/ hep-ex CMS-TOP-12-028

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

Pages: 65

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.

Note: Submitted to EPJC

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Запись создана 2015-06-01, последняя модификация 2015-06-01

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