Shoaib Munir, Leszek Roszkowski, Sebastian Trojanowski
We propose a scenario in the Next-to-Minimal Supersymmetric Standard Model in which its both lightest scalar and pseudoscalar Higgs bosons have masses around 125 GeV. The pseudoscalar can produce an enhanced gamma.gamma decay rate due to light higgsino-like charginos in its effective one-loop coupling to two photons. In that case, it should contribute to the gamma.gamma rate measured at the LHC, but not to the WW/ZZ decay modes. Thus a discrepancy should be observed between the rates in these two decay channels through precise measurements. However, the pseudoscalar will stay hidden behind the SM-like scalar Higgs boson in the dominant gluon fusion production mode and in order for it to be observable the bbh production mode has to be considered. We analyze the constrained NMSSM with non-universal Higgs sector parameters, and identify regions in its parameter space where the lightest pseudoscalar with mass around 125 GeV and a measurable gamma.gamma rate in the bbh mode can be obtained.
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http://arxiv.org/abs/1305.0591
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