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

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Date

2012

Authors

Jackson, P.
Soni, N.
White, M.

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Journal article

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European Physical Journal C: Particles and Fields, 2012; 72(11):1-22

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The ATLAS Collaboration

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Abstract

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.

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ATLAS Contributor: Paul Douglas Jackson of School of Chemistry and Physics, University of Adelaide, Adelaide, Australia. Extent: 22p.

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© CERN for the benefit of the ATLAS collaboration 2012. This article is published with open access at Springerlink.com

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