Tribimaximal Mixing, Leptogenesis, and theta13
High Energy Physics - Phenomenology
2010-05-27 v2
Abstract
We show that seesaw models based on flavor symmetries (such as A_4 and Z_7 X Z_3) which produce exact tribimaximal neutrino mixing, also imply a vanishing leptogenesis asymmetry. We show that higher order symmetry breaking corrections in these models can give a non-zero leptogenesis asymmetry and generically also give deviations from tribimaximal mixing and a non-zero theta13 >~ 10^(-2)
Keywords
Cite
@article{arxiv.0807.4176,
title = {Tribimaximal Mixing, Leptogenesis, and theta13},
author = {Elizabeth E. Jenkins and Aneesh V. Manohar},
journal= {arXiv preprint arXiv:0807.4176},
year = {2010}
}
Comments
Results generalized to include flavored leptogenesis