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Article
Report number arXiv:1208.4305 ; CERN-PH-EP-2012-211 ; CERN-PH-EP-2012-211
Title Search for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in s = 7 TeV proton-proton collisions
Related titleSearch for light scalar top quark pair production in final states with two leptons with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions
Author(s) ATLAS Collaboration  Show all 2886 authors
Publication 2012-11-30
Imprint 22 Aug 2012
Number of pages 21
Note Comments: 8 pages plus author list (21 pages total), 2 figures, 2 tables
8 pages plus author list (21 pages total), 2 figures, 2 tables, submitted to European Physical Journal C
In: Eur. Phys. J. C 72 (2012) 2237
DOI 10.1140/epjc/s10052-012-2237-1
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords supersymmetry ; lepton production ; experimental results
Abstract A search is presented for the pair production of light scalar top quarks in s = 7 TeV proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider. This analysis uses the full data sample collected during 2011 that corresponds to a total integrated luminosity of 4.7 fb1. Light scalar top quarks are searched for in events with two opposite-sign leptons (e,μ), large missing transverse momentum and at least one jet in the final state. No excess over Standard Model expectations is found, and the results are interpreted under the assumption that the light scalar top decays to a b-quark in addition to an on-shell chargino whose decay occurs through a virtual W boson. If the chargino mass is 106 GeV, light scalar top quark masses up to 130 GeV are excluded for neutralino masses below 70 GeV.
Copyright/License publication: © 2012-2025 CERN (License: CC-BY-3.0)
preprint: © 2012-2025 CERN (License: CC-BY-3.0)



Corresponding record in: Inspire
Email contact: tony.doyle@glasgow.ac.uk


 Záznam vytvorený 2012-08-22, zmenený 2024-04-19


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