Higgs Quark Couplings in SUSY with CP and Flavor Violations

Details Higgs Quark Couplings in SUSY with CP and Flavor Violations Higgs Quark Couplings in SUSY with CP and Flavor Violations

2004-02-06

arxiv.org/abs/hep-ph/0402074v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

To appear in the Proceedings of SUSY 2003, held at the University of Arizona, Tucson, AZ, 5-10 June 2003

Scientific paper

In minimal supersymmetric model with a light Higgs sector, explicit CP violation and most general flavor mixings in the sfermion sector, integration of the superpartners out of the spectrum induces potentially large contributions to the Yukawa couplings of light quarks via those of the heavier ones. These corrections can be sizeable even for moderate values of tan(beta), and remain nonvanishing even if all superpartners decouple. Then Higgs boson couplings to light quarks assume spectacular enhancements; in particular, couplings to down and strange quarks become degenerate with that to the bottom quark. There arise strikingly non-standard effects that can show up in both Higgs boson searches and FCNC observables.

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