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arXiv · 0909.0828

(Z_2)^3 Symmetry of the Tripartite Model

E. I. Lashin·E. Malkawi·S. Nasri·N. Chamoun
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Abstract

We derive in a simple way the $(Z_2)^3$ symmetry which characterizes uniquely the phenomenologically successful tripartite form leading to the tribimaximal mixing in the neutrino mass matrix. We impose this symmetry in a setup including the charged leptons and find that it can accommodate all the possible patterns of lepton masses in the framework of type-I and type-II seesaw mechanisms. We also discuss the possibility of generating enough baryon asymmetry through lepton-lepton asymmetry.

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E. I. Lashin, E. Malkawi, S. Nasri, N. Chamoun. 2009-12-12. (Z_2)^3 Symmetry of the Tripartite Model. https://doi.org/10.1103/physrevd.80.115013

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