A GIM Mechanism from Extra Dimensions

Abstract

We explore how to protect extra dimensional models from large flavor changing neutral currents by using bulk and brane flavor symmetries. We show that a GIM mechanism can be built in to warped space models such as Randall-Sundrum or composite Higgs models if flavor mixing is introduced via UV brane kinetic mixings for right handed quarks. We give a realistic implementation both for a model with minimal flavor violation and one with next-to-minimal flavor violation. The latter does not suffer from a CP problem. We consider some of the existing experimental constraints on these models implied by precision electroweak tests.

18 pages, 3 figures

References in corpus (3)

• LHC Signals for Warped Electroweak Neutral Gauge Bosons
• Bound on minimal universal extra dimensions from Bbar -> X_s gamma
• Determining the Sign of the Z-Penguin Amplitude

Cited by in corpus (5)

• Delta F=2 Observables and Fine-Tuning in a Warped Extra Dimension with Custodial Protection
• Higgs Mediated FCNC's in Warped Extra Dimensions
• Constraints on New Physics in MFV models: a model-independent analysis of Delta F=1 processes
• A Simple Flavor Protection for RS
• Minimal Flavor Violation in the Lepton Sector of the Randall-Sundrum Model