Τ<br />
ÈÓÙÖØÖÒ×ÔÓ×ÖÙÒØÐÐ×ØÙØÓÒÒ×ÐÓÒØÜØÙÒØÓÖÙÓÒ<br />
c<br />
×ØÑÒÔÓ×ØÙÐÖÐÜ×ØÒÒ×ØÓÙØÐ×ÔÙÒÑÔ×ÐÖÑÔ Ó×ÓÒ××Ù×ÔØÐÒÒÖÖÙÒÓÙÖÒØÖÒØÐÓÒ× ÔÖ×ÓÓÔÖÒÓÒ×ÕÙÒÐ×ÑÔ×ÙØÐ×ÑÔ×ÖÑÓÒ× ÔÙÚÒØÕÙÖÖÙÒÑ×× ÒÓÒÒÙÐÐ ÑÔÖÒÓÒØÖÒÔÝ×ÕÙ×ÔÖØÙÐ×ÐÑÔÐØÙÑÓÝÒÒÒ×ÐÚ×Ø ÑÔÔÖ×ÒØÙÒÖØÖ×ØÕÙÕÙÓÒÒÖØÖÓÙÚÒ×ÙÙÒÙØÖ<br />
ÆÑÙØ×ÙÖÐ×ÐØÓÖÒÞÙÖÄÒÙÒ×ÙÔÖÓÒÙØÚØ Ä×ÖÔØÓÒØÓÖÕÙÙÒØÐÑÔØÐÓÖÔÖØÖÙÒ×Ù×ØÓÒ <br />
〈0|φ|0〉 = 0<br />
ÓÑÑÕÙÒØÑÔØÓÙØÓ××ÔÖÑÖ×Ö×ÙÐØØ×ÑÒÒØØÖÓÒÖÑ×ÚÓÖ Ä×ÜÔÖÒ×ÙÄÈÁÁÙÊÆÓÒØÓÙÖÒÙÒ×ÒÐØÒÙÚÒÑÒØ×ÒØ×<br />
ÊÔÔÐ ÐÓÙÖÒØ××ÓÙÒÑÔ×ÐÖφ×ØÓÒÒÔÖj µ (φ) =<br />
iq[φ∗ (∂ µ φ) − (∂ µ φ∗ )φ]<br />
ØÐÈ ÙÒÀ×Ó×ÓÒÈÖØÐÄÒ×ØÒ×
a)<br />
φ 1<br />
v (φ1 , φ2)<br />
φ 2<br />
v (φ1 , φ2)<br />
Cercle Vmin ( r = µ/λ)<br />
+ iφ2V (φ) ÐÐÙÖÙÔÓØÒØÐÙÑÔÓÑÔÐÜφ=φ1 ÔÓÙÖµ 2 > 0V (φ)ÔÓÙÖµ 2 < 0 ÓÒ×ÖÓÒ×ÐÑÔ×ÐÖÓÑÔÐÜφ∈φ = ÔÓ×ÒØ×φ1Øφ2ØÒØÖÐÐ×ÄÄÖÒÒÜÔÖÑÒÓÒØÓÒφ, φ∗Ø ÐÙÖ×ÖÚ××ÖØ L = (∂ µ φ)(∂ µ φ) ∗ ÄØÖÑÙÔÓØÒØÐÔÙØØÖÜÔÐØ×ÓÙ×ÐÓÖÑ <br />
− V (φ)<br />
V (φ) = −µ 2 φ ∗ φ + λ 2 (φ ∗ φ) 2 <br />
= − 1<br />
2 µ2 (φ 2 1 + φ 2 2) + 1<br />
4 λ2 (φ 2 1 + φ 2 2) 2 µØλ×ÓÒØ×ÓÒ×ØÒØ×ÔÓ×ØÚ× ,Ó<br />
ÖÝÓÒ ÙÖ φ2)ÐÐÐÙÖÙÒÓÒÓÙØÐÐÚÓÖ<br />
φ2)ÙÒÑÜÑÙÑÐÓÐÓÖÖ×<br />
φ2)××ØÙ×ÙÖÐÖÐ Ò×ÐÔÐÒÓÑÔÐÜφ1, φ2, V (φ1, ÐÓÖÒφ1 = φ2 = 0, V (φ1, ÔÓÒÒØÙÒØØÒ×ØÐÄÐÙ×ÑÒÑV (φ1,<br />
<br />
| φÑÒ|= φ2 1 + φ2 µ<br />
2 =<br />
λ ≡ f ×Ø×Ø×Ø ÁÐÖÔÖ×ÒØÐÒ×ÑÐ×ØØ×ÕÙÐÖ×ØÐÈÓÙÖ×ØØ×ÐÖÐØÓÒ <br />
√<br />
2<br />
〈0|φÑÒ|0〉 = f √ = 0<br />
2<br />
b)<br />
φ 1<br />
φ 2<br />
1 √ 2 (φ1 + iφ2)Ð×ÓÑ
ÓÖÑ ÇÒÔÙØÔ××ÖÙÒ×ØØ×ÕÙÐÖÐÙØÖÔÖÐØÖÒ×ÓÖÑØÓÒ ÐÓÐU(1) = φÚ= f √ e<br />
2 iα ÐÓÖ×ÕÙÐÔÓØÒØÐØÐÄÖÒÒ×Ø×ÝÑØÖÕÙÒÚÖÒØ×ÓÙ×ÐØÖÒ×ÓÖ ËÐÓÒÔÖÒÙÒ×ØØ×ÕÙÐÖÙ×ÖÐÔÔÖØ××ÝÑØÖÕÙ <br />
ÑØÓÒU(1)ÇÒÙÒ×ØÙØÓÒ×ÝÑØÖÖ×ÓÒØÙ×××ÝÑØÖ ×ØÒØÒØÓÒÒÐÐÑÒØÕÙÓÒÑ×ÙÒ×ÒÒØÚÒØÐØÖÑÒµ 2 ÐÐÐÙÖÙÒÓÒÑÔÓÖÚÓÖÙÖ ÐÜÔÖ××ÓÒ φ2)ÙÖØÙ ËÓÒÚØÑ×ÙÒ×ÒÔÓ×ØV (φ1, ÚÙÒÑÒÑÙÑÒφ1 = ÄÚÐÙÖµ 2 ××ÝÑØÖÕÙ× ×ÓÐÙØÓÒÙÒØØÕÙÐÖ×ÝÑØÖÕÙØÐÐØØ×ÕÙÐÖÒÖ× ÊÚÒÓÒ×ÙÒ×ØÙØÓÒ×ÝÑØÖÖ×ÒÓÒ×ÖÒØÐØØ<br />
