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In Randall-Sundrum models, the Kaluza-Klein (KK) excitations of the gluon,g_{KK} have enhanced couplings to the right-handed quarks. In the absence of agg g_{KK} coupling in these models, the single production of a g_{KK} from aninitial gg state is not possible. The search for other production mechanisms atthe LHC, therefore, becomes important. We suggest that the associatedproduction of a g_{KK} with a t t(bar) pair is such a mechanism. Our studyshows that through this process the LHC can probe KK gluon masses in the rangeof 2.8 -- 2.9 TeV.

Associated production of a Kaluza-Klein excitation of a gluon with a t t(bar) pair at the LHC