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A Simple Flavor Protection for RS
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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.
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Cited by 1 Pith paper
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Partial Compositeness: from Anarchy to Symmetry
A two-stage renormalization group flow, anarchic at high energies and flavor-symmetric at low energies, dynamically realizes Minimal Flavor Violation in composite Higgs models at a 5-10 TeV scale.
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