Óη(x)Øχ(x)×ÓÒØ×ÑÔ××ÐÖ×ØÐ×ÕÙ <br />
<br />
ÚÓ×ÒÙÒÔÓÒØÐÜÖÐÙÔÐÒÚÓÖÙÖ<br />
λØ<br />
ËÓÒÒ×ÖÒ×ÐÜÔÖ××ÓÒÙÄÖÒÒ ÓÒÓØÒØ<br />
0ÇÒ××ØÙÓÒÙ ÒØÒÒØÓÑÔØ = ÇÒÔÙØ×ÖÔÖ×ÒØÖη(x)ÓÑÑÙÒÙØÙØÓÒÖÐÙØÓÙÖφ1 = χ(x)ÓÑÑÙÒÙØÙØÓÒÞÑÙØÐÙØÓÙÖφ2<br />
ÉÓÒ×ØÖÙÖÐÜÔÖ××ÓÒÓÑÔÐØÙÄÖÒÒÚÓÖÕÙL(η)×ØØÚ ÑÒØ××ÝÑØÖÕÙÐÓÖ×ÕÙL(φ)×Ø×ÝÑØÖÕÙ ÇÒÒÜÔÐØÕÙÐ×ØÖÑ××ÒØ×ÔÓÙÖÐÔÖ×ÒØ×Ù××ÓÒ<br />
ÄØÖÑÒη(x)ÖÔÖ×ÒØÐÓÒØÖÙØÓÒÙÒÑÔ×ÐÖÚ×ÐÑÒØ<br />
= Ñ××ÕÙ(mη 2µ 2 Ò×ÐÐØØÖØÙÖÓÒØÖÓÙÚÔÐÙ××ÓÙÚÒØØÖÑÚÐ×ÒÔÓ×ØÑ×ÓÒÓ×Ø ×ØÕÙÓÒÒÓÑÑÐÑÔ×Ó×ÓÒ×À×Ä<br />
) ÒÖµ 2<br />
e iαÓα∈Ê×ØÙÒÔÖÑØÖÖÐ×ØØ××ÓÒØÓÒÐ<br />
φ2 = 0ÄØØÕÙÐÖ×ØÐÒÕÙ×ØÓÒ×ÖØ×ÝÑØÖÕÙ×ÓÙ×U(1)××Ù×<br />
= 0×ØÓÒÙÒÔÓÒØÖØÕÙÓ×ØÙÐØÖÒ×ØÓÒÒØÖÐ<br />
φ(x) = 1<br />
<br />
<br />
µ<br />
√ + η(x) + iχ(x)<br />
2 λ<br />
〈0|ηÑÒ|0〉 = 0Ø〈0|χÑÒ|0〉 = 0 µ<br />
<br />
1<br />
L =<br />
2 (∂µη)(∂ µ η) − 1<br />
2 (2µ2 )η 2<br />
<br />
1<br />
+<br />
2 (∂µχ)(∂ µ <br />
<br />
χ) + ...<br />
< 0
Vmin<br />
µ/λ<br />
Im φ<br />
= φ 2<br />
φ<br />
χ<br />
V<br />
η<br />
Re φ = φ1 ÕÙÓÒÔÔÐÐÐÑÔÓ×ÓÒ×ÓÐ×ØÓÒ ØÖÑÒχ(x)ÖÔÖ×ÒØÐÓÒØÖÙØÓÒÙÒÑÔ×ÐÖ×Ò×Ñ×× ÇÒÔÙØÓÑÔÖÒÖÒØÙØÚÑÒØÖ×ÙÐØØÒÑÒÒØÙÒÔØØÔÐ ×Ø VÑÒ(Re(φ), Im(φ)) = VÑÒ(φ1, φ2).<br />
ØÒÒØÐÐÑÒØÒÓØÖÒ ÑÒØÔÖÖÔÔÓÖØÐÖÓÒVÑÒÙÖ ÐÒÖÒØÕÙÓÐÔÖ×ÒÙÒØÖÑÑ××ÐÓÖ×ÕÙ×ÔÐÖ ÁÐÙØÑÒØÒÒØÜÑÒÖÐ×ÓÒ×ÕÙÒ×ÐÒØÖØÓÒÒØÖ×ÑÔ× ×ÔÐÖÖÐÑÒØÓØ<br />
Ó×ÓÒ×ØÙÒÑÔÙ×ØÐÓØÙÔÖÖÔ×ÙÚÒØ Ö×ÙÖÐ×ÝÑØÖÙÐÓÐÑÒ×Ñ<br />
ÑÓÐÓÐ×ØÓÒÕÙÓÒÚÒØÔÖ×ÒØÖÚÐØÓÒÙÒÒØÖØÓÒ Ò××ÓÖÑÐÔÐÙ××ÑÔÐÐÑÒ×ÑÀ××Ø××ÒØÐÐÑÒØÐ À×<br />
ÙÐÓÐÕÙÑÔÓ×ÐÒØÖÓÙØÓÒÙÒÑÔÙAµÚÐ×Ù×Ø ÐØÖÓÑÒØÕÙÐÐ×ØÑÒÔÖÐÔÔÐØÓÒÙÔÖÒÔÙÜ ÔÓ×Ù§ÓÒÖÕÙÖØÐÒÚÖÒÙÄÖÒÒ×ÓÙ×ÙÒØÖÒ×ÓÖÑØÓÒ<br />
ÑÓÐ×ØÙÒÐÐÙ×ØÖØÓÒÙÒØÓÖÑÒÖÐÂÓÐ×ØÓÒÆÙÓÚÓÑÒØÓ iqAµÒ×ÓÖÒÒØÙÜØÖÑ×Ð×ÔÐÙ××ÒØ×ÔÓÙÖÐ<br />
→ ØÙØÓÒ∂µ ∂µ +<br />
ÈÏÀ×ÈÝ×ÄØØ ØÈÝ×ÊÚÄØØ
