Salvatore, F and The ATLAS Collaboration, (2012) 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. European Physical Journal C: Particles and Fields, 72 (2215). pp. 1-22. ISSN 1434-6044

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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 τ˜1 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.

Item Type:	Article
Additional Information:	Primary editor of the paper and sole responsible of the analysis of the 2tau final state and the statistical combination of the 4 channels discussed in the paper. First ATLAS SUSY paper combining all tau final states and providing best limit on GMSB parameter space to date.
Schools and Departments:	School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects:	Q Science > QC Physics > QC0770 Nuclear and particle physics. Atomic energy. Radioactivity > QC0793 Elementary particle physics
Depositing User:	Fabrizio Salvatore
Date Deposited:	03 Dec 2012 12:25
Last Modified:	11 Mar 2017 02:54
URI:	http://srodev.sussex.ac.uk/id/eprint/41717

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