Leptogenesis without violation of B-L
High Energy Physics - Phenomenology
2009-12-14 v2
Abstract
We study the possibility of generating the observed baryon asymmetry via leptogenesis in the decay of heavy Standard Model singlet fermions which carry lepton number, in a framework without Majorana masses above the electroweak scale. Such scenario does not contain any source of total lepton number violation besides the Standard Model sphalerons, and the baryon asymmetry is generated by the interplay of lepton flavour effects and the sphaleron decoupling in the decay epoch.
Keywords
Cite
@article{arxiv.0909.3518,
title = {Leptogenesis without violation of B-L},
author = {M. C. Gonzalez-Garcia and J. Racker and N. Rius},
journal= {arXiv preprint arXiv:0909.3518},
year = {2009}
}
Comments
V2 (published version): 21 pages, 4 figures. Some explanations have been added