Universality , Rare Decays and Split Fermions
نویسنده
چکیده
We investigate the constraint on the split fermions in extra dimensions by considering the universality of W leptonic decays W → liνi, the lepton decays li → ljνiν̄j, the lepton flavor violating process li → l̄jlklh and the li → ljγ transition where li = e, μ or τ . For the Standard Model (SM) background of W → liνi, we extended the one loop quantum correction to include effects of order ml /M 2 W and the Higgs mass dependence. We find that in general the split fermion scenarios the 4D effective Yukawa matrix of the Kaluza-Klein Higgs bosons is misaligned with respect to the fermion mass matrix. This leads to decays of li → l̄j lklh at tree level and li → ljγ transition at one loop level. Interestingly the leptonic universality of W boson decays are not affected.
منابع مشابه
Lepton Universality, Rare Decays and Split Fermions
We investigate the constraint on the split fermions in extra dimensions by considering the universality ofW leptonic decaysW → liνi, the charged lepton decays li → ljνiν̄j, and the lepton flavor violating process li → l̄jlklh where li = e, μ or τ . For the Standard Model (SM) background of W → liνi, we extended the one loop quantum correction to include effects of order ml /M 2 W and the Higgs ma...
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