Finite quantum corrections to the tribimaximal neutrino mixing

Abstract

We calculate finite quantum corrections to the tribimaximal neutrino mixing pattern V_TB in three generic classes of neutrino mass models. We show that three flavor mixing angles can all depart from their tree-level results described by V_TB, among which θ_12 is most sensitive to such quantum effects, and the Dirac CP-violating phase can radiatively arise from two Majorana CP-violating phases. This theoretical scheme offers a new way to understand why θ_13 is naturally small and how three CP-violating phases are presumably correlated.

arXiv commentv1: 9 pages; v2: added Appendix and discussion about RGEs, deleted one figure and updated the other figures, accepted for publication in Phys. Lett. B

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Cited by in corpus (10)

• Getting at large theta_13 with almost maximal theta_23 from tri-bimaximal mixing
• The T2K Indication of Relatively Large theta_13 and a Natural Perturbation to the Democratic Neutrino Mixing Pattern
• Implications of the Daya Bay observation of θ_{13} on the leptonic flavor mixing structure and CP violation
• A Shift from Democratic to Tri-bimaximal Neutrino Mixing with Relatively Large theta_{13}
• Viability of the exact tri-bimaximal mixing at M_{GUT} in SO(10)
• Large θ_13 from finite quantum corrections in quasi-degenerate neutrino mass spectrum
• Quasi-Dirac neutrinos in a model with local $B-L$ symmetry
• Is θ_{13}^{PMNS} correlated with θ_{23}^{PMNS} or not?
• Theoretical Overview on the Flavor Issues of Massive Neutrinos
• Non-zero θ_13 in models for hierarchical neutrino mass spectrum