Virtual Gravitons at the LHC

TL;DR

This paper investigates how a gravitational fixed point influences virtual graviton effects at the LHC, potentially leading to finite cross sections and offering insights into quantum gravity.

Contribution

It introduces the impact of a high-energy gravitational fixed point on LHC graviton-mediated processes, providing new predictions for collider phenomenology.

Findings

Finite LHC cross sections due to fixed point behavior

Determined the LHC reach for the fundamental Planck scale

Implications for quantum gravity theories

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.