Probing Color Octet Couplings at the Large Hadron Collider

Abstract

Color-octet resonances arise in many well motivated theories beyond the standard model. As colored objects they are produced copiously at the LHC and can be discovered in early searches for new physics in dijet final states. Once they are discovered it will be important to measure the couplings of the new resonances to determine the underlying theoretical structure. We propose a new channel, associated production of $W,Z$ gauge bosons and color-octet resonances, to help determine the chiral structure of the couplings. We present our analysis for a range of color-octet masses (2.5 to 4.5 TeV), couplings and decay widths for the LHC with center of mass energy of 14 TeV and 10 ${\mathrm{fb}}^{-1}$ or 100 ${\mathrm{fb}}^{-1}$ of integrated luminosity. We find that the LHC can probe a large region of the parameter space up to very small couplings.

19 pages, 9 figures, 3 tables

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• PYTHIA 6.4 Physics and Manual
• Measurement of the charge asymmetry in top quark pair production in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector
• Constraining heavy colored resonances from top-antitop quark events
• Massive color-octet bosons and the charge asymmetries of top quarks at hadron colliders
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Cited by in corpus (7)

• Coupling--mass mapping of di-jet peak searches
• Distinguishing Color-Octet and Color-Singlet Resonances at the Large Hadron Collider
• Distinguishing Flavor Non-universal Colorons from Z' Bosons at the LHC
• Ultraviolet Completions of Axigluon Models and Their Phenomenological Consequences
• Top quark physics in the Vector Color-Octet Model
• QCD corrections to massive color-octet vector boson pair production
• Coloron Models and LHC Phenomenology