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Measurement of jet multiplicity distributions in $\mathrm {t}\overline{\mathrm {t}}$ production in pp collisions at $\sqrt{s} = 7\,\text {TeV} $

The CMS collaboration
Eur.Phys.J. C74 (2015) 3014, 2015

Abstract (data abstract)
CERN-LHC. The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data collected in 2011 corresponding to an integrated luminosity of 5.0 inverse femtobarns. Using a procedure to associate jets to decay products of the top quarks, the differential top quark-antiquark production cross section is also determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum.

  • Table 1

    Data from Table 1

    10.17182/hepdata.64426.v1/t1

    Normalised differential TOP TOPBAR production cross section as a function of the jet multiplicity for jets with PT(JET) > 30...

  • Table 2

    Data from Table 2

    10.17182/hepdata.64426.v1/t2

    Normalised differential TOP TOPBAR production cross section as a function of the jet multiplicity for jets with PT(JET) > 60...

  • Table 3

    Data from Table 3

    10.17182/hepdata.64426.v1/t3

    Normalised differential TOP TOPBAR production cross section as a function of the jet multiplicity for jets with PT(JET) > 35...

  • Table 4

    Data from Table 4

    10.17182/hepdata.64426.v1/t4

    Normalised differential TOP TOPBAR production cross section as a function of the number of additional jets with PT(JET) > 30...

  • Table 5

    Data from Table 5

    10.17182/hepdata.64426.v1/t5

    Measured gap fraction in the dilepton channel as a function of the additional jet transverse momentum, GAPFRAC(PT) = N(PT)/N(TOTAL) where...

  • Table 6

    Data from Table 6

    10.17182/hepdata.64426.v1/t6

    Measured gap fraction in the dilepton channel as a function of the scalar sum of the transverse momentum of the...

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