A $\sim 5\mathrm{GeV}$ “dark baryon” with a cosmic asymmetry similar to that of baryons is a natural candidate for the dark matter. We study the possibility of generating such a state through dynamical electroweak symmetry breaking, and show that it can share the relic baryon asymmetry via sphaleron interactions, even though it has no electroweak interactions. The scattering cross section on nucleons, estimated in analogy to QCD, is within reach of underground direct detection experiments.

• Received 25 March 2011

DOI:https://doi.org/10.1103/PhysRevD.84.051703