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arXiv · 1011.1371

Neutrino phenomenology and stable dark matter with A4

D. Meloni·S. Morisi·E. Peinado
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Abstract

We present a model based on the A4 non-abelian discrete symmetry leading to a predictive five-parameter neutrino mass matrix and providing a stable dark matter candidate. We found an interesting correlation among the atmospheric and the reactor angles which predicts theta_23 ~ pi/4 for very small reactor angle and deviation from maximal atmospheric mixing for large theta_13. Only normal neutrino mass spectrum is possible and the effective mass entering the neutrinoless double beta decay rate is constrained to be |m_ee| > 4 10^{-4} eV.

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D. Meloni, S. Morisi, E. Peinado. 2010-11-05. Neutrino phenomenology and stable dark matter with A4. https://doi.org/10.1016/j.physletb.2011.02.019

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