Large Extra Dimensions at High Energy Colliders

Abstract

We explore the capability of the high energy colliders LHC and ILC to distinguish spin-2 Kaluza-Klein towers of gravitons exchange from other new physics effects which might be conveniently parametrized by the four-fermion contact interactions. We find that the LHC and ILC with planned energies and luminosities will be capable of discovering and identifying graviton exchange effects in the ADD scenario with the cutoff parameter of order 5-9 TeV depending on energy and luminosity.