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Measurement of the $t \bar{t}$ production cross section in the dilepton channel in pp collisions at $\sqrt{s}$ = 8 TeV

The CMS collaboration
JHEP 02 (2014) 024, 2014.

Abstract (data abstract)
CERN-LHC. The top-antitop quark (TOP TOPBAR) production cross section is measured in proton-proton collisions at a centre-of-mass energy of 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.

  • Table 1

    Data from T 3


    The total efficiencies etotal, i.e. the products of event acceptance, selection efficiency and branching fraction for the respective TOP TOPBAR...

  • Table 2

    Data from P 8


    The TOP TOPBAR cross section obtained by combining all final states.

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