(Z_2)^3 Symmetry of the Tripartite Model

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.

Substantial changes: enlarging the paper and changing the title. 11 pages

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Cited by in corpus (6)

• The (Z_2)^3 symmetry of the non-tri-bimaximal pattern for the neutrino mass matrix
• Form Invariance and Symmetry in the Neutrino Mass Matrix
• Neutrino Mixing and Leptogenesis in $\mu -\tau$ Symmetry
• The U(1) symmetry of the non-tribimaximal pattern in the degenerate mass spectrum case of the neutrino mass matrix
• New possibilities of hybrid texture of neutrino mass matrix
• Rotated $\mu$\,--\,$\tau$ Symmetry for One Generic Neutrino Mixing Angle: An analytical Study