pMSSM Studies at the 7, 8 and 14 TeV LHC

TL;DR

This study evaluates the pMSSM parameter space at the LHC across 7, 8, and 14 TeV energies, using simulations to determine which SUSY models remain viable after existing searches and projecting future sensitivities.

Contribution

It provides a comprehensive analysis of the pMSSM at multiple LHC energies, including extrapolations to high luminosity, highlighting the potential to probe natural SUSY models.

Findings

Current LHC searches exclude certain sparticle mass ranges.

High-luminosity LHC significantly enhances sensitivity to natural SUSY.

Many pMSSM models remain viable after existing constraints.

Abstract

The 19/20-parameter p(henomenological)MSSM with either a neutralino or gravitino LSP offers a flexible framework for the study of a wide variety of R-parity conserving MSSM SUSY phenomena at the 7, 8 and 14 TeV LHC. Here we present the results of a study of SUSY signatures at these facilities obtained via a fast Monte Carlo 'replication' of the ATLAS SUSY analysis suite. In particular, we show the ranges of the sparticle masses that are either disfavored or remain viable after all of the various searches at the 7 and 8 TeV runs are combined. We then extrapolate to 14 TeV with both 300 fb^-1 and 3 ab^-1 of integrated luminosity and determine the sensitivity of a jets + MET search to the pMSSM parameter space. We find that the high-luminosity LHC performs extremely well in probing natural SUSY models.