Collider searches for non-perturbative low-scale gravity states

TL;DR

This paper reviews collider searches for non-perturbative low-scale gravity states at the LHC, summarizing past results, discussing their implications, and providing predictions for future higher-energy runs.

Contribution

It provides a comprehensive summary of experimental searches for low-scale gravity states and offers insights and predictions for upcoming collider energies.

Findings

ATLAS and CMS have searched for low-scale gravity states at 8 TeV.

Current results challenge the existence of certain non-perturbative gravity states.

Early 13 TeV results are discussed with implications for future searches.

Abstract

The possibility of producing non-perturbative low-scale gravity states in collider experiments was first discussed in about 1998. The ATLAS and CMS experiments have searched for non-perturbative low-scale gravity states using the Large Hadron Collider (LHC) with a proton--proton centre of mass energy of 8 TeV. These experiments have now seriously confronted the possibility of producing non-perturbative low-scale gravity states which were proposed over 17 years ago. I will summarise the results of the searches, give a personal view of what they mean, and make some predictions for 13 TeV centre of mass energy. I will also discuss early ATLAS 13 TeV centre of mass energy results.