Higgs couplings in the MSSM at large tan(beta)

Details Higgs couplings in the MSSM at large tan(beta) Higgs couplings in the MSSM at large tan(beta)

2008-10-21

arxiv.org/abs/0810.3768v1

JHEP 0901:031,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, LaTeX

Scientific paper

10.1088/1126-6708/2009/01/031

We consider tan(beta)-enhanced quantum effects in the minimal supersymmetric standard model (MSSM) including those from the Higgs sector. To this end, we match the MSSM to an effective two-Higgs doublet model (2HDM), assuming that all SUSY particles are heavy, and calculate the coefficients of the operators that vanish or are suppressed in the MSSM at tree-level. Our result clarifies the dependence of the large-tan(beta) resummation on the renormalization convention for tan(beta), and provides analytic expressions for the Yukawa and trilinear Higgs interactions. The numerical effect is analyzed by means of a parameter scan, and we find that the Higgs-sector effects, where present, are typically larger than those from the "wrong-Higgs" Yukawa couplings in the 2HDM.

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