SU(3) gauge theory with sextet fermions

Abstract

SU(3) gauge theory coupled to N_f = 2 fermions in the sextet representation is a promising candidate for a technicolor inspired Standard Model extension. In this note the progress in the past few years aimed at understanding the non-perturbative properties of the model is reviewed. The main difficulties lying ahead in order to make robust conclusions from lattice simulations are outlined.

Comments: Contribution to the XXIX International Symposium on Lattice Field Theory - Lattice 2011 (references added)