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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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.
DepartmentMassachusetts Institute of Technology. Department of Physics
Journal of High Energy Physics
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
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