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

CMS Collaboration

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Abstract

The normalized differential cross section for top quark pair (tt‾) 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−1. The measurements are performed in the lepton+jets (e/μ+jets) and in the dilepton (e+e, μ+μ, and e±μ) decay channels. The tt‾ 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 tt‾ 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.
Original languageEnglish
Article number452
Number of pages39
JournalEuropean Physical Journal C
Volume75
Issue number11
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • Collisions
  • Bosons
  • Jets

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