Experimental Status of Supersymmetry after the LHC Run-I

TL;DR

This paper reviews the experimental searches for supersymmetry at the LHC after Run-I, highlighting the constraints placed on supersymmetric models and the ongoing potential of the upgraded LHC at higher energies.

Contribution

It provides a comprehensive summary of the status of supersymmetry searches post-Run-I, including constraints on models and the prospects with the upgraded LHC.

Findings

No evidence of supersymmetry was found in Run-I data.

Limits on supersymmetric particle masses have been established.

Natural SUSY scenarios remain viable in certain compressed spectra regions.

Abstract

The ATLAS and CMS experiments at the Large Hadron Collider (LHC) at CERN have searched for signals of new physics, in particular for supersymmetry. The data collected until 2012 at center-of-mass energies of 7 and 8 TeV and integrated luminosities of 5 fb^-1 and 20 fb^-1, respectively, agree with the expectation from standard model processes. Constraints on supersymmetry have been calculated and interpreted in different models. Limits on supersymmetry particle masses at the TeV scale have been derived and interpreted generally in the context of simplified model spectra. The constrained minimal supersymmetric standard model is disfavored by the experimental results. Natural supersymmetry scenarios with low supersymmetry particle masses remain possible in multiple regions, for example in those with compressed spectra, that are difficult to access experimentally. The upgraded LHC operating at 13 TeV is gaining sensitivity to the remaining unexplored SUSY parameter space.