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Measurement of the cross section for top-quark pair production in pp collisions at √s = 7 TeV with the ATLAS detector using final states with two high-p T leptons

Author(s)
ATLAS Collaboration; Taylor, Frank E
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Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
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Abstract
A measurement is reported of the production cross section of top-quark pairs (tt̄) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the LHC. Candidate events have a signature consistent with containing two isolated leptons, large missing transverse momentum, and at least two jets. Using a data sample corresponding to an integrated luminosity of 0.70 fb [superscript -1], a tt̄ production cross section σ tt̄ = 176 ± 5(stat.)[subscript -11][superscript +14] (syst.) ± 8(lum.) pb is measured for an assumed top-quark mass of m t = 172.5 GeV. This measurement is in good agreement with Standard Model predictions.
Date issued
2012-05
URI
http://hdl.handle.net/1721.1/116066
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Journal of High Energy Physics
Publisher
Springer Nature
Citation
Aad, G. et al. “Measurement of the cross section for top-quark pair production in pp collisions at √s = 7 TeV with the ATLAS detector using final states with two high-p T leptons.” Journal of High Energy Physics 2012, 5 (May 2012): 59 © 2012 SISSA
Version: Final published version
ISSN
1029-8479

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