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Scientific article
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English

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

ContributorsATLAS Collaboration
Published inThe journal of high energy physics, vol. 05, no. 059, 34
Publication date2012
Abstract

A measurement is reported of the production cross section of top-quark pairs (tt) 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−1, a tt production cross section σtt=176±5(stat.)+14−11(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.

Keywords
  • Hadron-Hadron Scattering
Citation (ISO format)
ATLAS Collaboration. Measurement of the cross section for top-quark pair production in <em>pp</em> collisions at √s=7TeV with the ATLAS detector using final states with two high-<em>p</em><sub>T</sub> leptons. In: The journal of high energy physics, 2012, vol. 05, n° 059, p. 34. doi: 10.1007/JHEP05(2012)059
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Article (Published version)
accessLevelPublic
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ISSN of the journal1029-8479
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