The Echo 12-23 Texture: A Novel Flavour Paradigm for Neutrinos

TL;DR

This paper introduces a new neutrino flavor model based on the Echo 12-23 Texture, linking symmetries to neutrino mass ordering and flavor dynamics, with testable low-energy predictions.

Contribution

It presents a novel flavor-guided model that realizes the Echo 12-23 Texture in the neutrino mass matrix, connecting symmetries to neutrino properties.

Findings

Provides insights into neutrino mass ordering.

Offers predictions for low-energy neutrino observables.

Links flavor symmetries to neutrino mass textures.

Abstract

We construct a flavour guided model that realises the distinctive Echo 12-23 Texture in the neutrino mass matrix through a non-trivial interplay of symmetries. While the model accounts for charged lepton mass hierarchy, the texture offers interesting insights specifically into neutrino mass ordering and flavour dynamics. With clear imprints on low energy observables, the framework provides a minimal yet testable path toward understanding the origin of neutrino properties.