Trimaximal neutrino mixing from scotogenic $A_4$ family symmetry

TL;DR

This paper introduces a lepton flavor model based on $A_4$ symmetry that naturally produces trimaximal neutrino mixing and links neutrino mass generation to dark matter via the scotogenic mechanism.

Contribution

It presents a novel $A_4$ flavor symmetry framework that derives trimaximal neutrino mixing and connects neutrino masses with dark matter in a simple, testable model.

Findings

Predicts specific neutrino mixing angles and CP violation phases.

Establishes a link between neutrino mass and dark matter.

Provides testable predictions for future experiments.

Abstract

We propose a flavour theory of leptons implementing an $A_4$ family symmetry. Our scheme provides a simple way to derive trimaximal neutrino mixing from first principles, leading to simple and testable predictions for neutrino mixing and CP violation. Dark matter mediates neutrino mass generation, as in the simplest scotogenic model.