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

CMS Collaboration

Research output: Contribution to journalArticleResearchpeer-review

104 Citations (Scopus)

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, σeff, 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.
Original languageEnglish
Article number032
Number of pages45
JournalJournal of High Energy Physics
Volume2014
Issue number3
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • Jet physics
  • Hadron-Hadron Scattering
  • QCD

Cite this