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28 EHFHGHKH@ < wlhc jZ[hl_ ihdZaZgh dZdbf h[jZahf ih^h[gu_ khhlghr_gby \ nhjfZebaf_ [hj_e_\kdbo ijZ\be kmff ijb\h^yl d k\yab f_`^m f_ahg- [Zjbhggufb dhgklZglZfb g(ηΣ 0 Σ 0 bJη,Λ,Λ) . Ihykgbfhkgh\gmxb^_xgZijbf_j_68Fh`ghihdZaZlvqlh\SUdhg klZglu k\yab ^ey Σ-ih^h[guo [Zjbhgh\ %TTK k ^\mfy d\ZjdZfb h^gh]h ZjhfZlZ \ kbff_ljbqghfkhklhygbbkg_cljZevgufbf_ahgZfb0 ^π 0 , η`hij_^_eyxlky\ujZ `_gb_f g(MBB)=g Mqq 2F+g Mhh (F-D), ]^_Fb'-oZjZdl_jgu_dhgklZgluSUZagZq_gbydhgklZglk\yabf_ahgh\kd\ZjdZfb hij_^_eyxlkybanhjfmeulhdh\ j (π 0 )=√(1/2) (u γ 5 u - d γ 5 d), j(η)=√(1/6) (u γ 5 u + d γ 5 d - 2 s γ 5 s). GZihfgbfj_amevlZl68-g(ηΣ 0 Σ 0 ) = √(2/3)D, g(ηΛΛ) = -√(2/3)D. AZibr_f\ujZ`_gb_^eydhgklZgluJηΣ 0 Σ 0 \\b^_ g(ηΣ 0 Σ 0 ) = g ηuu F+g ηdd F+g ηss (F-D) = -g ηss D =√(2/3)D. L_i_jv aZibr_f nhjfZevgu_ \ujZ`_gby dhlhju_ ihemqZxlky ba \ur_ijb\_ ^_ggh]h\ujZ`_gbyaZf_gZfbX⇔ s) g(ηΣ 0 usΣ 0 us) = -g ηuu D=-√(1/6)D b (d ⇔ s) g(ηΣ 0 dsΣ 0 ds) = -g ηdd D=-√(1/6)D KijZ\_^eb\hke_^mxs__lh`^_kl\h 2 g(ηΣ 0 usΣ 0 us)+2 g(ηΣ 0 dsΣ 0 ds) - g(ηΣ 0 Σ 0 ) = 3g(ηΛΛ) Wlhlh`^_kl\hke_^m_lbak\yab\hegh\uonmgdpbcΣ 0 bΛ[Zjbhgh\b\kihfh]Z l_evguo]bi_jhgh\Σ 0 usbΣ 0 dsBlZdgZijbf_j_fh^_ebmgblZjghckbff_ljbbfuihdZ aZebdZdbfh[jZahfhlijZ\eyykvhl\ujZ`_gby^eyΣ 0 fh`ghihemqblv\ujZ`_gb_^ey Λ. HdZau\Z_lky qlh ZgZeh]bqgu_ khhlghr_gby bf_xl f_klh b \ kemqZ_ [hj_e_\ kdboijZ\bekmff^eyiheyjbaZpbhgguohi_jZlhjh\Π(Σ 0 bΠ(Λhij_^_e_gguolZd`_ dZd\>@Fh`ghihdZaZlvqlh^eygbokijZ\_^eb\ukhhlghr_gby 2 Π(Σ 0 us) + 2 Π(Σ 0 ds) – Π(Σ 0 )= 3 Π(Λ). ] b khojZgyy g_\ujh`^_ggufb \k_ fZkku d\Zjdh\ b bo dhg^_gkZlu ihemqbf ijZ\beh kmff\uibr_f_]ha^_kvlhevdh^eyh^ghcbaehj_gp_\kdbokljmdlmj^eydhgklZglu k\yabΣ 0 : √(1/2) m 2 η λ 2 Σ g(ηΣ 0 Σ 0 ) exp(-m 2 Σ /M 2 ) [1+A Σ M 2 ] = = m 2 η M 4 E0(x) [g ηss /12/π 2 /f η +3f 3η /4/f η /√(2)-M 2 /f η [g ηss [m d + m u ]- m 2 η /72/ f η [g ηss ] + m 2 0 /6/ f η [ (g ηuu m d +g ηdd m u )] ≡ D(u,d,s) 28
Ih^k_dpbyZlhfghcby^_jghcnbabdb 29 bf__lky \\b^m ihegZy aZ\bkbfhklv D(u, d, s hl dhgklZglJ ηqq fZkk d\Zjdh\ m q b bo dhg^_gkZlh\qq> , q = {u,d,s} : D(u, d, s) ≡ D(g(η,uu), m u, , g(η,dd), …)) DZd b \ fh^_eb mgblZjghc kbff_ljbb h[jZam_f \kihfh]Zl_evgu_ \_ebqbgu \ ijZ\hcqZklbijZ\bekmffIQaZf_gZfbX⇔Vbd ⇔V@Bhnn_;E;_ey_\HLDLHJHFATLASMKDHJBLEYLHC LhfkDK F=MbfF
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Ih^k_dpbyZlhfghcby^_jghcnbabdb 29<br />
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