ÔÖ×ÒØÜÔÓ×ÓÒÓØÒØÐÜÔÖ××ÓÒÙÄÖÒÒ×ÙÚÒØ<br />
<br />
Lη,χ,Aµ =<br />
Ñ××ÕÙη(x)ØÐÑÔ×Ò×Ñ××χ(x)ÓÐ×ØÓÒÔÐÙ×ÓÒØÖÓÙÚÐ ÇÒÖØÖÓÙÚÐ×ÓÒØÖÙØÓÒ××ÑÔ×ÖÒØ ×ØÖÐÑÔ ÉÓÒ×ØÖÙÖÐÜÔÖ××ÓÒÓÑÔÐØÙÄÖÒÒLη,χ,Aµ<br />
ÓÒØÖÙØÓÒÙÒÑÔÙÑ××ÕÙAµ(Ñ××qµ λ )ØØ×ØÙØÓÒÒÓÙÚÐÐ<br />
ÓØØÖÓÙÚÖÙÒÓÑÔÒ×ØÓÒÔÖÐÐÙÖ×ÐÐÔÙØØÖÑ×ÒÚÒÒ<br />
AµÔÙÖÑÒØØÖÒ×ÚÖ×ÐÙÔÖØÕÙÖØÙÒÔÓÐÖ×ØÓÒÐÓÒØÙÒÐÒ ÚÒÒØÑ××ÕÙÓÒÙÒÖÐÖØ×ÙÔÔÐÑÒØÖØÖÓ××ÑÒØ ÔÓ×ÙÒÔÖÓÐÑØÓÙÒØÙÒÓÑÖÖ×Ù×Ý×ØÑÒØÐÑÔ<br />
ÓÖÑ ÖÒ××ÒØÐÑÔφ(x)ÒØÖÑ××ÓÒÑÓÙÐØ×Ô××ÓÙ×Ð<br />
H(x)Øξ(x)×ÓÒØ××ÐÖ×ÖÐ×ÙÜÑÓÝÒÒ×Ò×ÐÚÒÙÐÐ× Ó <br />
×ÖÐØÙÖÔ×ÕÙÒØÖÒÐÐÑÒØÓÒÙÑÔξ(x)ÓÐ×ØÓÒ ÈÖÙÒØÖÒ×ÓÖÑØÓÒÙÕÙØ×ÓÙ×ËÍLÓÒ×ÖÖÒÓÑÔÒ<br />
<br />
Ò×ÐÜÔÖ××ÓÒÙÄÖÒÒ×ØÕÙÓÒÔÔÐÐÐÑÒ×ÑÀ×<br />
φ(x)<br />
Ò×ØØÙÔÖØÙÐÖÔÔÐÓÑÑÙÒÑÒØÙÙÒØÖÐÜÔÖ××ÓÒ ÙÑÔφ(x)×Ø <br />
<br />
φ ØÐÐÙÑÔAµA ′ µ(x) = Aµ(x) + 1<br />
q µ <br />
∂µξ(x)<br />
λ<br />
<br />
+<br />
<br />
1<br />
2 (∂µη)(∂ µ η) + 1<br />
2 (2µ2 )η 2<br />
<br />
<br />
− 1<br />
4 FµνF µν + 1<br />
2<br />
Fµν = ∂µAν − ∂νAµ<br />
+<br />
<br />
qµ<br />
2 AµA<br />
λ<br />
µ<br />
<br />
= 1 <br />
µ<br />
<br />
√ + H(x) exp i<br />
2 λ ξ(x)<br />
µ<br />
′ = 1<br />
√ 2<br />
<br />
µ<br />
+ H(x)<br />
λ<br />
λ<br />
1<br />
2 (∂µχ)(∂ µ χ)<br />
+ ... , Ó
H<br />
H<br />
H 2 AµA µ<br />
A<br />
A<br />
AµA µ H<br />
H 3 H 4<br />
H<br />
H H<br />
H<br />
H<br />
H H<br />
ÖÑÑ×ÒØÖØÓÒÒØÖÑÔÀ×ØÑÔA µØ ÑÔÀ×ÚÐÙÑÑ ÄÄÖÒÒ ÚÒØ<br />
LH,Aµ =<br />
1<br />
<br />
<br />
ÄÄÖÒÒLH,AµÖØÓÖÖØÑÒØÐ×ÔØÖÑ×××ØØÒÙÁÐÖÔÖ<br />
ÒØÖÐ×ÑÔ×ÚÓÖÙÖ ×ÒØÙÜÔÖØÙÐ×Ñ××Ú×ÒØÖ××ÒØ×ÐÓ×ÓÒ×ÐÖÀ×Ñ×× Ä×ÙØÖ×<br />
ÉÓÒ×ØÖÙÖÐÜÔÖ××ÓÒÙÄÖÒÒLH,Aµ<br />
ÐÐÐÙ×ØÖÓÒ×Ù§<br />
ØØÒÐÝ×ÔÙØØÖØÒÙÙØÖ××ÝÑØÖ×ÙÕÙU(1)ÒÓÙ× ØÖÑ×ÐÖÐØÓÒÖÚÒØÐÓÒ×ØÒØ1<br />
mH = 2µ 2ØÐÓ×ÓÒÙÚØÓÖÐAµÑ××mAµ<br />
+<br />
+<br />
2 (∂µH)(∂ µ H) + 1<br />
2 (2µ2 )H 2<br />
<br />
− 1<br />
