Nearly Tri-Bimaximal Neutrino Mixing and CP Violation

Details Nearly Tri-Bimaximal Neutrino Mixing and CP Violation Nearly Tri-Bimaximal Neutrino Mixing and CP Violation

2002-04-04

arxiv.org/abs/hep-ph/0204049v1

Phys.Lett.B533:85-93,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex 10 pages. Phys. Lett. B (in press)

Scientific paper

10.1016/S0370-2693(02)01649-0

We point out two simple but instructive possibilities to modify the tri-bimaximal neutrino mixing ansatz, such that leptonic CP violation can naturally be incorporated into the resultant scenarios of nearly tri-bimaximal flavor mixing. The consequences of two new ansaetze on solar, atmospheric and reactor neutrino oscillations are analyzed. We also discuss an interesting approach to construct lepton mass matrices under permutation symmetry, from which one may derive another nearly tri-bimaximal neutrino mixing scenario with no intrinsic CP violation in neutrino oscillations.

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