A Single Source for All Flavor Violation

TL;DR

This paper discusses a model where all flavor mixing originates from a single master matrix, predicting observable effects in quark, lepton, and flavor-changing processes mediated by a singlet scalar.

Contribution

It demonstrates that the master matrix also governs flavor-changing processes, extending the model's predictive power to rare decay phenomena.

Findings

Predictions for tau to mu + gamma, tau to e + gamma, and mu to e + gamma decays.

The master matrix controls flavor-changing processes mediated by a singlet scalar.

The model links flavor mixing with observable rare decay processes.

Abstract

In a model proposed in 2012, all flavor mixing has a single source and is governed by a single "master matrix." This model was shown to give several predictions for quark and lepton masses and mixing angles and for mixing angles within SU(5) multiplets that are observable in proton decay. Here it is shown that the same master matrix controls the flavor-changing processes mediated by a singlet scalar that exists in the model, giving predictions for tau to mu + gamma, tau to e + gamma, and mu to e + gamma.