Higgs – Induced Lepton Flavor Violation
Higgs – Induced Lepton Flavor Violation
Higgs – Induced Lepton Flavor Violation
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Higher <strong>–</strong> dimensional operators : reminder<br />
17<br />
Now, we set off to try and reproduce the lepton mass hierarchy. Reminder of the initial<br />
hypothesis :<br />
L Y = Y u<br />
ij (H)Q Li u Rj H ¡ Y d<br />
ij(H)Q Li d Rj H c ¡ Y l<br />
ij(H)L Li e Rj H c + h:c:<br />
We consider the general expansion of the yukawas:<br />
Y ij (H) =<br />
1X<br />
n ij =0<br />
·(n ij)<br />
ij<br />
µ H y H<br />
M 2 nij<br />
- In principle an infinite series, where the<br />
lowest order terms should dominate for<br />
each Yukawa coupling.<br />
- Naturalness suggest that these<br />
coefficients should be O(1).<br />
- They could also be zero, if for<br />
instance some symmetry is at play<br />
in the high-energy theory.
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