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arXiv · 0807.4176

Tribimaximal Mixing, Leptogenesis, and theta13

Elizabeth E. Jenkins·Aneesh V. Manohar
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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)

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Elizabeth E. Jenkins, Aneesh V. Manohar. 2008-08-12. Tribimaximal Mixing, Leptogenesis, and theta13. https://doi.org/10.1016/j.physletb.2008.08.028

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