Minimal Flavor Protection: A New Flavor Paradigm in Warped Models

TL;DR

This paper introduces a minimal flavor protection framework for warped extra-dimensional models, balancing flavor safety with experimental testability, and predicts observable flavor violations and new resonances at the LHC.

Contribution

It presents a novel minimal flavor symmetry approach in warped models that naturally reproduces quark hierarchies while remaining compatible with current constraints.

Findings

Flavor violating processes are predicted near current experimental limits.

Models are testable via LHC resonance production and flavor experiments.

Hierarchical quark masses are explained through wave function localization.

Abstract

We propose a new flavor paradigm for models with warped extra dimensions. The idea is to impose the minimal amount of flavor protection to make warped models compatible with all current flavor and electroweak precision constraints. We discuss a particular realization of this minimal flavor protection in the quark sector, by means of a flavor symmetry acting on the right handed down sector. Hierarchical quark masses and mixing angles are naturally reproduced through wave function localization, and flavor violating processes are predicted, in the absence of large brane kinetic terms for the right handed down quarks, below but not too far from current experimental limits in several channels. With this new flavor pattern, models with warped extra dimensions can be accessible through direct production of new resonances at the LHC and also through precision flavor experiments.