Distinguishing Color-Octet and Color-Singlet Resonances at the Large Hadron Collider

Abstract

Di-jet resonance searches are simple, yet powerful and model-independent, probes for discovering new particles at hadron colliders. Once such a resonance has been discovered it is important to determine the mass, spin, couplings, chiral behavior and color properties to determine the underlying theoretical structure. We propose a new variable which, in the absence of decays of the resonance into new non-standard states, distinguishes between color-octet and color-singlet resonances. To keep our study widely applicable we study phenomenological models of color-octet and color-singlet resonances in flavor universal as well as flavor non-universal scenarios. We present our analysis for a wide range of mass (2.5 - 6 TeV), couplings and flavor scenarios for the LHC with center of mass energy of 14 TeV and varying integrated luminosities of 30, 100, 300 and 1000 ${\mathrm{fb}}^{-1}$. We find encouraging results to distinguish color-octet and color-singlet resonances for different flavor scenarios at the LHC.

24 pages, 5 figures, 1 table

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Cited by in corpus (10)

• Measurement of the charge asymmetry in top quark pair production in pp collisions at sqrt(s) = 8 TeV using a template method
• Distinguishing Di-jet Resonances at the LHC
• An Optimal Observable for Color Singlet Identification
• The Color Discriminant Variable and Scalar Diquarks at the LHC
• Discovering walking technirho mesons at the LHC
• Distinguishing Flavor Non-universal Colorons from Z' Bosons at the LHC
• Broadening the Reach of Simplified Limits on Resonances at the LHC
• Simplified Limits on Resonances at the LHC
• Colorphilic Spin-2 Resonances in the LHC Dijet Channel
• Color Discriminant Variable to Separate Dijet Resonances at the LHC