Jackson, P.Soni, N.White, M.Jackson, Paul Douglas2013-05-012013-05-012012European Physical Journal C: Particles and Fields, 2012; 72(11):1-221434-60441434-6052http://hdl.handle.net/2440/77347ATLAS Contributor: Paul Douglas Jackson of School of Chemistry and Physics, University of Adelaide, Adelaide, Australia. Extent: 22p.A search for supersymmetry (SUSY) in events with large missing transverse momentum, jets, and at least one hadronically decaying τ lepton, with zero or one additional light lepton (e/μ), has been performed using 4.7 fb−1 of proton-proton collision data at √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 Λ are set at 54 TeV in the regions where the ˜τ₁ is the next-to-lightest SUSY particle (tanβ > 20). These limits provide the most stringent tests to date of GMSB models in a large part of the parameter space considered.en© CERN for the benefit of the ATLAS collaboration 2012. This article is published with open access at Springerlink.comJournal article002012641610.1140/epjc/s10052-012-2215-70003120748000172-s2.0-8487124929920742Jackson, P. [0000-0002-0847-402X]