4 FµνF µν + 1<br />
<br />
qµ<br />
2 λ<br />
2 q µ<br />
HAµA<br />
λ<br />
µ + 1<br />
2<br />
AµA µ<br />
<br />
H<br />
2 q2H 2 AµA µ − λµH 3 − 1<br />
4 λ2H 4 + 1<br />
4<br />
=<br />
µ 4<br />
4<br />
A<br />
A<br />
µ 4<br />
λ2 qµ<br />
λ<br />
λ2ÔÖ×Ð×ÒØÖØÓÒ×
ÄØÓÖÐØÖÓÐÏ Ä×Ó×ÔÒØÐÝÔÖÖÐ×Ð×ÝÑØÖËÍ<br />
ÒÜÔÓ×ÖÐ×××ØÒÖÔÔÐÖÐ×ÔÖØÓÒ××ÐÐÒØ××Ò×ÒØÖÖÒ× ×ØÐ×ÐÙÐ ØÚÓÕÙÒ×ÓÙÖ×ÒÔÖØÙÐÖÙÔØÖÆÓØÖÓØ×Ø ÄÒÓÑÐØÓÖÐØÖÓÐÑÓÐÐ×ÓÛÏÒÖËÐÑ<br />
ÄÒÚÖÒÙ×ØÙÒÔÖÓÔÖØÒØÖÐ×ØÓÖ×ÑÔ×ÕÙÒ<br />
L<br />
ØÕÙ×ÔÖÕÙÐÐÖÒØØÕÙÐ×ÖÒÙÖ×ÐÙÐ×ÓÒØ×ÚÐÙÖ×Ò× ÄØÓÖÉÒ×ØÙÒÜÑÔÐÓÒÚÙ§ ÕÙÐÄÖÒÒLQED×Ø<br />
ÇÒ×ÔÓ××ÐÓÖ×ÐÕÙ×ØÓÒÕÙÐ×ØÐÖÓÙÔ×ÝÑØÖÙÖÐÚÒØ<br />
ÐÓÙÖÒØÐÒÙØÖÑÑÕÙÐÓÙÖÒØÑØÓÙÐ×ÓÑÔÓ×ÒØ×Ù Ò×Ð×ÐÒØÖØÓÒÐÍÒÖÔÓÒ×Ø×ÙÖÔÖËÄÐ×ÓÛ ÕÙÐÓÑÔÓ×ÒØÙÖÐØ ÖØÖÓØÖÐر1ÇÒÒØÖÓÙØÐÓÒÔØ×Ó×ÔÒÐÒ Ò×ÓÒÒØ×ÙÖÐÓ×ÖÚØÓÒÕÙÐ×ÓÙÖÒØ×Ð×Ö×ÒØÒØ ×ÖÑÓÒ×ÐÔØÓÒ×ØÕÙÖ×ÐÓÖ×ÕÙ<br />
×ØÖÒ×ÓÖÑØÓÒ×ÙÒÖÓÙÔ×ÝÑØÖËÍLÒ×Ð×Ô×Ó×ÔÒÐ ÙÖ×ÙÒÑÐÐÖÑÓÒ××ÓÒØÓÒ×Ö×ÓÑÑÓÖÑÒØÙÒÓÙÐØ<br />
T3)ÓÒØÐ×ÓÑÔÓ×ÒØ×Ti×ÓÒØÐ×ÒÖØÙÖ×<br />
iεijkTkÖÓÙÔÒÓÒÐÒÄ×ÑÑÖ× ÔÖÐÚØÙÖÓÔÖØÙÖT(T1, T2, Ä×TiÒÓÑÑÙØÒØÔ×[Ti, Tj] =<br />
ÓÙÐØ×ØÖÒ×ÓÖÑ×ÓÙ×ËÍ LÓÑÑ <br />
×Ðק ÌÝÔÕÙÑÒØÐ×ÑÔÐØÙ×ØÖÒ×ØÓÒÒ×ÐÐÙÐ×ÔÖØÙÖØÓÒ××ÓÒØÖÒÓÖÑÐ ÊÔÔÐÓÒ×ÕÙÐ×ÓÑÔÓ×ÒØ×fL,RÙÒÖÑÓÒ×f×ÓØÒÒÒØÔÖÐÓÔÖØÓÒÔÖÓ<br />
g×ØÙÒÖÐÔÖÒÐÓÚÐÖÐØÖÕÙÙÒØe<br />
ÙÜÙÜÙØÖ×ÑÐÐ×<br />
ÈÓÙÖ×ÑÔÐÖÐÖØÙÖÓÒ××ØÐÑØÐÔÖÑÖÑÐÐÐ×ÖÔØÓÒÔÙØØÖØÒÙ ØÓÒfL,R =<br />
× U(1)Y<br />
ÒÚÖÒØ×ÓÙ×ÐØÖÒ×ÓÖÑØÓÒÙ<br />
U(1) = exp[iqα(x)] <br />
×Ó×ÔÒÐØÐÕÙ<br />
T = 1<br />
2 , T3<br />
<br />
+1/2<br />
=<br />
−1/2<br />
T = 1<br />
νe<br />
e −<br />
<br />
u<br />
, ...ÓÙ<br />
d<br />
L<br />
′<br />
χ ′ L ⇒ exp[igθ(x) · T] χL,Ó <br />
νe<br />
χL =<br />
e− <br />
u<br />
, ...,ÓÙ<br />
d ′<br />
2τÓÐ×τi×ÓÒØÐ×ÑØÖ×ÈÙÐ 1 γ5)fÚLÔÓÙÖÐØØÊÔÓÙÖÖØ<br />
2 (1 ∓<br />
<br />
L<br />
<br />
, ...<br />
L<br />
, ...
