Radiative Yukawa Couplings for Supersymmetric Higgs Singlets at Large tan(beta)

Abstract

Singlet Higgs bosons present in extensions of the MSSM can have sizable Yukawa couplings to the b quark and the tau lepton for large values of tan(beta) at the 1-loop level. We present an effective Lagrangian which incorporates these tan(beta)-enhanced Yukawa couplings and which enables us to study their effect on singlet Higgs-boson phenomenology within the context of both the mnSSM and the NMSSM. In particular, we find that the loop-induced coupling can be a significant effect for the singlet pseudoscalar, and may dominate its decay modes. Further implications of the tan(beta)-enhanced Yukawa couplings for the phenomenology of the singlet Higgs bosons are briefly discussed.

24 pages, 6 eps figures, LaTeX, accepted for publication in Physical Review D

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Cited by in corpus (10)

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• Dark Matter in the Singlet Extension of MSSM: Explanation of Pamela and Implication on Higgs Phenomenology
• Singlet extension of the MSSM as a solution to the small cosmological scale anomalies
• ${\rm Y}\to \gamma A_1$ in the NMSSM at large tan beta
• Dark matter in the MSSM and its singlet extension
• SUSY Dark Matter In Light Of CDMS/XENON Limits
• Tan(beta) enhanced Yukawa couplings for supersymmetric Higgs singlets at one loop