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arXiv · 1311.2188

Partial $μ-τ$ Textures and Leptogenesis

Cherif Hamzaoui·Salah Nasri·Manuel Toharia
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Abstract

Motivated by the recent results from Daya Bay, Reno and Double Chooz Collaborations, we study the consequences of small departures from exact $μ-τ$ symmetry in the neutrino sector, to accommodate a non-vanishing value of the element $V_{e3}$ from the leptonic mixing matrix. Within the see-saw framework, we identify simple patterns of Dirac mass matrices that lead to approximate $μ-τ$ symmetric neutrino mass matrices, which are consistent with the neutrino oscillation data and lead to non-vanishing mixing angle $V_{e3}$ as well as precise predictions for the CP violating phases. We also show that there is a transparent link between neutrino mixing angles and see-saw parameters, which we further explore within the context of leptogenesis as well as double beta decay phenomenology.

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Cherif Hamzaoui, Salah Nasri, Manuel Toharia. 2014-05-10. Partial $μ-τ$ Textures and Leptogenesis. https://doi.org/10.1103/physrevd.89.073019

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