Majorana neutrinos and non minimal lepton mass textures

TL;DR

This paper investigates how recent measurements of the leptonic mixing angle θ13 influence the structure of lepton mass matrices assuming neutrinos are Majorana particles, exploring various mass hierarchy scenarios.

Contribution

It analyzes numerous non-minimal lepton mass textures for compatibility with recent mixing data, focusing on implications for neutrino mass and Majorana mass predictions.

Findings

Certain mass textures are compatible with experimental data.

Predictions for the lightest neutrino mass vary across scenarios.

Implications for the effective Majorana mass <m_{ee}> are discussed.

Abstract

In the light of the recent measurement of the leptonic mixing angle $\theta_{13}$, implications of the latest mixing data have been investigated for non-minimal textures of lepton mass matrices assuming the neutrinos to be Majorana like. Large number of possible texture specific lepton mass matrices have been examined for their compatibility with the lepton mixing data in the case of normal hierarchy, inverted hierarchy and degenerate scenario of neutrino masses. Specifically, apart from other phenomenological quantities the implications of the lepton mixing angle $\theta_{13}$ have been investigated on the lightest neutrino mass as well as the effective Majorana mass $<m_{ee}>$.