Neutrino Masses, Baryogenesis and Bilinear R-parity Violation

Abstract

We consider the impact of cosmological $B-L$ constraints on supersymmetric standard models with bilinear breaking of R-parity. In order to avoid erasing any primordial baryon or lepton asymmetry above the electroweak scale, $B-L$ violation for at least one generation should be sufficiently small. Working in the context of models with non--universal soft supersymmetry breaking masses, we show how the above cosmological constraint can be satisfied while simultaneously providing a neutrino mass matrix required by current data.

15pages, revtex4, 2figures

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Cited by in corpus (3)

• Strong dark matter constraints on GMSB models
• Neutrinos in Anomaly Mediated Supersymmetry Breaking with R-Parity Violation
• CP violation in bilinear R-parity violation and its consequences for the early universe