Majorana Neutrino Mass Matrices with a Texture Zero and a Cofactor Zero under Current Experimental Texts

2013/11/27 by Weijian Wang, Wang, Weijian, Dong-Jiang Zhang +1
Chemistry · Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Molecular Spectroscopy and Structure #Neutrino Physics Research

paper · pdf · doi:10.48550/arxiv.1311.6944

openalex publication_date 2013/11/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The Majorana neutrino mass textures with a texture zero and a vanishing cofactor are reconsidered in the light of current experimental results. A numerical and systematic analysis is carried out for all viable patterns. In particular, we focus on the phenomenological implication of correlations between three mixing angle (especially for θ₂₃), Dirac CP-violating phase δ, the effective Majorana neutrino mass m_ee. We demonstrated that the correlations between these variables play an important role in the model selection and can be measured in future long-baseline oscillation and neutrinoless double beta decay. Among the six viable patterns, it is the type-III with normal hierarchy and type-VI with inverted hierarchy that have the parameter space where the atmospheric neutrino mixing angle θ₂₃ is less then maximal and the Dirac CP-violating phase covers its best-fit value.

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