Baryogenesis from mixed particle decays

Details Baryogenesis from mixed particle decays Baryogenesis from mixed particle decays

1996-11-26

arxiv.org/abs/hep-ph/9611425v1

Phys.Lett. B399 (1997) 113-118

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex file, 14 pgs. two figures

Scientific paper

10.1016/S0370-2693(97)00287-6

We consider the $CP$ violating asymmetries produced in the decay of heavy particles, studying the effects of heavy particle mixing for arbitrary mass splittings. A considerable enhancement of the asymmetries is achieved when the masses of the mixed states are comparable, and the enhancement is maximal for mass splittings of the order of the widths of the decaying particles. We apply the results to the particular case of heavy scalar neutrino decays relevant for leptogenesis scenarios.

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