ÓÖÑÒØÙÒ×ÒÙÐØ×Ó×ÔÒÐØÐÕÙ Ä×ÑÑÖ×ÖÓØÖ×ÐÑÑÑÐÐÖÑÓÒ××ÓÒØÓÒ×Ö×ÓÑÑ<br />
T = 0 ; T3 = 0 : e −<br />
R , ... , uR , d ′ ÁÐ××ØÖÒ×ÓÖÑÒØ×ÓÙ×U(1)YWÓÑÑ <br />
ÓÙ <br />
R , ...<br />
ØÖØÓÒÓÖØÖÐØÓÒ ÄÖÒÙÖYW×ØÒÔÖÒÐÓÚÐÝÔÖÖÒØÖÓÙØÒÒ<br />
YW×ØÐÝÔÖÖÐ<br />
R<br />
ÇÒÓÒ×ÒÒ×ÐØÐÙ Ð×ÚÐÙÖ×ÒÙÑÖÕÙ××ÒÓÑÖ×ÕÙÒ<br />
YW<br />
Ù××Ó×ÙÖÓÙÔËÍ ÒØÖØÓÒÄÑÓÐÐ×ÓÛÏÒÖËÐÑÒØÖÓÙØØÖÓ×ÑÔ× Ä×ØÖÒ×ÓÖÑØÓÒ×ÐÓÐ× T3ØYW××Ò×ÙÜÖÒØ×ØØ×ÖÑÓÒ×<br />
LØÓÖÑÒØÙÒØÖÔÐØ×Ó×ÔÒÐÚØÙÖ Ø ÑÔÐÕÙÒØÐÜ×ØÒÑÔ× ØÕÙ×Ø×T,<br />
ØÙÒÑÔÙ××ÓÙÖÓÙÔU(1)YWÓÖÑÒØÙÒ×ÒÙÐØ×Ó×ÔÒ <br />
Ð×ÐÖ<br />
⎠<br />
T = 0 ; T3 = 0 : (B µ <br />
ÑÓÒ×ÙÖ× Ä×ÝÑØÖÓÑÒËÍ ×Ò×Ñ×× ÇÒÔÙØ×ÐÓÖ×ÖÖÐ×ÜÔÖ××ÓÒ××ÖÚ×ÓÚÖÒØ×ÈÓÙÖÐ×Ö<br />
U(1)YWØÒØ×ÙÔÔÓ×ÔÖØ×ÑÔ××ÓÒØ<br />
)<br />
L ×<br />
D<br />
2 Bµ ÖÓØÖÐÙØÖÒ×ÙÒÑÑÑÐÐÖÑÓÒ×ÊÔÔÐÓÒ×ÔÖÐÐÙÖ×ÕÙÐ×ÒÙØÖÒÓ× ÂÙ×ÕÙÔÖÙÚÙÓÒØÖÖÐÒÝÔ×ØÖÒ×ØÓÒÐ×ÒØÔ××ÖÙÒÑÑÖ <br />
ÔÖÖÙÒÔÖØØÙÜ×Ó×ÔÒØÝÔÖÖÐ×ÙØÖÔÖØÐÒÝÒØÖÙÜ Ò×ÓÒØÓ×ÖÚ×ÕÙÒ×ÐØØÙÖ§ ÕÙÙÒ×ÑÐØÙÓÒ×ØÖÙØÓÒÓÖÑÐÐ ÊÑÖÕÙÓÒ×ÕÙÐÒÜ×ØÙÙÒÓÒÒÜÓÒÔÝ×ÕÙÒØÖÐ×ÓÒÔØ××Ó×ÔÒØÝ ÆÓØÓÒ×ÕÙÒ×ÐÑÓÐÐÔÓØÓÒØÐÐÙÓÒÒÓÒØÔ×ØØÖÙØ×Ó×ÔÒÐ<br />
χ ′ R =⇒ exp[ig′ θ(x) YW<br />
uR , d ′ R , ...<br />
χR = e −<br />
, ...<br />
g ′×ØÙÒÙØÖÖÐ<br />
2<br />
⎧<br />
⎨ +1<br />
T = 1, T3 = −1<br />
⎩<br />
0<br />
= Q − T3<br />
:<br />
2 ]χR ,Ó<br />
µ = ∂ µ + ig τ<br />
2 · W µ + ig ′YW<br />
⎛<br />
W<br />
⎝<br />
µ<br />
1<br />
W µ<br />
2<br />
W µ<br />
⎞<br />
3
ØØ×ÖÑÓÒ<br />
νe, νµ, ντ<br />
e −<br />
L , µ−<br />
L<br />
e −<br />
R , µ−<br />
R<br />
, τ −<br />
L<br />
, τ −<br />
uL, cL, tL<br />
R<br />
É T<br />
+ 2<br />
3<br />
T3 YW<br />
d ′ L , s′ L , b′ L<br />
−1 1 − 3 2<br />
1 + 2<br />
1<br />
3<br />
uR, cR, tR + 2<br />
+ 3<br />
4<br />
3<br />
d ′ R , s′ R , b′ R<br />
−1 − 3<br />
2<br />
ØØÖÙ×ÙÜÖÒØ×ØØ×ÐØ×ÖÑÓÒ× Ì ÎÐÙÖ××ÒÓÑÖ×ÕÙÒØÕÙ××Ó×ÔÒØÝÔÖÖÐ×<br />
3<br />
ØÔÓÙÖÐ×ÖÑÓÒ×ÖÓØÖ×ÒÓÒØ×ÔÖËÍ L<br />
D µ = ∂ µ + ig ′YW<br />
2 Bµ ÔÖ××ÓÒÙÄÖÒÒÒÚÖÒØÔÖÒÐÓÖÑ×ÙÚÒØ ËÐÓÒÔÖÒÒÓÑÔØÐ×ØÖÑ×ÒÖÒØÕÙ×ÑÔ×ÙÐÜ <br />
<br />
L = χLγµ ∂ µ − ig τ<br />
2 · W µ − ig ′YW<br />
2 Bµ <br />
<br />
χL<br />
<br />
+ χRγµ ∂ µ − ig ′YW<br />
2 Bµ<br />
<br />
χR − 1<br />
4 W µν · W µν − 1 ÄÜÑÒ×ÓÑÔÓ×ÒØ×ÒØÖØÓÒ×ÖÑÓÒ×ÙÖ×ØÖÓØÖ×Ú<br />
µÑÒÒØÖ××ÒØ×ÙØÓÒ×ÐÐ×ÚÐÑÔ<br />
µν<br />
