Measurement of the top quark pair cross section with ATLAS in pp collisions at √s = 7 TeV using final states with an electron or a muon and a hadronically decaying τ lepton
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Aad-2012-Measurement of the t.pdf
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1.11 MB
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10ca6978c6975087cbe269921b7698f7
Author(s)
Taylor, Frank E.
Date Issued
September 2012
Journal
Physics Letters B
Publisher
Elsevier
Citation
Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, A.A. Abdelalim, O. Abdinov, B. Abi, et al. “Measurement of the Top Quark Pair Cross Section with ATLAS in Pp Collisions at √s = 7 TeV Using Final States with an Electron or a Muon and a Hadronically Decaying τ Lepton.” Physics Letters B 717, no. 1–3 (October 2012): 89–108. © 2012 CERN
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Final published version
Abstract
A measurement of the cross section of top quark pair production in proton–proton collisions recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 7 TeV is reported. The data sample used corresponds to an integrated luminosity of 2.05 fb[superscript −1]. Events with an isolated electron or muon and a τ lepton decaying hadronically are used. In addition, a large missing transverse momentum and two or more energetic jets are required. At least one of the jets must be identified as originating from a b quark. The measured cross section, σ[subscript t [bar over t]] = 186±13 (stat.) ±20 (syst.) ± 7 (lumi.) pb, is in good agreement with the Standard Model prediction.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1016/j.physletb.2012.09.032
