Higgs-dependent Yukawa couplings

Details Higgs-dependent Yukawa couplings Higgs-dependent Yukawa couplings

2008-04-10

arxiv.org/abs/0804.1753v3

Phys.Lett.B665:79-85,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 4 figures; a comment on CP and a ref. added, to appear in PLB; a factor of 2 in eq.34 fixed

Scientific paper

10.1016/j.physletb.2008.05.062

We consider the possibility that the Yukawa couplings depend on the Higgs field, with the motivation of generating the fermion mass hierarchy through appropriate powers of the Higgs vacuum expectation value. This leads to drastic modifications of the Higgs branching ratios, new Higgs contributions to various flavor-violating processes, and observable rates for the top quark decay t-> hc. The underlying flavor dynamics must necessarily appear at the TeV scale and is within the reach of the LHC.

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