Eikonal regime of gravity-induced scattering at higher energy proton colliders

TL;DR

This paper investigates gravity-induced scattering at high energies in extra-dimensional theories, focusing on the eikonal regime at current and future proton colliders, and provides new calculations of the QCD background.

Contribution

It presents the first leading-order calculations of the QCD background for transplanckian scattering in extra-dimensional models at colliders.

Findings

Eikonal approximation is valid under specific cuts that maximize signal-to-background ratio.

A 33 TeV upgrade extends the calculable region and improves the signal detection.

The study offers insights into the potential for observing gravity effects at future colliders.

Abstract

We compute transplanckian parton scattering in flat extra-dimensional theories at the LHC and at the recently discussed high-energy upgrade (HE LHC). We report new leading-order calculations of the QCD background. We apply appropriate cuts to satisfy the necessary conditions for the eikonal approximation to be valid while at the same time maximising the signal to background ratio at LHC energies. We study the computability of the eikonal signal and consider the effect of a possible 33 TeV high-energy upgrade to the LHC, which serves to extend the calculable region and to enhance the signal to background ratio.