Viability of the exact tri-bimaximal mixing at M_{GUT} in SO(10)

Details Viability of the exact tri-bimaximal mixing at M_{GUT} in SO(10) Viability of the exact tri-bimaximal mixing at M_{GUT} in SO(10)

2011-05-30

arxiv.org/abs/1105.5943v2

JHEP09(2011)137; JHEP 1109:137,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

Numerical analysis updated in view of the T2K and MINOS results. Published version

Scientific paper

10.1007/JHEP09(2011)137

General structures of the charged lepton and the neutrino mixing matrices leading to tri-bimaximal leptonic mixing are determined. These are then integrated into an SO(10) model within which detailed fits to fermion masses and mixing angles are given. It is shown that one can obtain excellent fits to all the fermion masses and quark mixing angles keeping tri-bimaximal leptonic mixing intact. Different perturbations to the basic structure are considered and those which can or which cannot account for the recent T2K and MINOS results on the reactor mixing angle $\theta_{13}^l$ are identified.

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