A Simple Flavor Protection for RS

Abstract

We present a simple variation of warped flavor models where the hierarchies of fermion masses and mixings are still explained but dangerous flavor violating effects in the Kaon sector are greatly reduced. The key new ingredients are two horizontal U(1) symmetries. These symmetries forbid flavor violation in the down quark sector (with the exception of small IR brane localized kinetic mixing terms for the left-handed quarks) while allowing for flavor violation in the up quark sector. The leading flavor constraints come from D - anti-D mixing, and are safely satisfied for the KK mass scale of order 3 TeV. Our analysis of the flavor constraints also includes the constraints due to the (usually ignored) localized kinetic mixing terms. We also comment on the effects of the additional U(1) gauge bosons.

15 pages

References in corpus (10)

• Warped Gravitons at the LHC and Beyond
• Delta F=2 Observables and Fine-Tuning in a Warped Extra Dimension with Custodial Protection
• Correlations among new CP violating effects in Delta F = 2 observables
• LHC Signals for Warped Electroweak Neutral Gauge Bosons
• Implications of D^0-\bar D^0 Mixing for New Physics
• Possible Indications of New Physics in Bd-mixing and in sin(2 beta) Determinations
• Minimal Flavor Protection: A New Flavor Paradigm in Warped Models
• Kaluza--Klein excitations of gauge bosons at the LHC
• Collider Phenomenology of Gauge-Higgs Unification Scenarios in Warped Extra Dimensions
• Probing RS scenarios of flavour at LHC via leptonic channels

Cited by in corpus (7)

• Flavor Physics in the Randall-Sundrum Model: I. Theoretical Setup and Electroweak Precision Tests
• Delta F=2 Observables and Fine-Tuning in a Warped Extra Dimension with Custodial Protection
• General Minimal Flavor Violation
• Higgs Mediated FCNC's in Warped Extra Dimensions
• Lessons from Recent Measurements of D-\bar D Mixing
• Warping the Universal Extra Dimensions
• Effective Theories for Flavour Physics beyond the Standard Model