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arXiv · hep-ph/9904310

Matter Antimatter Asymmetry and Neutrino Properties

W. Buchmuller·M. Plumacher
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Abstract

The cosmological baryon asymmetry can be explained as remnant of heavy Majorana neutrino decays in the early universe. We study this mechanism for two models of neutrino masses with a large ν_μ-ν_τmixing angle which are based on the symmetries SU(5) x U(1)_F and SU(3)_c x SU(3)_L x SU(3)_R x U(1)_F, respectively. In both cases B-L is broken at the unification scale Λ_{GUT}. The models make different predictions for the baryogenesis temperature and the gravitino abundance.

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W. Buchmuller, M. Plumacher. 1999-04-12. Matter Antimatter Asymmetry and Neutrino Properties. https://doi.org/10.1016/s0370-1573(99)00057-5

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