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.2013.08.006Additional 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
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45062901
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BRANES; CERN LHC; DIPOLES; FLAVOR MODEL; HIGGS MODEL; LEPTONS; NEUTRONS; STANDARD MODEL; WAVE FUNCTIONS
- Descriptors DEC
- ACCELERATORS; BARYONS; COMPOSITE MODELS; CYCLIC ACCELERATORS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; FUNCTIONS; GRAND UNIFIED THEORY; HADRONS; MATHEMATICAL MODELS; MULTIPOLES; NUCLEONS; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL; STORAGE RINGS; SYNCHROTRONS; UNIFIED GAUGE MODELS
Optional Information
- Copyright
- Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.