Published November 25, 2013 | Version v1
Journal article

A flavor sector for the composite Higgs

Creators

Description

We discuss flavor violation in large N Composite Higgs models. We focus on scenarios in which the masses of the Standard Model fermions are controlled by hierarchical mixing parameters, as in models of Partial Compositeness. We argue that a separation of scales between flavor and Higgs dynamics can be employed to parametrically suppress dipole and penguin operators, and thus effectively remove the experimental constraints arising from the lepton sector and the neutron EDM. The dominant source of flavor violation beyond the Standard Model is therefore controlled by 4-fermion operators, whose Wilson coefficients can be made compatible with data provided the Higgs dynamics approaches a "walking" regime in the IR. Models consistent with all flavor and electroweak data can be obtained with a new physics scale within the reach of the LHC. Explicit scenarios may be realized in a 5D framework, the new key ingredient being the introduction of flavor branes where the wave functions of the bulk fermions end

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2013.08.006

Additional details

Identifiers

DOI
10.1016/j.physletb.2013.08.006;
arXiv
arXiv:1206.4701v3;
PII
S0370-2693(13)00632-1;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
727
Journal Issue
1-3
Journal Page Range
p. 130-135
ISSN
0370-2693
CODEN
PYLBAJ

Optional Information

Copyright
Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.