Study of Double Parton Scattering Using W + 2-jet Events in Proton-proton Collisions at $\sqrt{s}$

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  • Study of Double Parton Scattering Using W + 2-jet Events in Proton-proton Collisions at $\sqrt{s}$ Book Detail

  • Author :
  • Release Date : 2014
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  • Genre :
  • Pages : 45
  • ISBN 13 :
  • File Size : 20,20 MB
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Study of Double Parton Scattering Using W + 2-jet Events in Proton-proton Collisions at $\sqrt{s}$ by PDF Summary

Book Description: Double parton scattering is investigated in proton-proton collisions at √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 fb-1, 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.). Finally, 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.

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