Leptogenesis and CPT Violation
High Energy Physics - Phenomenology
2011-09-28 v3 Cosmology and Nongalactic Astrophysics
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.
Keywords
Cite
@article{arxiv.1012.1053,
title = {Leptogenesis and CPT Violation},
author = {Chiu Man Ho},
journal= {arXiv preprint arXiv:1012.1053},
year = {2011}
}
Comments
5 pages, v3: version to appear in PLB with improved discussions