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

References in corpus (11)

• Hard Interactions of Quarks and Gluons: a Primer for LHC Physics
• Top Quarks, Axigluons and Charge Asymmetries at Hadron Colliders
• Flavor Changing Neutral Currents, an Extended Scalar Sector, and the Higgs Production Rate at the LHC
• Color-octet scalars at the LHC
• Massive color-octet bosons and pairs of resonances at hadron colliders
• Massive color-octet bosons and the charge asymmetries of top quarks at hadron colliders
• Color Octet Scalar Production at the LHC
• Top production at the Tevatron/LHC and nonstandard, strongly interacting spin one particles
• Proton Stability, Dark Matter and Light Color Octet Scalars in Adjoint SU(5) Unification
• A new signature for color octet pseudoscalars at the LHC
• Colored scalar particles production in $pp$-collisions and possible mass limits for scalar gluons from future LHC data

Cited by in corpus (3)

• Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
• Axigluons cannot explain the observed top quark forward-backward asymmetry
• On mass limit for chiral color symmetry $G^{\prime }$-boson from Tevatron data on $t\bar{t}$ production