Signatures of gravitational fixed points at the LHC

We study quantum-gravitational signatures at the Large Hadron Collider (LHC) in the context of theories with extra spatial dimensions and a low fundamental Planck scale in the TeV range. Implications of a gravitational fixed point at high energies are worked out using Wilson's renormalisation group. We find that relevant cross-sections involving virtual gravitons become finite. We determine the $5\sigma$ discovery reach for the fundamental Planck scale based on lepton pair production in hadronic collisions.