Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/101674
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Type: Journal article
Title: A measurement of the ratio of the W and Z cross sections with exactly one associated jet in pp collisions at √s = 7 TeV with ATLAS
Other Titles: A measurement of the ratio of the W and Z cross sections with exactly one associated jet in pp collisions at root s = 7 TeV with ATLAS
Author: Aad, G.
ATLAS Collaboration
Citation: Physics Letters B, 2012; 708(3-5):221-240
Publisher: Elsevier
Issue Date: 2012
ISSN: 0370-2693
1873-2445
Statement of
Responsibility: 
G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration)
Abstract: The ratio of production cross sections of the W and Z bosons with exactly one associated jet is presented as a function of jet transverse momentum threshold. The measurement has been designed to maximise cancellation of experimental and theoretical uncertainties, and is reported both within a particle-level kinematic range corresponding to the detector acceptance and as a total cross-section ratio. Results are obtained with the ATLAS detector at the LHC in pp collisions at a centre-of-mass energy of 7 TeV using an integrated luminosity of 33 pb⁻¹. The results are compared with perturbative leading-order, leading-log, and next-to-leading-order QCD predictions, and are found to agree within experimental and theoretical uncertainties. The ratio is measured for events with a single jet with pτ > 30 GeV to be 8.73 ± 0.30(stat) ± 0.40(syst) in the electron channel, and 8.49 ± 0.23(stat) ± 0.33(syst) in the muon channel.
Keywords: W boson; Z boson; Standard Model; Perturbative QCD
Rights: © 2012 CERN. Published by Elsevier B.V. Open access under CC BY-NC-ND license.
RMID: 0020132927
DOI: 10.1016/j.physletb.2012.01.042
Appears in Collections:Physics publications

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