| Scope and method of study. The intent of this research is to consider multiple TeV-1-size extra compact dimensions in an asymmetric string compactification scenario in which the SM gauge bosons can propagate into the TeV-1-size extra dimensions while the SM fermions are confined to the usual SM D3-brane. The contributions that the KK excitations of the gluons, g*'s, make to the multijet cross sections in proton-proton collisions at the LHC energy are calculated. Fortran was used to do the calculations.; Findings and conclusions. At very high pT, the dijet signal will either be enhanced significantly due to virtual g* exchanges or place a lower bound on the compactification scale of about 8 TeV. It is found that the dijet signal is very sensitive to three parameters---the compactification scale, the string scale, and the number of extra dimensions. Thus, although the dijet signal is much more sensitive to KK effects, the dijet signal alone does not provide sufficient information to deduce the number of extra dimensions nor the compactification scale. However, the three-jet signal, which is not sensitive to the string scale, can be analyzed in conjunction with the dijet signal to extract all three parameters. For proton-proton collisions at the LHC energy, the three-jet signal can be significantly enhanced by KK contributions for a compactification scale of 4--5 TeV. |
