Flavor Anarchy in a Randall-Sundrum Model with 5D Minimal Flavor Violation and a Low Kaluza-Klein Scale

A. Liam Fitzpatrick, Gilad Perez, and Lisa Randall
Phys. Rev. Lett. 100, 171604 – Published 28 April 2008

Abstract

A variant of a warped extra dimension model is presented. It is based on 5D minimal flavor violation, in which the only sources of flavor breaking are two 5D anarchic Yukawa matrices. These matrices also control the bulk masses, which are responsible for the resulting flavor hierarchy. The theory flows to a next to minimal flavor violation model where flavor violation is dominantly coming from the 3rd generation. Flavor violation is also suppressed by a parameter that dials the violation in the up or down sector. There is therefore a sharp limit in which there is no flavor violation in the down-type quark sector which, remarkably, is consistent with the observed flavor parameters. This is used to eliminate the current Randall-Sundrum flavor and CP problem. Our construction suggests that strong dynamic-based, flavor models may be built based on the same concepts.

  • Received 18 October 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.171604

©2008 American Physical Society

Authors & Affiliations

A. Liam Fitzpatrick1, Gilad Perez1,2,3, and Lisa Randall1

  • 1Jefferson Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
  • 2C. N. Yang Institute for Theoretical Physics, State University of New York, Stony Brook, New York 11794-3840, USA
  • 3Physics Department, Boston University, Boston, Massachusetts 02215, USA

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Issue

Vol. 100, Iss. 17 — 2 May 2008

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