BµνB<br />
4 Ð×ÑÔ×W µØB<br />
1<br />
2<br />
1<br />
2<br />
1<br />
2<br />
1<br />
2<br />
1<br />
2<br />
1<br />
2<br />
+ 1<br />
3
W µÔÙÚÒØØÖÖØ×<br />
−igj µ · W µ <br />
1√2<br />
= −ig (j + µ W µ+ + j − µ W µ− ) + j 3 Ó <br />
<br />
µ3<br />
µ W ,<br />
τ<br />
j µ = χLγµ 2 χL ,<br />
j ± µ = j 1 µ ± ij 2 µ ,<br />
W µ± = 1 √ (W<br />
2 µ1 ∓ iW µ2 ) ÐÐ×ÚÐÑÔB µÓÒØÐÓÖÑ<br />
jYW<br />
′ µ<br />
−ig<br />
2 Bµ = −ig ′ [(j em<br />
µ − j3 µ )Bµ Ó <br />
] ,<br />
j YW<br />
µ = χLγµYWχL + χRγµYWχR ,<br />
j em<br />
µ = eχ ØÓÙØÓ×ÓÒÒ×ØÒÙÔ×ÙÔÖÑÖÓÙÔÓÐÕÙÔÙØÔÖÓÚÒÖÙ ØÖÑÓÒØ ÇÒÖÓÒÒØÒ×ÐÔÖÑÖÔÖØÙØÖÑÖÓØ ÙØÓÒÐÒØÖØÓÒÔÖÓÚÒÒØ×ÓÙÖÒØ×Ð×Ö×Ä×ÓÒÔÖØ ÐÓÒØÖ<br />
ÓÙÖÒØÐÒÙØÖØÙÓÙÖÒØÐØÖÓÑÒØÕÙÄÑÓÐÏËÒÓÙ× ÖÔÖ×ÒØÐ×ÓÒØÖÙØÓÒ×ÓÙÖÒØ×ÒÙØÖ×<br />
LγµQχL + eχRγµQχR ÔÔÓÖØÐÐÖÒ××ÖÔÖÓÔÓ×ÐÓÒ×ÖÕÙÐ×ÑÔ×W µ3 , B µ ×ÓÒØ×ÓÑÒ×ÓÒ×ÐÒÖ×ØÓÖØÓÓÒÐ××ÑÔ×Z µ , A µ<br />
<br />
µ3 W<br />
B µ<br />
<br />
µ<br />
cosθW sin θW Z<br />
=<br />
− sin θW cosθW A µ ÚÓÖ§ θW×ØÐÒÐÑÐÒÐØÖÓÐÔÔÐÓÑÑÙÒÑÒØÐÒÐÏÒÖ<br />
<br />
, Ó:<br />
Ò×Ù×ØØÙÒØÐ×ÜÔÖ××ÓÒ×W µ3ØB µÒØÖÑ×A µ , Z µÒ×<br />
<br />
Ø ØÒÖÖÓÙÔÒØÐ×ÔÒÒ×ÒA µ ÓÒØÖÙØÓÒ×ÓÙÖÒØÒÙØÖ×<br />
ÇÒÖÓÒÒØÑÒØÒÒØÒ× ÐÓÖÑÙ×ÙÐÐÙÓÙÔÐÑ<br />
ÇÒØÙ×ÐÖÐØÓÒYW 2 T3ÒØÒÒØÓÑÔØÙØÕÙT3 ÖÑÓÒÖÓØÖ<br />
0ÔÓÙÖÐ<br />
<br />
ËÐÓÒ×ÖÔÔÓÖØÙÜÒÓØØÓÒ×Ù§ÓÒgγ =<br />
−iej em<br />
−i[(g sin θW − g ′ cosθW)j 3 µ + g ′ cosθWj em<br />
µ ]A µ −i[(g cosθW + g ′ sin θW)j 3 µ − g′ sin θWj em<br />
µ ]Zµ<br />
µ Aµ×ÐÓÒÔÓ× g = e<br />
sin θW<br />
; g ′ = e<br />
, Z µÓÒÓØÒØÔÓÙÖÐ×<br />
cosθW<br />
= Q + =<br />
e, g = gW ±, g ′ = gZ sin θW
ØÔÖÓÒ×ÕÙÒØ <br />
ÌÒÒØÓÑÔØ ÐØÖÑÓÙÔÐÐÒÙØÖÔÙØ×ÖÖ <br />
g<br />
×ÓÙ×ÐÓÖÑ <br />
ÇÒÚÓØÔÔÖØÖÒ××ÓÒÒÜÓÒ×ÒØÑ×ÒØÖÐÓÙÖÒØÐÒÙØÖ Ð×ØÑ×ÔÖØÓÒ×ÙÑÓÐÏËÓÒØØØ×Ø×Ú×Ù×ÓÖÑ×<br />
µÒ×ÕÙÒØÖÐ×ÓÒ×ØÒØ×ÓÙÔÐ ÕÙÐ×ÕÙÒØ×ÑÔ×Ð×Ó×ÓÒ×W ±ØZÓÒØØØÖÓÙÚ×Ñ×××ÚÓÖ ÙÑÓÐÒ×Ò×ÔÖÒØÐÔÖÓÙÖÖØÙܧØØØ×ÓÒ ØÔØÐÓØÙÔÖÖÔ×ÙÚÒØ ÔØÖÌÓÙØÓ×ÓÒ×ØÙÑÓÒ×ÒÔÖÒÔÓÑÑÒØÖÑÖÙØ<br />
ÇÒÕÙØÖÑÔ×ÙÓÒØØÖÓ×ÓÚÒØØÖÖÒÙ×Ñ××××ÓØÐ× Ò×ÑÀ× ËÝÑØÖÐÓÐÖ×ËÍ L⊗Í YÑÔÐØÓÒÙÑ<br />
Ó×ÓÒ×W ±××Ó×ÙÜÓÙÖÒØ×Ð×Ö×ØÐÓ×ÓÒ××ÓÙÓÙÖÒØ ÐÖØØ×××ÙÖÖÔÐÙ×ÕÙÙÒ×ÝÑØÖÙÖ×ØÒÓÒÖ×ØÐÐ ÐÒÙØÖÁÐÙØÓÒÒØÖÓÙÖÙÒÑÔ×ÐÖÚÙÑÓÒ×ØÖÓ×Ö× ×ÓÖØÕÙÙÒÑÔÙ×Ò×Ñ×××Ù××ØÔÓÙÖÖÔÖ×ÒØÖÐÔÓØÓÒÒ× ÙÒÓÙÐØËÍ ÐÑÓÐÏËÓÒÒØÖÓÙØÙÒÑÔ×ÐÖÓÑÔÐÜ×ØÖÒ×ÓÖÑÒØÓÑÑ<br />
