Bonn - Big Lecture Hall Mathematics
Higgs phenomenology in the triplet extension of the MSSM
Extending the Higgs sector of the MSSM by triplets alleviates the little hierarchy problem and naturally allows for enhancements in the diphoton decay rate of the lightest CP-even Higgs. In this talk the Higgs phenomenology of this theory with a hyperchargeless triplet is analyzed. In particular, for any value m_A > m_h there is a parameter region where the CP-even Higgs sector appears at colliders as the SM one, except for loop-induced corrections. At small m_A, moreover, there exists a second parameter region where the lightest CP-even Higgs phenomenology is as in the Standard Model except for decays into bottoms and taus. Improvements in the CP-odd and charged Higgs searches will be worthwhile to discriminate this scenario from the Standard Model.