Neutrino Mixings in SO(10) with Type II Seesaw and theta_{13}

Details Neutrino Mixings in SO(10) with Type II Seesaw and theta_{13} Neutrino Mixings in SO(10) with Type II Seesaw and theta_{13}

2011-07-12

arxiv.org/abs/1107.2378v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 4 figures, 2 tables; typos corrected in Eq. (4) and Table II

Scientific paper

We analyze a class of supersymmetric SO(10) grand unified theories with type II seesaw for neutrino masses, where the contribution to PMNS matrix from the neutrino sector has an exact tri-bi-maximal (TBM) form, dictated by a broken S_4 symmetry. The Higgs fields that determine the fermion masses are two 10 fields and one 126 field, with the latter simultaneously contributing to neutrino as well as charged fermion masses. Fitting charged fermion masses and the CKM mixings lead to corrections to the TBM mixing that determine the final PMNS matrix with the predictions theta_{13} ~ 4-6 degrees and the Dirac CP phase to be between -10 and +15 degrees. We also show correlations between various mixing angles which can be used to test the model.

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