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-p T leptons

Barton, Adam and Borissov, Guennadi and Bouhova-Thacker, Eva and Brodbeck, Timothy and Chilingarov, Alexandre and Davidson, Ruth and de Mora, Lee and Dearnaley, William and Fox, Harald and Henderson, Robert and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin and Love, Peter and Ratoff, Peter and Smizanska, Maria and Walder, James (2012) 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-p T leptons. Journal of High Energy Physics, 2012 (5). ISSN 1029-8479

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Abstract

A measurement is reported of the production cross section of top-quark pairs (t t¯ ) 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 t t¯ 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.

Item Type:
Journal Article
Journal or Publication Title:
Journal of High Energy Physics
Additional Information:
This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
68176
Deposited By:
Deposited On:
21 Dec 2013 00:04
Refereed?:
Yes
Published?:
Published
Last Modified:
12 Jul 2020 04:34