Neutrino masses, cosmological bound and four zero Yukawa textures

Abstract

Four zero neutrino Yukawa textures in a specified weak basis, combined with $\mu \tau$ symmetry and type-I seesaw, yield a highly constrained and predictive scheme. Two alternately viable $3\times 3$ light neutrino Majorana mass matrices $m_{\nu A}/m_{\nu B}$ result with inverted/normal mass ordering. Neutrino masses, Majorana in character and predicted within definite ranges with laboratory and cosmological inputs, will have their sum probed cosmologically. The rate for $0\nu \beta \beta$ decay, though generally below the reach of planned experiments, could approach it in some parameter region. Departure from $\mu \tau$ symmetry due to RG evolution from a high scale and consequent CP violation, with a Jarlskog invariant whose magnitude could almost reach $6\times 10^{-3}$, are explored.

Published version

References in corpus (8)

• Massive neutrinos and cosmology
• Upper Bound of 0.28 eV on the Neutrino Masses from the Largest Photometric Redshift Survey
• Four Zero Neutrino Yukawa Textures in the Minimal Seesaw Framework
• Phenomenological consequences of four zero neutrino Yukawa textures
• Radiatively broken symmetries of nonhierarchical neutrinos
• Soft breaking of $L_{\mu }-L_{\tau }$ symmetry: Light neutrino spectrum and Leptogenesis
• Determining neutrino properties using future galaxy redshift surveys
• Looking for Leptonic CP Violation with Neutrinos

Cited by in corpus (11)

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• Maximal Zero Textures in Linear and Inverse Seesaw
• Probing texture zeros with scaling ansatz in inverse seesaw
• Evaluation of the Majorana Phases of a General Majorana Neutrino Mass Matrix: Testability of hierarchical Flavour Models
• Maximal zero textures of the inverse seesaw with broken $\mu \tau$ symmetry
• Confronting Four Zero Neutrino Yukawa Textures with $N_2^{}$-dominated Leptogenesis
• A minimal axion model for mass matrices with five texture-zeros
• Neutrino Yukawa textures within type-I see-saw