# Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV

Abstract : 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.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00921191
Contributor : Sylvie Flores <>
Submitted on : Friday, December 20, 2013 - 7:11:11 AM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM

### Citation

S. Chatrchyan, S. Baffioni, F. Beaudette, P. Busson, C. Charlot, et al.. Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV. Journal of High Energy Physics, Springer, 2014, 03, pp.032. ⟨10.1007/JHEP03(2014)032⟩. ⟨in2p3-00921191⟩

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