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arXiv · 1210.5328

$θ_{13}$, $μτ$ symmetry breaking and neutrino Yukawa textures

Biswajit Adhikary·Ambar Ghosal·Probir Roy
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Abstract

Within the type-I seesaw and in the basis where charged lepton and heavy neutrino mass matrices are real and diagonal, $μτ$ symmetric four and three zero neutrino Yukawa textures are perturbed by lowest order $μτ$ symmetry breaking terms. These perturbations are taken to be the {\it most general ones for those textures}. For quite small values of those symmetry breaking parameters, permitting a lowest order analysis, current best-fit ranges of neutrino mass squared differences and mixing angles are shown to be accommodable, including a value of $θ_{13}$ in the observed range, provided all the light neutrinos have an inverted mass ordering.

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Biswajit Adhikary, Ambar Ghosal, Probir Roy. 2013-09-16. $θ_{13}$, $μτ$ symmetry breaking and neutrino Yukawa textures. https://doi.org/10.1142/s0217751x13501182

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