Sfermion decays into singlets and singlinos in the NMSSM

Abstract

We investigate how the addition of the singlet Higgs field in the NMSSM changes the sfermion branching ratios as compared to the MSSM. We concentrate in particular on the third generation, discussing decays of the heavier stop, sbottom or stau into the lighter mass eigenstate plus a scalar or pseudoscalar singlet Higgs. We also analyse stop, sbottom and stau decays into singlinos. It turns out that the branching ratios of these decays can be large, markedly influencing the sfermion phenomenology in the NMSSM. Moreover, we consider decays of first and second generation sfermions into singlinos.

arXiv comment10 pages, 4 figures; a few additional remarks on the model, version to be published

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• Naughty or Nice? The Role of the `N' in the Natural NMSSM for the LHC
• Sbottoms of Natural NMSSM at the LHC