Deviations to $\mu -\tau$ symmetry in a cobimaximal scenario

Abstract

Within the different patterns of the neutrino mixing matrix, the cobimaximal mixing remains a plausible possibility for understanding the flavor structure of neutrinos as it is consistent with current experimental data. Such a pattern is related to a concrete form of the mass matrix, displaying a $\mu -\tau$ reflection symmetry, which has motivated many theoretical investigations in recent years. In this paper, we discuss the effects of the Majorana phases over a $\mu -\tau$ symmetric mass matrix obtained from a cobimaximal mixing matrix. We investigate how these phases could be restricted through deviations from the symmetric scenario and the most precise determinations of the mixing parameters. Some of our relations could be tested with future results.

9 pages, 2 figures. Version accepted for publication in NPB

References in corpus (6)

• 2020 Global reassessment of the neutrino oscillation picture
• Search for Neutrinoless Double-Beta Decay in ${}^{136}$Xe with EXO-200
• Limit on Neutrinoless ββ Decay of Xe-136 from the First Phase of KamLAND-Zen and Comparison with the Positive Claim in Ge-76
• Cobimaximal Neutrino Mixing from $A_4$ and its Possible Deviation
• Deviations to Tri-Bi-Maximal mixing in the limit of $\mu -\tau$ symmetry
• Restricting Majorana phases in the Tri-Bi-Maximal limit

Cited by in corpus (1)

• Approximate magic symmetry in a cobimaximal scenario of Majorana neutrinos