Searching for colorons at the Large Hadron Collider

Abstract

We investigate the prospects for the discovery of massive color-octet vector bosons at the CERN Large Hadron Collider with $\sqrt{s}=14\text{ }\text{ }\mathrm{TeV}$. A phenomenological Lagrangian is adopted to evaluate the cross section of a pair of colored vector bosons (colorons, $\stackrel{\texttildelow{}}{\ensuremath{\rho}}$) decaying into four colored scalar resonances (hyper-pions, $\stackrel{\texttildelow{}}{\ensuremath{\pi}}$), which then decay into eight gluons. We include the dominant physics background from the production of $8g$, $7g1q$, $6g2q$, and $5g3q$, and determine the masses of $\stackrel{\texttildelow{}}{\ensuremath{\pi}}$ and $\stackrel{\texttildelow{}}{\ensuremath{\rho}}$ where discovery is possible. For example, we find that a $5\ensuremath{\sigma}$ signal can be established for ${M}_{\stackrel{\texttildelow{}}{\ensuremath{\pi}}}\ensuremath{\lesssim}495\text{ }\text{ }\mathrm{GeV}$ (${M}_{\stackrel{\texttildelow{}}{\ensuremath{\rho}}}\ensuremath{\lesssim}1650\text{ }\text{ }\mathrm{GeV}$). More generally we give the reach of this process for a selection of possible cuts and integrated luminosities.