Measurement of the tt̄ production cross section in the dilepton channel in pp collisions at √s = 8 TeV

The CMS collaboration

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Abstract

The top-antitop quark (tt̄) production cross section is measured in proton-proton collisions at √s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb -1. The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239 ± 2 (stat.) ± 11 (syst.) ± 6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the prediction of the standard model.

Original languageEnglish
Article number24
JournalJournal of High Energy Physics
Volume2014
Issue number2
DOIs
StatePublished - 1 Feb 2014

Keywords

  • Hadron-Hadron Scattering
  • Top physics

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