New strong interactions at the Tevatron?

Recent results from CDF indicate that the inclusive cross section for jets with Er > 200 GeV is significantly higher than that predicted by QCD. We describe here a simple flavor-universal variant of the “coloron” model of Hill and Parke that can accommodate such a jet excess, and which is not in contradiction with other experimental data. As such, the model serves as a useful baseline with which to compare both the data and other models proposed to describe the jet excess. An interesting theoretical feature of the model is that if the global chiral symmetries of the quarks remain unbroken in the confining phase of the coloron interaction, it realizes the possibility that the ordinary quarks are composite particles.