Classical scale-invariance, the electroweak scale and vector dark matter

Abstract

We consider a classically scale-invariant extension of the standard model in which a dark, non-Abelian gauge symmetry is spontaneously broken via the Coleman-Weinberg mechanism. Higgs portal couplings between the dark and standard model sectors provide an origin for the Higgs mass squared parameter and, hence, the electroweak scale. We find that choices for model parameters exist in which the dark gauge multiplet is viable as dark matter.

Comments: 15 pages LaTeX, 3 figures. v2: references added, v3: minor revisions, more references added