Spontaneous Leptogenesis
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
I propose a new mechanism for baryogenesis, in which the out-of-equilibrium condition is not neccessary. When the electroweak symmetry is broken spontaneously, left-handed neutrinos may get Majorana masses containing violating phases. This induces a lepton asymmetry spontaneously, which is then converted to a baryon asymmetry in the presence of the sphaleron field.
Keywords
Cite
@article{arxiv.hep-ph/9609493,
title = {Spontaneous Leptogenesis},
author = {Utpal Sarkar},
journal= {arXiv preprint arXiv:hep-ph/9609493},
year = {2007}
}
Comments
8 pages (including 1 eps file)