Search for Supersymmetry in Events with Large Missing Transverse Momentum, Jets, and at Least One Tau Lepton in 7 TeV Proton-Proton Collision Data with the ATLAS Detector

Abstract

A search for supersymmetry (SUSY) in events with large missing transverse momentum, jets, and at least one hadronically decaying tau lepton, with zero or one additional light lepton (e/mu), has been performed using 4.7 fb-1 of proton-proton collision data at sqrt(s) = 7 TeV recorded with the ATLAS detector at the Large Hadron Collider. No excess above the Standard Model background expectation is observed and a 95% confidence level visible cross-section upper limit for new phenomena is set. In the framework of gauge-mediated SUSY-breaking models, lower limits on the mass scale Lambda are set at 54 TeV in the regions where the stau is the next-to-lightest SUSY particle (tan(beta) > 20). These limits provide the most stringent tests to date of GMSB models in a large part of the parameter space considered.

11 pages plus author list (25 pages in total), 5 figures, 4 tables, submitted to EPJC

References in corpus (12)

• PYTHIA 6.4 Physics and Manual
• New parton distributions for collider physics
• Herwig++ Physics and Manual
• Threshold resummation for squark-antisquark and gluino-pair production at the LHC
• Soft gluon resummation for the production of gluino-gluino and squark-antisquark pairs at the LHC
• Parton Distributions for LO Generators
• Supersymmetry production cross sections in pp collisions at sqrt{s} = 7 TeV
• Measurement of the charge asymmetry in top quark pair production in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector
• Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy
• Further search for supersymmetry at sqrt(s) = 7 TeV in final states with jets, missing transverse momentum and isolated leptons with the ATLAS detector
• Search for events with large missing transverse momentum, jets, and at least two tau leptons in 7 TeV proton-proton collision data with the ATLAS detector
• Search for supersymmetry with jets, missing transverse momentum and at least one hadronically decaying tau lepton in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

Cited by in corpus (19)

• HistFitter software framework for statistical data analysis
• Indirect Probes of the MSSM after the Higgs Discovery
• LHC Coverage of RPV MSSM with Light Stops
• Search for supersymmetry at sqrt(s)=8 TeV in final states with jets and two same-sign leptons or three leptons with the ATLAS detector
• Surveying Extended GMSB Models with mh=125 GeV
• Search for physics beyond the standard model in events with tau leptons, jets, and large transverse momentum imbalance in pp collisions at sqrt(s) = 7 TeV
• Burgeoning the Higgs mass to 125 GeV through messenger-matter interactions in GMSB models
• Search for supersymmetry in events with large missing transverse momentum, jets, and at least one tau lepton in 20 fb${}^{-1}$ of $\sqrt{s}$=8 TeV proton-proton collision data with the ATLAS detector
• "L=R" -- $U(1{)}_R$ Lepton Number at the LHC
• Looking for new charged states at the LHC: Signatures of Magnetic and Rayleigh Dark Matter
• Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum using $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Determination of the CMSSM Parameters using Neural Networks
• Search for squarks and gluinos in events with hadronically decaying tau leptons, jets and missing transverse momentum in proton-proton collisions at $\sqrt{s}=13$ TeV recorded with the ATLAS detector
• Lessons for SUSY from the LHC after the first run
• Improving estimates of the number of fake leptons and other mis-reconstructed objects in hadron collider events: BoB's your UNCLE. (Previously "The Matrix Method Reloaded")
• Weighing the Light Gravitino Mass with Weak Lensing Surveys
• The Status of Supersymmetry after the LHC Run 1
• Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptons
• Supersymmetry - When Theory Inspires Experimental Searches