Texture zeros in neutrino mass matrix

TL;DR

This paper discusses the role of texture zeros in the neutrino mass matrix and their relation to symmetries, especially in light of recent experimental findings on lepton mixing angles.

Contribution

It reviews the significance of texture zeros in neutrino mass matrices and their connection to abelian symmetries, considering recent experimental developments.

Findings

Texture zeros are a key tool in understanding neutrino mass structures.

Recent measurements of lepton mixing angles impact the viability of certain symmetry models.

The study highlights the importance of texture zeros in model building for neutrino physics.

Abstract

The Standard Model does not explain the hierarchy problem. Before the discovery of nonzero lepton mixing angle {\theta}13 high hopes in explanation of the shape of the lepton mixing matrix were combined with non abelian symmetries. Nowadays, assuming one Higgs doublet, it is unlikely that this is still valid. Texture zeroes, that are combined with abelian symmetries, are intensively studied. The neutrino mass matrix is a natural way to study such symmetries.