Chiral color symmetry and possible $G^{\prime }$-boson effects at the Tevatron and LHC

Abstract

A gauge model with chiral color symmetry is considered and possible effects of the color $G^{\prime }$-boson octet predicted by this symmetry are investigated in dependence on two free parameters, the mixing angle ${\theta }_G$ and $G^{\prime }$ mass $m_{G^{\prime }}$. The allowed region in the $m_{G^{\prime }}-{\theta }_G$ plane is found from the Tevatron data on the cross section ${\sigma }_{t\bar{t}}$ and forward-backward asymmetry $A_{\mathrm{FB}}^{p\bar{p}}$ of the $t\bar{t}$ production. The mass limits for the $G^{\prime }$-boson are shown to be stronger than those for the axigluon. A possible effect of the $G^{\prime }$-boson on the $t\bar{t}$ production at the LHC is discussed and the mass limits providing for the $G^{\prime }$-boson evidence at the LHC are estimated in dependence on ${\theta }_G$.

11 pages, 2 figures, accepted for publication in Modern Physics Letters A

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Cited by in corpus (10)

• Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
• Axigluons cannot explain the observed top quark forward-backward asymmetry
• Distinguishing Di-jet Resonances at the LHC
• A Flavorful Top-Coloron Model
• On mass limit for chiral color symmetry $G^{\prime }$-boson from Tevatron data on $t\bar{t}$ production
• Consistency and Interpretation of the LHC (Di-)Di-Jet Excesses
• LHC Constraints on a Higgs Partner from an Extended Color Sector
• Broadening the Reach of Simplified Limits on Resonances at the LHC
• Collider constraints and new tests of color octet vectors
• The chiral color symmetry of quarks and $G^{\prime }$-boson contributions to charge asymmetry in $t\bar{t}$-production at the LHC and Tevatron