Tribimaximal mixing in neutrino mass matrices with texture zeros or vanishing minors

Abstract

We study the existence of one/two texture zeros or one/two vanishing minors in the neutrino mass matrix with $\mu \tau$ symmetry. In the basis where the charged lepton mass matrix and the Dirac neutrino mass matrix are diagonal, the one/two zeros or one/two vanishing minors in the right-handed Majorana mass matrix having $\mu \tau$ symmetry will propagate via seesaw mechanism as one/two vanishing minors or one/two texture zeros in the neutrino mass matrix with $\mu \tau$ symmetry respectively. It is found that only five such texture structures of the neutrino mass matrix are phenomenologically viable. For tribimaximal mixing, these texture structures reduce the number of free parameters to one. Interesting predictions are obtained for the effective Majorana mass $M_{ee}$, the absolute mass scale and the Majorana-type CP violating phases.

arXiv commentTo appear in Mod. Phys. Letts. A

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• Neutrino mixing matrices with relatively large ${\theta }_{13}$ and with texture one-zero
• Neutrino Mass Matrices with Two Equalities Between the Elements or Cofactors
• Neutrino mass textures with one vanishing minor and two equal cofactors
• Neutrino Mass Matrices with Two Vanishing Elements/Cofactors
• Parallel Texture Structures with Cofactor Zeros in Lepton Sector
• Hybrid Textures of the Right-Handed Majorana Neutrino Mass Matrix
• Charged Lepton Corrections to Scaling Neutrino Mixing
• Neutrino mass matrices with one texture equality and one vanishing neutrino mass
• Parallel Lepton Mass Matrices with Texture and Cofactor Zeros
• New Hybrid Textures for Neutrino Mass Matrices
• Four Zero Texture Fermion Mass Matrices in SO(10) GUT
• Neutrino Phenomenology and Dark matter in an $A_4$ flavour extended B-L model
• Neutrino mass matrices with three or four vanishing cofactors and non diagonal charged lepton sector
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• Embedding Generalized CP Symmetry in One Zero Texture Neutrino Mass Models