Measurement of the differential cross section for top quark pair production in pp collisions at √s = 8 TeV
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10052_2015_Article_3709.pdf
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Author(s)
Khachatryan, V.
Sirunyan, A. M
Tumasyan, A.
Adam, W.
Bergauer, T.
Dragicevic, M.
Erö, J.
Friedl, M.
Frühwirth, R.
Ghete, V. M
Date Issued
November 2015
Journal
The European Physical Journal C
Publisher
Springer Berlin Heidelberg
Citation
Khachatryan, V., et al. “Measurement of the Differential Cross Section for Top Quark Pair Production in Pp Collisions at √s= 8 TeV.” The European Physical Journal C, vol. 75, no. 11, Nov. 2015. © 2015 CERN for the benefit of the CMS collaboration
Version
Final published version
Abstract
The normalized differential cross section for top quark pair (t[bar over t]) production is measured in pp collisions at a centre-of-mass energy of 8 TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7 fb[superscript −1]. The measurements are performed in the lepton +jets ( e/μ +jets) and in the dilepton ( e[superscript +]e[superscript −], μ[superscript +]μ[superscript −], and e[superscript ±]μ[superscript ∓]) decay channels. The t[bar over t] cross section is measured as a function of the kinematic properties of the charged leptons, the jets associated to b quarks, the top quarks, and the t[bar over t] system. The data are compared with several predictions from perturbative quantum chromodynamic up to approximate next-to-next-to-leading-order precision. No significant deviations are observed relative to the standard model predictions.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1140/epjc/s10052-015-3709-x
