A Viable Flavor Model for Quarks and Leptons in RS with T' Family Symmetry

TL;DR

This paper presents a Randall-Sundrum model incorporating T' family symmetry that naturally explains neutrino mixing and quark mixing while avoiding flavor-changing neutral currents, making it testable at colliders.

Contribution

It introduces a novel RS model with T' symmetry that unifies fermion generations and suppresses flavor-changing processes, providing a testable framework.

Findings

Achieves tri-bimaximal neutrino mixing

Produces a realistic CKM matrix

Suppresses flavor-changing-neutral-currents

Abstract

We propose a Randall-Sundrum model with a bulk family symmetry based on the double tetrahedral group, T', which generates the tri-bimaximal neutrino mixing pattern and a realistic CKM matrix. The T' symmetry forbids tree-level flavor-changing-neutral-currents in both the quark and lepton sectors, as different generations of fermions are unified into multiplets of T'. This results in a low first KK mass scale and thus the model can be tested at collider experiments.