Neutrino oscillations in the early universe. Resonant case
High Energy Physics - Phenomenology
2009-11-07 v1
Abstract
Lepton asymmetry generated in the early universe by neutrino oscillations into sterile partners is calculated. Kinetic equations are analytically reduced to a simple form that permits an easy numerical treatment. Asymptotic values of the asymmetry are at the level of 0.2-0.3 and are reasonably close to those obtained by other groups, though the approach to asymptotics in some cases is noticeably slower. No chaoticity is observed.
Cite
@article{arxiv.hep-ph/0102125,
title = {Neutrino oscillations in the early universe. Resonant case},
author = {A. D. Dolgov},
journal= {arXiv preprint arXiv:hep-ph/0102125},
year = {2009}
}
Comments
25 pages, latex