4.7 Article

Is the Higgs boson associated with Coleman-Weinberg dynamical symmetry breaking?

Journal

PHYSICAL REVIEW D
Volume 89, Issue 7, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.89.073003

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Funding

  1. Fermi Research Alliance, LLC [DE-AC02-07CH11359]
  2. United States Department of Energy

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The Higgs mechanism may be a quantum phenomenon, i.e., a Coleman-Weinberg potential generated by the explicit breaking of scale symmetry in Feynman loops. We review the relationship of scale symmetry and trace anomalies, and we show that the Coleman-Weinberg potential can be defined as the solution to a differential renormalization group equation that follows from the trace of the improved stress tensor. We propose a simple phenomenological model with maximal visibility at the LHC containing a dormant Higgs doublet [no VEV, coupled to standard model gauge interactions SU(2) X U(1)] with a mass of similar to 380 GeV. We discuss the LHC phenomenology and UV challenges of such a model. We also give a schematic model in which new heavy fermions, with masses similar to 230 GeV, can drive a Coleman-Weinberg potential at two loops. The role of the improved stress tensor is emphasized, and we propose a nongravitational term, analogous to the. term in QCD, which generates it from a scalar action.

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