${\theta }_{13}$, $\mu \tau$ symmetry breaking and neutrino Yukawa textures

Abstract

Within the type-I seesaw and in the basis where charged lepton and heavy neutrino mass matrices are real and diagonal, $\mu \tau$ symmetric four and three zero neutrino Yukawa textures are perturbed by lowest order $\mu \tau$ 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 ${\theta }_{13}$ in the observed range, provided all the light neutrinos have an inverted mass ordering.

20 pages, 8 figures, published version with considerable elaboration

References in corpus (8)

• Observation of electron-antineutrino disappearance at Daya Bay
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Global status of neutrino oscillation parameters after Neutrino-2012
• Four Zero Neutrino Yukawa Textures in the Minimal Seesaw Framework
• Phenomenological consequences of four zero neutrino Yukawa textures
• Radiatively broken symmetries of nonhierarchical neutrinos
• Seesaw mechanism with four texture zeros in the neutrino Yukawa matrix
• Looking for Leptonic CP Violation with Neutrinos

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• Maximal zero textures of the inverse seesaw with broken $\mu \tau$ symmetry
• Neutrino Mass Textures and Partial $\mu$-$\tau$ Symmetry
• Are the small neutrino oscillation parameters all related?
• Relating small neutrino masses and mixing
• Fermion Masses and Mixing in General Warped Extra Dimensional Models
• Ameliorating the popular lepton mixings with A4 symmetry: A see-saw model for realistic neutrino masses and mixing
• Neutrino Mixing and Leptogenesis in $\mu -\tau$ Symmetry
• Partial $\mu -\tau$ Textures and Leptogenesis
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