Virtual Gravitons at the LHC

Abstract

Virtual gravitons effects at the LHC in scenarios with large extra dimensions and low-scale gravity are sensitive to the ultraviolet completion of the Kaluza-Klein effective theory. We study implications of a gravitational fixed point at high energies on gravitational Drell-Yan lepton production in hadron collisions. The fixed point behaviour leads to finite LHC cross sections. We determine the reach for the fundamental Planck scale. An observation of these signals might shed light on the fundamental quantum theory of gravity.