Eur. Phys. J. C (2012) 72: 2030
https://doi.org/10.1140/epjc/s10052-012-2030-1

Regular Article - Theoretical Physics

Composite MFV and beyond

¹ Theory Division, CERN, 1211, Geneva 23, Switzerland
² INFN, 50019, Sesto F., Firenze, Italy

^* e-mail: michele.redi@cern.ch

Received: 23 April 2012
Published online: 13 June 2012

Abstract

We revisit and extend realizations of Minimal Flavor Violation (MFV) in theories with strongly coupled electro-weak symmetry breaking. MFV requires that some chiralities of light SM quarks are strongly composite leading, depending on the scenario, to bounds from compositeness searches, precision electro-weak tests or even flavor physics. Within the framework of partial compositeness we show how to extend the MFV paradigm allowing the treat the top quark differently. This can be realized if for example the strong sector has an U(2) symmetry. In this case the light generations can be mostly elementary and all the bounds are easily satisfied.