Leptogenesis and CPT Violation

Details Leptogenesis and CPT Violation Leptogenesis and CPT Violation

2010-12-05

arxiv.org/abs/1012.1053v3

Phys.Lett.B702:398-401,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, v3: version to appear in PLB with improved discussions

Scientific paper

10.1016/j.physletb.2011.07.035

We construct a model in which neutrinos and anti-neutrinos acquire the same mass but slightly different energy dispersion relations.Despite CPT violation, spin-statistics is preserved. We find that leptogenesis can be easily explained within this model, without upsetting the solar, atmospheric and reactor neutrino data. Leptogenesis occurs without lepton number violation and the non-equilibrium condition. We consider only three active Dirac neutrinos, and no new particles or symmetries are introduced.

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