LHC bounds on MUED after Run 2

TL;DR

This paper updates LHC constraints on the minimal universal extra dimensions model using Run 2 data, highlighting the importance of initial state radiation in the analysis.

Contribution

It provides the latest limits on MUED parameters from 13 TeV LHC searches, incorporating detailed simulation of initial state radiation effects.

Findings

Strongest bounds from squark and gluino searches with leptons and jets

Initial state radiation significantly impacts MUED search sensitivities

Updated parameter space exclusions for MUED model

Abstract

We present updated LHC limits on the minimal universal extra dimensions (MUED) model from the Run 2 searches. We scan the parameter space against a number of searches implemented in the public code \textsc{CheckMATE} and derive up-to-date limits on the MUED parameter space from 13 TeV searches. The strongest constraints come from a search dedicated to squarks and gluinos with one isolated lepton, jets and missing transverse energy. In the procedure we take into account initial state radiation and stress its importance in the MUED searches, which is not always appreciated.