# Current LHC Constraints on Minimal Universal Extra Dimensions

## TL;DR

This paper analyzes LHC data to set constraints on the minimal universal extra dimension model, using various supersymmetry searches to explore the parameter space and identify the most restrictive bounds.

## Contribution

It provides the first comprehensive analysis of LHC Run 1 and Run 2 data to constrain MUED models using a wide range of SUSY search strategies.

## Key findings

- Established new limits on MUED parameter space from 13 TeV LHC data.
- Demonstrated the effectiveness of combining multiple SUSY searches.
- Identified the most sensitive channels for future MUED constraints.

## Abstract

In this letter, we present LHC limits on the minimal universal extra dimension (MUED) model from LHC Run 1 data and current limits from searches of the ongoing Run 2. Typical collider signals of the Kaluza-Klein (KK) states mimic generic degenerate supersymmetry (SUSY) missing transverse momentum signatures since the excited KK particles cascade decay to jets, leptons and the lightest KK particle which is stable due to KK parity and thus evades detection. We test the parameter space against a large number of supersymmetry based missing energy searches implemented in the public code CheckMATE. We demonstrate the complementarity of employing various searches which target a large number of final state signatures, and we derive the most up to date limits on the MUED parameter space from 13 TeV SUSY searches.