Can a light Higgs impostor hide in composite gauge models?

Fodor, Zoltán and Holland, Kieran and Kuti, Julius and Nógrádi, Dániel and Wong, Chik Him (2014) Can a light Higgs impostor hide in composite gauge models? POS - PROCEEDINGS OF SCIENCE, 29. ISSN 1824-8039

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Abstract

The frequently discussed strongly interacting gauge theory with a fermion flavor doublet in the two-index symmetric (sextet) representation of the SU(3) color gauge group is investigated [1–3]. In previous studies [3] the chiral condensate and the mass spectrum were shown to be consis- tent with chiral symmetry breaking ( χSB) at vanishing fermion mass. The recently reportedβ -function [4] is not inconsistent with this observation, suggesting that the model is very close to the conformal window and a light “Higgs impostor” could emerge as a composite state. In this work we describe the methodology and preliminary results of studying the emergence of the light composite scalar with 0++ quantum numbers.

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