Quantum Gravity at the LHC

TL;DR

This paper investigates the potential to detect quantum gravity effects at the LHC through missing energy signatures, especially considering large hidden sectors that could lower the gravity scale.

Contribution

It compares quantum gravity signatures with extra dimensional models and establishes how LHC data can set new limits on the Planck mass.

Findings

LHC can potentially detect quantum gravity effects via missing energy signatures.

Non-observation can set the tightest limits on the Planck mass.

Results suggest large hidden sectors lower the gravity scale accessible at colliders.

Abstract

It has recently been shown that if there is a large hidden sector in Nature, the scale of quantum gravity could be much lower than traditionally expected. We study the production of massless gravitons at the LHC and compare our results to those obtained in extra dimensional models. The signature in both cases is missing energy plus jets. In case of non observation, the LHC could be used to put the tightest limit to date on the value of the Planck mass.