Scale of Leptogenesis
High Energy Physics - Phenomenology
2011-09-13 v1
Abstract
We study the scale at which one can generate the lepton asymmetry of the universe which could then get converted to a baryon asymmetry during the electroweak phase transition. We consider the possibility that the Yukawa couplings are small but sufficiently large to generate enough lepton asymmetry. This forbids the possibility of the breaking scale being the electroweak scale.
Keywords
Cite
@article{arxiv.hep-ph/9804261,
title = {Scale of Leptogenesis},
author = {Jacqueline Faridani and Smaragda Lola and Patrick J. O'Donnell and Utpal Sarkar},
journal= {arXiv preprint arXiv:hep-ph/9804261},
year = {2011}
}
Comments
13 pages, 7 figures, plain Latex