L<br />
T = 1<br />
2 , T3 <br />
ØÖ×ÔØÚÑÒØÐÙÖÝÔÖÖÐ<br />
=<br />
, Ó:<br />
ÆÓØÓÒ×ÕÙÑÔ×Ø×ÙÔÔÓ×ÓÖÑÖÙÒ×ÒÙÐØÓÙÐÙÖ<br />
2×ØÜÔÖÑÒÙÒØε0cÒÙÑÖÕÙÑÒØÓÒ ÚÙØÓÒYW =<br />
<br />
g2Øg ′2×ÓÒØ×Ò×ÑÒ×ÓÒe<br />
j NC<br />
−i<br />
g<br />
′<br />
g<br />
= tan θW<br />
<br />
1 1<br />
+<br />
g2 g ′2 = 1<br />
e2 (j<br />
cos θW<br />
3 µ − sin 2 θWj em<br />
µ )Z µ = −i<br />
cos θW<br />
j NC<br />
µ = j3 µ − sin 2 θWj em<br />
µ<br />
µØÐÓÙÖÒØÐØÖÓÑÒØÕÙj em<br />
g<br />
j NC<br />
µ Z µ ,Ó:<br />
<br />
+<br />
+1/2 φ = √2 1 (φ1 + iφ2)<br />
φ =<br />
−1/2 φ0 = 1<br />
φ4×ÓÒØ××ÐÖ×ÖÐ×<br />
√ (φ3 + iφ4)<br />
2<br />
φ1, ... ,<br />
φ + φ0ÓÒØ×Ö×ÐØÖÕÙ× ,<br />
+1.<br />
g2 /4π ≃ 1/30 ; g ′2 /4π ≃ 1/100 ; e2 /4π ≃ 1/137 ; sin 2 90Î<br />
0.231ÔÓÙÖÐÒÖÕÙÚÐÒØ<br />
θW ≃<br />
MZ ≃
ÑÔ×Ø×ÙÔÔÓ×ÚÓÖÙÒÑÓÝÒÒÒÓÒÒÙÐÐÒ×ÐÚØÓÒØÐ ÓÜφ1 = λ )<br />
ÚÓ×ØÓÒÖÒØÐ×ÓÓÙÐØÒØÖÑ××ÓÒÑÓÙÐØ×Ô× Ò×ÙÚÒØÐÔÖÓÙÖÖØÙ§ÓÒÚÐÓÔÔφ(x)ÙØÓÙÖÐØØ <br />
<br />
<br />
ÐÚ<br />
, Ó:<br />
Ä×ØÖÓ×Ö×ÐÖØÒ×ÐÖ××ÖØÖÓÙÚÒØÒ×Ð×ÓÑÔÓ×ÒØ× ÈÖÙÒÓÜÙÕÙØÙÙÒØÖÐØÙÖÔ××ØÓÑÔÒ×<br />
ξ3(x)Ó×ÓÒ×ÓÐ×ØÓÒ ÓÒÐÑÒÖÐ×ØÖÓ×ÓÑÔÓ×ÒØ×ξ1(x), ξ2(x), ÔÓÐÖ×ØÓÒÐÓÒØÙÒÐ×ÑÔ×W ±ØZÒ×ØØÙÐÄÖÒÒ <br />
<br />
φ2 = φ4 = 0 ; φ3 = µ<br />
〈0|φ|0〉 = φÚ= 1<br />
√<br />
2<br />
0µ<br />
λ<br />
φ(x) = 1 <br />
0µ<br />
iξ(x) · τ<br />
√ exp<br />
2 + H(x)<br />
λ 2 µ<br />
ξ3(x)]×ÓÒØ×ÑÔ×ÖÐ×ÑÓÝÒÒ×ÒÙÐÐ×Ò×<br />
<br />
λ<br />
H(x)Ø[ξ1(x), ξ2(x),<br />
×ØÐÓÖÑ LH,W ±µ ,Z µ ,A µ =<br />
(τ1, τ2, τ3)×ÓÒØÐ×ÑØÖ×ÈÙÐ<br />
+<br />
1<br />
2 (∂µH)(∂ µ H) + 1<br />
2 (2µ2 )H 2<br />
<br />
− 1<br />
2 (FW −)µν(FW +) µν + 1<br />
2<br />
<br />
g µ<br />
λ<br />
2 (W−)µ(W+) ν<br />
<br />
+ − 1<br />
4 ZµνZ µν + 1<br />
<br />
µ<br />
2 (g<br />
2 2λ<br />
2 + g ′2 )ZµZ µ<br />
<br />
+ − 1<br />
<br />
′µν<br />
FµνF + ....... , Ó:<br />
4<br />
Fµν ∂µAν − ∂νAµ<br />
FW ∓)µν∂µ(W∓)ν ÇÒÒÓÒ×ÖÚÒ× Ð×ÔØÖÑ×××Ð×ÔÖØÓÒ×ÙÑÓÐ×ÓÒØ Ñ××ÓÒÖÒÒØÐÓ×ÓÒÀ×ØÐ×Ó×ÓÒ×ÙÒÕÙÓÒÖÒ ÕÙÐ×ØÖÑ×ÒÖ×ÒØÕÙ×ØÒÖ×<br />
− ∂ν(W∓)µ<br />
Zµν ∂µZν − ∂νZµ<br />
MW ± = 1<br />
2 gµ<br />
λ ; MZ = 1<br />
2 (g2 + g ′2 ) 1 µ<br />
2<br />
λ ; ÜÖ ÄÜÔÖ××ÓÒÓÑÔÐØÙÄÖÒÒÔÙØ×ØÖÓÙÚÖÒ×ÐÐØØÖØÙÖ×ÔÐ×ÚÓÖÔÖ ÓÜ×ØÒÖÔÔÓÖØÚÐÓÒ×ÖÚØÓÒÐÖÐØÖÕÙ ÓÙÐØÖÓÛÒØÖØÓÒ×ÈÊÒØÓÒÑÖÍÒÚÈÖ××<br />
