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Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV

Abstract : The normalized differential cross section for top quark pair (ttbar) 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 inverse femtobarns. The measurements are performed in the lepton+jets (e/mu+jets) and in the dilepton (e e, mu mu, and e mu) decay channels. The ttbar 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 ttbar system. The data are compared with several predictions from perturbative QCD up to approximate next-to-next-to-leading-order precision. No significant deviations are observed relative to the standard model predictions.
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http://hal.in2p3.fr/in2p3-01153175
Contributor : Sylvie Flores <>
Submitted on : Tuesday, May 19, 2015 - 11:41:57 AM
Last modification on : Friday, June 5, 2020 - 10:52:08 AM

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V. Khachatryan, M. Besancon, F. Couderc, M. Dejardin, D. Denegri, et al.. Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2015, 75, pp.542. ⟨10.1140/epjc/s10052-015-3709-x⟩. ⟨in2p3-01153175⟩

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