Phenomenology of the Renormalizable Coloron Model

TL;DR

This paper explores the phenomenology of the renormalizable coloron model, an extension of the Standard Model's color sector, analyzing its constraints, potential signals at colliders, and the importance of NLO corrections for coloron production.

Contribution

It provides a comprehensive summary of the model's formalism, phenomenological constraints, and collider prospects, including the impact of NLO corrections on production cross sections.

Findings

Model is highly constrained and predictive.

LHC and future colliders can thoroughly probe the parameter space.

NLO corrections significantly affect coloron production cross sections.

Abstract

The renormalizable coloron model constitutes the minimal extension of the standard model (SM) color sector to $SU(3)_{1c} \times SU(3)_{2c}$, with the spontaneous symmetry breaking of the extended gauge group to the diagonal QCD facilitated by the renormalizable operators. It predicts the existence of the beyond the SM massive color-octet gauge bosons (colorons), colored and uncolored scalar degrees of freedom, as well as potential spectator fermions necessary for anomaly-cancelation purposes. Furthermore, keeping the ordinary chiral quark charge assignments under the extended color gauge group in their most general form, the framework (effectively) captures a large class of models available within the literature. This contribution summarizes the current formal and phenomenological constraints on the free parameter space of the theory, as well as the LHC $\sqrt s = 14$ TeV prospects for discovering its heavy scalar. The model is well-constrained and highly predictive; in particular, it is shown that the parameter space can be thoroughly probed by the LHC and the next generation hadron colliders, making it a promising beyond the SM candidate for exploration. In addition, the significance of the NLO corrections to the coloron production cross section are discussed.