Study of jets produced in association with a W boson in pp collisions at √s = 7  TeV with the ATLAS detector

dc.contributor.authorAad, G.
dc.contributor.authorATLAS Collaboration,
dc.date.issued2012
dc.description.abstractWe report a study of final states containing a W boson and hadronic jets, produced in proton-proton collisions at a center-of-mass energy of 7 TeV. The data were collected with the ATLAS detector at the CERN LHC and comprise the full 2010 data sample of 36  pb⁻¹. Cross sections are determined using both the electron and muon decay modes of the W boson and are presented as a function of inclusive jet multiplicity, Njet, for up to five jets. At each multiplicity, cross sections are presented as a function of jet transverse momentum, the scalar sum of the transverse momenta of the charged lepton, missing transverse momentum, and all jets, the invariant mass spectra of jets, and the rapidity distributions of various combinations of leptons and final-state jets. The results, corrected for all detector effects and for all backgrounds such as diboson and top quark pair production, are compared with particle-level predictions from perturbative QCD. Leading-order multiparton event generators, normalized to the next-to-next-to-leading-order total cross section for inclusive W-boson production, describe the data reasonably well for all measured inclusive jet multiplicities. Next-to-leading-order calculations from MCFM, studied here for Njet≤2, and BlackHat-Sherpa, studied here for Njet≤4, are found to be mostly in good agreement with the data.
dc.description.statementofresponsibilityG. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration)
dc.identifier.citationPhysical Review D: Particles, Fields, Gravitation and Cosmology, 2012; 85(9):092002-1-092002-40
dc.identifier.doi10.1103/PhysRevD.85.092002
dc.identifier.issn0556-2821
dc.identifier.issn1550-2368
dc.identifier.urihttp://hdl.handle.net/2440/102166
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.grantARC
dc.rights© 2012 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
dc.source.urihttps://doi.org/10.1103/physrevd.85.092002
dc.titleStudy of jets produced in association with a W boson in pp collisions at √s = 7  TeV with the ATLAS detector
dc.title.alternativeStudy of jets produced in association with a W boson in pp collisions at root s = 7TeV with the ATLAS detector
dc.typeJournal article
pubs.publication-statusPublished

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