Parallel hybrid textures of lepton mass matrices

Abstract

We analyse the parallel hybrid texture structures in the charged lepton and the neutrino sector. These parallel hybrid texture structures have physical implications as they cannot be obtained from arbitrary lepton mass matrices through weak basis transformations. The total sixty parallel hybrid texture structures can be grouped into twelve classes, and all the hybrid textures in the same class have identical physical implications. We examine all the twelve classes under the assumption of non-factorizable phases in the neutrino mass matrix. Five out of the total twelve classes are found to be phenomenologically disallowed. We study the phenomenological implications of the allowed classes for 1-3 mixing angle, Majorana and Dirac-type $CP$ violating phases. Interesting constraints on effective Majorana mass are obtained for all the allowed classes.

Physical Review D (To appear)

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Cited by in corpus (18)

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• Zero Textures of the Neutrino Mass Matrix from Cyclic Family Symmetry
• Near Maximal Atmospheric Neutrino Mixing in Neutrino Mass Models with Two Texture Zeros
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• Parallel Lepton Mass Matrices with Texture and Cofactor Zeros
• New Hybrid Textures for Neutrino Mass Matrices
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• Neutrino mass matrices with three or four vanishing cofactors and non diagonal charged lepton sector
• Phenomenology of Trimaximal mixing with one texture equality
• Revisiting the two-zero texture Majorana neutrino mass matrix