Study of double parton scattering using W + 2-jet events in proton-proton collisions at √s = 7 TeV
Author(s)
Apyan, Aram; Busza, Wit; Cali, Ivan Amos; Chan, M.; Di Matteo, Leonardo; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Gulhan, Doga Can; Klute, Markus; Lai, Yue Shi; Ma, Teng; Paus, Christoph M. E.; Ralph, Duncan Kelley; Roland, Cristof E.; Stephans, George S. F.; Velicanu, Dragos Alexandru; Veverka, Jan; Wyslouch, Boleslaw; Yoon, A. S.; Zanetti, Marco; Dutta, Valentina; Lee, Yen-Jie; Luckey Jr, P David; Sumorok, Konstanty C; Yang, Mingming; Roland, Christof E; Barbieri, Richard Alexander; Levin, Andrew Michael; Roland, Gunther M; Stoeckli, Fabian; Wyslouch, Victoria; Bauer, Gerry P; ... Show more Show less
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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[superscript −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 [subscript 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.
Date issued
2014-03Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. School of ScienceJournal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Study of Double Parton Scattering Using W + 2-Jet Events in Proton-Proton Collisions at √s = 7 TeV.” J. High Energ. Phys. 2014, no. 3 (March 2014). © CERN, for the benefit of the CMS Collaboration
Version: Final published version
ISSN
1029-8479
1126-6708