Testing TeV Scale Quantum Gravity using Dijet Production at the Tevatron

TL;DR

This paper investigates how dijet production data from the Tevatron can be used to set limits on theories of large extra dimensions involving TeV-scale quantum gravity, focusing on virtual graviton exchanges.

Contribution

It provides new constraints on the effective string scale in large extra dimension models using Tevatron dijet data.

Findings

String scale limits around 1.2 TeV are established.

Virtual spin-2 Kaluza-Klein mode effects are considered.

Dijet angular and mass distributions are key to setting bounds.

Abstract

Dijet production at the Tevatron including effects of virtual exchanges of spin-2 Kaluza-Klein modes in theories with large extra dimensions is considered. The experimental dijet mass and angular distribution are exploited to obtain stringent limits ($\sim 1.2$ TeV) on the effective string scale $M_S$.