Collider implications of Kaluza-Klein excitations of the gluons

We consider an asymmetric string compactification scenario in which the standard model (SM) gauge bosons can propagate into one TeV-1-sized extra compact dimension. These gauge bosons have associated Kaluza-Klein (KK) excitations that present additional contributions to the SM processes. We calculate the effects that the KK excitations of the gluons, g(star)'s, have on multijet final-state production in proton-proton collisions at the CERN Large Hadron Collider energy. In the case of dijet final states with very high p(T), the KK signal due to the exchanges of the g(star)'s is several factors greater than the SM background for compactification scales as high as about 7 TeV. The high-p(T) effect is not as dramatic for the direct production of a single on-shell g(star), which subsequently decays into q-(q) over bar pairs, where the KK signal significantly exceeds the SM three-jet background for compactification scales up to about 3 TeV. We also present our results for the four-jet final-state signal from the direct production of two on-shell g(star)'s.