Quantum critical Higgs

Brando Bellazzini, Csaba Csáki, Jay Hubisz, Seung J. Lee, Javi Serra, John Terning

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The appearance of the light Higgs boson at the LHC is difficult to explain, particularly in light of naturalness arguments in quantum field theory. However, light scalars can appear in condensed matter systems when parameters (like the amount of doping) are tuned to a critical point. At zero temperature these quantum critical points are directly analogous to the finely tuned standard model. In this paper, we explore a class of models with a Higgs near a quantum critical point that exhibits non-mean-field behavior. We discuss the parametrization of the effects of a Higgs emerging from such a critical point in terms of form factors, and present two simple realistic scenarios based on either generalized free fields or a 5D dual in anti-de Sitter space. For both of these models, we consider the processes gg → ZZ and gg → hh, which can be used to gain information about the Higgs scaling dimension and IR transition scale from the experimental data.

Original languageEnglish (US)
Article number041050
JournalPhysical Review X
Volume6
Issue number4
DOIs
StatePublished - 2016

Keywords

  • Condensed matter physics
  • Particles and fields

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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