New Constraints on Gauge Mediation and Beyond from LHC SUSY Searches at 7 TeV

TL;DR

This paper analyzes early LHC data on jets plus missing energy to constrain gauge mediation supersymmetry models, excluding parts of parameter space and testing benchmark points against experimental results.

Contribution

It provides the first confrontation of pure general gauge mediation models with LHC 7 TeV data, using detailed simulations and experimental cuts.

Findings

LHC data excludes some GGM parameter regions.

Standard SUSY benchmarks are tested against new data.

Certain GGM models remain viable after analysis.

Abstract

The first results from the LHC on jets plus missing energy provide powerful new data to test SUSY models. Initial theoretical interpretations of these data have concentrated on gravity mediation, usually the CMSSM and its variations. In this paper we confront a large class of gauge mediation models with these new data. More precisely we consider models of pure general gauge mediation (pure GGM) and confront them with the recent experimental results of the ATLAS collaboration. We use Herwig++ and RIVET, incorporating the full set of experimental cuts, to calculate the signal rates and compare them to the data. Although based on only 35pb^{-1} of integrated luminosity, we show that these new data probe and exclude a portion of previously allowed parameter space of GGM. In addition we investigate the viability of standard SUSY benchmark points, including the Snowmass, CMS and ATLAS sets which encompass other mediation scenarios such as gravity, anomaly and gaugino mediation.