Fundamental Composite (Goldstone) Higgs Dynamics - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of High Energy Physics Year : 2014

Fundamental Composite (Goldstone) Higgs Dynamics

G. Cacciapaglia
  • Function : Author
F. Sannino
  • Function : Author

Abstract

We provide a unified description, both at the effective and fundamental Lagrangian level, of models of composite Higgs dynamics where the Higgs itself can emerge, depending on the way the electroweak symmetry is embedded, either as a pseudo-Goldstone boson or as a massive excitation of the condensate. We show that, in general, these states mix with repercussions on the electroweak physics and phenomenology. Our results will help clarify the main differences, similarities, benefits and shortcomings of the different ways one can naturally realize a composite nature of the electroweak sector of the Standard Model. We will analyze the minimal underlying realization in terms of fundamental strongly coupled gauge theories supporting the flavor symmetry breaking pattern SU(4)/Sp(4) $\sim$ SO(6)/SO(5). The most minimal fundamental description consists of an SU(2) gauge theory with two Dirac fermions transforming according to the fundamental representation of the gauge group. This minimal choice enables us to use recent first principle lattice results to make the first predictions for the massive spectrum for models of composite (Goldstone) Higgs dynamics. These results are of the upmost relevance to guide searches of new physics at the Large Hadron Collider.

Dates and versions

in2p3-00941531 , version 1 (04-02-2014)

Identifiers

Cite

G. Cacciapaglia, F. Sannino. Fundamental Composite (Goldstone) Higgs Dynamics. Journal of High Energy Physics, 2014, 04, pp.111. ⟨10.1007/JHEP04(2014)111⟩. ⟨in2p3-00941531⟩
44 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More