# 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.
Type de document :
Article dans une revue
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2015, 75, pp.542. 〈10.1140/epjc/s10052-015-3709-x〉

http://hal.in2p3.fr/in2p3-01153175
Contributeur : Sylvie Flores <>
Soumis le : mardi 19 mai 2015 - 11:41:57
Dernière modification le : jeudi 8 février 2018 - 11:07:27

### Citation

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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