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https://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: Nuclear Physics and Particle Physics, 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. |
DOI: | 10.1016/j.physletb.2012.01.042 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1016/j.physletb.2012.01.042 |
Appears in Collections: | Aurora harvest 7 Physics publications |
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hdl_101674.pdf | Published version | 1.25 MB | Adobe PDF | View/Open |
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