Sala Seminarios IFIC (Edf. Institutos de Investigación)
Sala Seminarios IFIC
Edf. Institutos de Investigación
Descripción
Higgs particles in SUSY theories receive large radiative corrections in the fermion couplings that must be taken into account in phenomenological analyses. We present results on the analysis of the ratios of branching ratios R=BR(H -> b b-bar)/BR(H -> tau^+ tau^-) and R=BR(H^+ -> tau nu)/BR(H^+ -> t b-bar) of neutral and charged Higgs boson decays as discriminant quantities between supersymmetric and non-supersymmetric models. A detailed analysis in the effective Lagrangian approach has been done. For the ratio of charged Higgs boson decays, simulation of measurements of this quantity through the analysis of the charged Higgs production process gb-> t b H^+ and relative backgrounds in the two above decay channels has been performed in the context of ATLAS.