Leptogenesis in SO(10) models with a left-right symmetric seesaw mechanism
High Energy Physics - Phenomenology
2007-11-01 v1
Abstract
We study leptogenesis in supersymmetric SO(10) models with a left-right symmetric seesaw mechanism, including flavour effects and the contribution of the next-to-lightest right-handed neutrino. Assuming M_D = M_u and hierarchical light neutrino masses, we find that successful leptogenesis is possible for 4 out of the 8 right-handed neutrino mass spectra that are compatible with the observed neutrino data. An accurate description of charged fermion masses appears to be an important ingredient in the analysis.
Keywords
Cite
@article{arxiv.0710.5802,
title = {Leptogenesis in SO(10) models with a left-right symmetric seesaw mechanism},
author = {A. Abada and P. Hosteins and F. -X. Josse-Michaux and S. Lavignac},
journal= {arXiv preprint arXiv:0710.5802},
year = {2007}
}
Comments
Submitted for the SUSY07 proceedings, 4 pages, 9 figures