Neutrino Mixing Angles from Texture Zeros of the Lepton Mass Matrices

TL;DR

This paper investigates how specific zero patterns in lepton mass matrices can explain observed neutrino mixing angles and explores implications for neutrino mass spectrum and decay processes.

Contribution

It demonstrates that three-zero textures in lepton mass matrices can naturally reproduce neutrino mixing angles consistent with recent data.

Findings

Neutrino mixing angles are compatible with three-zero textures.

Implications for neutrino mass hierarchy and CP violation are discussed.

Predictions for neutrinoless double-beta decay are provided.

Abstract

Taking into account the latest neutrino oscillation data, we study texture zeros of the lepton mass matrices. Assuming the Dirac neutrino mass matrix M_D, the charged-lepton mass matrix M_l and the mass matrix of heavy right-handed Majorana neutrinos M_R to have three texture zeros, we show that the observed neutrino mixing angles can naturally be obtained. The phenomenological implications for the neutrino mass spectrum, the CP-violating phases, the tritium beta decay and the neutrinoless double-beta decay are explored.