The charged lepton mass matrix and non-zero ${\theta }_{13}$ with TeV scale New Physics

Abstract

We provide an explicit structure of the charged lepton mass matrix which is 2-3 symmetric except for a single breaking of this symmetry by the muon mass. We identify a flavor symmetric limit for the mass matrices where the first generation is decoupled from the other two in the charged lepton sector while in the neutrino sector the third generation is decoupled from the first two generations. The leptonic mixing in the symmetric limit can be, among other structures, the bi-maximal (BM) or the tri-bimaximal (TBM) mixing. Symmetry breaking effects are included both in the charged lepton and the neutrino sector to produce corrections to the leptonic mixing and explain the recent ${\theta }_{13}$ measurements. A model that extends the SM by three right handed neutrinos, an extra Higgs doublet, and two singlet scalars is introduced to generate the leptonic mixing.

28 pages, 24 figures. arXiv admin note: substantial text overlap with arXiv:1111.3072

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• Consistency of perturbed Tribimaximal, Bimaximal and Democratic mixing with Neutrino mixing data
• Is θ_{13}^{PMNS} correlated with θ_{23}^{PMNS} or not?
• Trimaximal-Cabibbo neutrino mixing: A parametrization in terms of deviations from tri-bimaximal mixing
• Model independent Analysis of Dirac CP Violating Phase for some well known mixing scenarios
• A Systematic Analysis of Perturbations for Hexagonal Mixing Matrix
• Tau neutrino as a probe of nonstandard interactions via charged Higgs and $W^{\prime }$ contribution