Leptogenesis in SO(10) models with a left-right symmetric seesaw mechanism

Details Leptogenesis in SO(10) models with a left-right symmetric seesaw mechanism Leptogenesis in SO(10) models with a left-right symmetric seesaw mechanism

2007-10-31

arxiv.org/abs/0710.5802v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Submitted for the SUSY07 proceedings, 4 pages, 9 figures

Scientific paper

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.

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