Leptogenesis and CPT violation

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Aug 2011Embargo end date: 01 Dec 2010 English Publisher:Elsevier BVJournal:Physics Letters B, volume 702, pages 398-401 (issn: 0370-2693,

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Authors: Ho, Chiu Man;

doi: 10.1016/j.physletb.2011.07.035 , 10.48550/arxiv.1012.1053

arXiv: 1012.1053

Leptogenesis and CPT violation

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Abstract

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.

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

Related Organizations

Vanderbilt University
United States

Keywords

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Astrophysics - Cosmology and Nongalactic Astrophysics

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