Warped flavor symmetry predictions for neutrino physics

TL;DR

This paper proposes a five-dimensional warped model with a flavor symmetry that predicts neutrino mixing parameters and CP violation, offering testable predictions for upcoming experiments.

Contribution

It introduces a novel warped extra-dimensional model with a $(27)$ flavor symmetry that constrains neutrino mixing and CP violation predictions.

Findings

Predicts neutrino mixing angles and CP phase with only two parameters

Provides a good fit to CKM matrix

Testable predictions for future oscillation experiments

Abstract

A realistic five-dimensional warped scenario with all standard model fields propagating in the bulk is proposed. Mass hierarchies would in principle be accounted for by judicious choices of the bulk mass parameters, while fermion mixing angles are restricted by a $\Delta(27)$ flavor symmetry broken on the branes by flavon fields. The latter gives stringent predictions for the neutrino mixing parameters, and the Dirac CP violation phase, all described in terms of only two independent parameters at leading order. The scheme also gives an adequate CKM fit and should be testable within upcoming oscillation experiments.