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Study of double parton scattering using W + 2-jet events in proton-proton collisions at s√ = 7 TeV
CMS Collaboration Sanders, Stephen J.
CMS Collaboration
Sanders, Stephen J.
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Abstract
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.). The effective cross section, σ 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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Date
2014-03
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Springer Verlag
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Keywords
Jet physics, Hadron-Hadron Scattering, QCD
Citation
The CMS collaboration. "Study of double parton scattering using W + 2-jet events in proton-proton collisions at s√ = 7 TeV." Journal of High Energy Physics. March, 2014: v5 n3. http://dx.doi.org/10.1007/JHEP03(2014)032