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arXiv · 0803.4330

Rare Decays with a Light CP-Odd Higgs Boson in the NMSSM

Xiao-Gang He·Jusak Tandean·G. Valencia
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Abstract

We have previously proposed a light pseudoscalar Higgs boson in the next-to-minimal supersymmetric standard model (NMSSM), the A_1^0, as a candidate to explain the HyperCP observations in Sigma^+ -> p mu^+ mu^-. In this paper we calculate the rates for several other rare decay modes that can help confirm or refute this hypothesis. The first modes we evaluate are K_L -> pi pi A_1^0, which are interesting because they are under study by the KTeV Collaboration. We next turn to eta -> pi pi A_1^0, which are interesting because they are independent of the details of the flavor-changing sector of the NMSSM and may be accessible at DAPhNE. For completeness, we also evaluate Omega^- -> Xi^- A_1^0.

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Xiao-Gang He, Jusak Tandean, G. Valencia. 2008-03-30. Rare Decays with a Light CP-Odd Higgs Boson in the NMSSM. https://doi.org/10.1088/1126-6708%2F2008%2F06%2F002

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