Baryogenesis Through Mixing of Heavy Majorana Neutrinos

Details Baryogenesis Through Mixing of Heavy Majorana Neutrinos Baryogenesis Through Mixing of Heavy Majorana Neutrinos

1996-07-15

arxiv.org/abs/hep-ph/9607310v1

Phys.Lett. B389 (1996) 693-699

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages (including 4 eps files)

Scientific paper

10.1016/S0370-2693(96)01337-8

A mechanism is presented, in which the mixing of right handed heavy Majorana neutrinos creates a $CP-$asymmetric universe. When these Majorana neutrinos subsequently decay more leptons than anti-leptons are produced. The lepton asymmetry created by this new mechanism can exceed by a few orders of magnitude any lepton asymmetry originating from direct decays. The asymmetry is finally converted into a baryon asymmetry during the electroweak phase transition.

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