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Study of Double Parton Scattering Using W + 2-Jet Events in Proton-Proton Collisions at $\sqrt{s}$ = 7 TeV

The CMS collaboration
JHEP 03 (2014) 032, 2014.

Abstract (data abstract)
CERN-LHC. Double parton scattering is investigated in proton-proton collisions at sqrt(s) = 7 TeV where the final state includes a W boson, which decays into a muon and a neutrino, and two jets. The data sample corresponds to an integrated luminosity of 5 inverse femtobarns, collected with the CMS detector at the LHC. Observables sensitive to double parton scattering are investigated after being corrected for detector effects and selection efficiencies. The fraction of W + 2-jet events due to double parton scattering is measured to be 0.055 +/- 0.002 (stat.) +/- 0.014 (syst.). The effective cross section, sigma[eff], characterizing the effective transverse area of hard partonic interactions in collisions between protons is measured to be 20.7 +/- 0.8 (stat.) +/- 6.6 (syst.) mb.

  • Table 1


    Visible cross section for W+2 jet: one muon $(p_{T} > 35.0~GeV/c~\ |\eta|~<~2.1)$ missing transverse energy $> 30.0 GeV$ Transverse Mass...

  • Table 2

    Data from Figure 4a


    No description provided.

  • Table 3

    Data from Figure 4b


    No description provided.

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