Search for strong gravity in multijet final states produced in pp collisions at $\sqrt{s} =$ 13 TeV using the ATLAS detector at the LHC

TL;DR

This paper searches for signs of strong gravity in multijet events at the LHC, setting limits on new physics models with extra dimensions using ATLAS data at 13 TeV.

Contribution

It provides the first limits on strong gravity models with extra dimensions in multijet final states at 13 TeV LHC data.

Findings

No excess observed at high $H_T$

Excludes models with cross sections >1.6 fb for $H_T$ > 5.8 TeV

Sets limits on models with additional space-time dimensions

Abstract

A search is conducted for new physics in multijet final states using 3.6 inverse femtobarns of data from proton-proton collisions at $\sqrt{s}$ = 13 TeV taken at the CERN Large Hadron Collider with the ATLAS detector. Events are selected containing at least three jets with scalar sum of jet transverse momenta ($H_T$) greater than 1 TeV. No excess is seen at large $H_T$ and limits are presented on new physics: models which produce final states containing at least three jets and having cross sections larger than 1.6 fb with $H_T$ > 5.8 TeV are excluded. Limits are also given in terms of new physics models of strong gravity that hypothesize additional space-time dimensions.