Ó:<br />
ÄØÙÖ1 2Ò×ÐÜÔÖ××ÓÒM W ×ÒØ×W µ<br />
<br />
iÒ× ±×ÓÑÔÖÒ×ÓÒÚÐÓÔÔÒØÖÑ×ÓÑÔÓ
MW ±<br />
g<br />
MZ (g2+g ′2 ) 1/2 = cos θW<br />
MH (2µ 2 ) 1/2 ÒÓÑÒÒØ Ø ØÒÙØÐ×ÒØÓÒÓØÒØ<br />
µ<br />
λ = (√2 GF) −1<br />
2 = ( √ 2 · 1.166 · 10 −5 ) −1<br />
ÄÑÓÐÒØÔÖÓÒØÖÙÙÒÔÖØÓÒ×ÙÖÐ×ÚÐÙÖ×µØλÔÖ××<br />
2<br />
×ÔÖÑÒØØÒÓÒ×ÕÙÒ×ÙÖÐÑ××( 2µ 2 Ç×ÖÚÓÒ×ÔÖÐÐÙÖ×ÕÙÐÑÔÐØÖÓÑÒØÕÙÒ×ØÔÖ×ÒØÒ× )ÙÓ×ÓÒÀ×<br />
ÄÜ×ØÒÙÔÓØÓÒ×Ò×Ñ×××ØÙÒÓÒ×ÕÙÒÙÓÜ<br />
= 0) ÕÙÔÖ×ÓÑÔÓ×ÒØÒÖÖØÕÙ(Mγ ÄØØÙÚÒÙØÖÒ×Ò×ØØÐÕÙT3 = −1 2 , YW = +1)<br />
QφÚ= T3 + YW ÁÐ×ØÒÚÖÒØ×ÓÙ×ÐØÖÒ×ÓÖÑØÓÒ <br />
φÚ <br />
φÚ= 0<br />
2<br />
ÐÔÓØÓÒÖ×Ø×Ò×Ñ××Ä×ØÖÓ×ÙØÖ×ÒÖØÙÖ×Ö×ÒØÐ×ÝÑØÖØÐ×<br />
U(1)ÑφÚ= exp(ieQα(x))φÚ=<br />
Ó×ÓÒ×××Ó×ÚÒÒÒØÑ×××<br />
ÔÓÙÖØÓÙØÚÐÙÖα(x)<br />
ÑÑÖ×ÙÒ×ØÖÓ×ÑÐÐ×ÐÔØÓÒ×ÓÒ×ØØÙÒØÙÒÓÙÐØ×Ó×ÔÒ ÓÒ×ÖÓÒ×ØÓÙØÓÖÐ××ÐÔØÓÒ×ÊÔÔÐÓÒק ÓÙÔÐÒØÖÑÔÀ×ØÑÔ×ÖÑÓÒÕÙÐ×<br />
= ÐÙÖχL νℓ ℓ− <br />
= ℓ LØÙÒ×ÒÙÐØ×Ó×ÔÒÐÖÓØÖχR −<br />
ℓ− = e− ÄÖÒÒ , µ LH,ÐÔØÓÒ=−gℓ[(χ LφÚχR) + (χRφÚχL)] = − gℓ<br />
<br />
µ<br />
√2<br />
λ (χ φÚ ÓÒ×ØÒØÓÙÔÐÖØÖÖ <br />
LχR + χRχL) + H(χLχR + χRχL) gℓ <br />
√2<br />
1 0µ<br />
λ +H(x) Ø φÚ= 1 <br />
<br />
√<br />
µ<br />
0 + H(x)<br />
2 λ<br />
≃ 246Î<br />
T,YW×ÙÐÐÓÑÒ×ÓÒQ U(1)Ñ×ØÒØÙÒ×ÓÙ×ÖÓÙÔËÍL×U(1)YW×ÕÙØÖÒÖØÙÖ× ×Ø×Ø ÑÔÐÕÙÒØÕÙ<br />
−ÄÓÙÔÐÙÑÔÀ×ÔÔÓÖØÙÒÓÒØÖÙØÓÒÙ RÓ<br />
<br />
−ÓÙτ<br />
,Ó:
ÄÐÔØÓÒÖÕÙÖØÙÒÑ×× <br />
mℓ<br />
ÖÓØÖÖ×Ø×Ò×Ñ×× ÔÖØÖ×Ñ×××Ñ×ÙÖ××ÐÔØÓÒ×Ö×<br />
λØÒØÓÒÒÙÓÒÚÓØÕÙÐÓÒ×ØÒØgℓÔÙØØÖØÖÑÒ<br />
Ð×ÙÜÑÑÖ×ÙÒ×ØÖÓ×ÑÐÐ×ÕÙÖ××ÓÒØÔÖ×ÒØ×Ò× Ä×ØÙØÓÒ×ØÔÐÙ×ÓÑÔÐÕÙÒ×Ð××ÕÙÖ×ÖÖÔÔÐÓÒ×ÕÙ ÊÑÖÕÙÓÒ×ÕÙÐÒÙØÖÒÓνℓÕÙÒÔ×ÓÑÔÓ×ÒØ×Ó×ÔÒÐ ÔÐÙ×ÐÔÖ×ÒØÙÒÓÙÔÐÙÓ×ÓÒÀ×ÓÒØÐÒØÒ×ØÚÙØgℓ<br />
Ð×ÓÓÙÐØÐÙÖØÒ×Ð×Ó×ÒÙÐØÐÖÓØÖÒÒÒÖÖ<br />
ÄÚÐÙÖµ<br />
ÙÒÑÔÀ×ÓÒÙÙÓÒØÐÓÖÑÒ×ÐÚ×Ø ×ØÖÑ×Ñ××ÔÓÙÖÐÑÑÖ×ÙÔÖÙÖÓÒ×ØÑÒÔÓ×ØÙÐÖÐÜ×ØÒ<br />
∗Ú= φÚ×ØÖÒ×ÓÖÑÒØÐÑÑÓÒ <br />
<br />
ÚÒØÓÒ××ØÐÑØÐÑÐÐ×ÕÙÖ×ÐÖ× ÄÓÒØÖÙØÓÒÙÄÖÒÒÙÙÓÙÔÐÒØÖÕÙÖ×ØÑÔÀ×<br />
2×ØÒÓÖ×Ø×Ø<br />
−1ØÐÐ×ÓÖØÕÙ ØØÓÒ×ØÖÙØÓÒÖÒØØÕÙφÚØ∼<br />
<br />
×ÓÙ×ËÍLÔÐÙ×ÓÒØØÖÙ∼<br />
= φÙÒÝÔÖÖYW + ÐÖÐØÓÒQ=T3 LH,ÕÙÖ= −<br />
gdØgu×ÓÒØ×ÓÒ×ØÒØ×ÓÙÔÐ<br />
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LuR + uRχL) + H(χLuR + uRχL)<br />
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