CMS-PAS-TOP-15-003

CMS-PAS-TOP-15-003
Measurement of the top quark pair production cross section in proton-proton collisions at $\sqrt{s}=$ 13 TeV with the CMS detector
CMS Collaboration
August 2015

Abstract: The top-antitop quark ( $\mathrm{ t \bar{t} }$ ) production cross section is measured for the first time by the CMS experiment in proton-proton collisions at $\sqrt{s} =$ 13 TeV at the CERN LHC, using data corresponding to an integrated luminosity of 42 pb $^{-1}$ . The measurement is performed by analyzing events with one electron and one muon and at least two jets. The measured cross section is $\sigma_{\mathrm{ t \bar{t} }} =$ 772 $\pm$ 60 (stat) $\pm$ 62 (syst) $\pm$ 93 (lumi) pb, in agreement with the expectations from the standard model.
Links: CDS record (PDF) ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; These preliminary results are superseded in this paper, PRL 116 (2016) 052002. The superseded preliminary plots can be found here.

CMS Publications