Measurement of the tt‾ production cross section using events with one lepton and at least one jet in pp collisions at √s = 13 TeV

CMS Collaboration

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A measurement of the tt‾ production cross section at √s = 13TeV is presented using proton-proton collisions, corresponding to an integrated luminosity of 2.2 fb-1, collected with the CMS detector at the LHC. Final states with one isolated charged lepton (electron or muon) and at least one jet are selected and categorized according to the accompanying jet multiplicity. From a likelihood fit to the invariant mass distribution of the isolated lepton and a jet identied as coming from the hadronization of a bottom quark, the cross section is measured to be σtt‾ = 888 ± 2, (stat)+26-28 (syst) ± 20 (lumi) pb, in agreement with the standard model prediction. Using the expected dependence of the cross section on the pole mass of the top quark (mt), the value of mt is found to be 170.6 ± 2.7 GeV.
Original languageEnglish
Article number051
Number of pages40
JournalJournal of High Energy Physics
Issue number9
Publication statusPublished - 2017
Externally publishedYes


  • Hadron-Hadron scattering (experiments)
  • Top physics

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