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Measurement of W[superscript ±]Z Production in proton-proton collisions at √s =7 TeV with the ATLAS detector

Author(s)
Taylor, Frank E
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Alternative title
Measurement of W±Z production in proton-proton collisions at √s = 7 TeV with the ATLAS detector
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Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/
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Abstract
A study of W[superscript ±]Z production in proton-proton collisions at √s = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb[superscript −1] collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68 ± 10 events, are observed in double-leptonic decay final states with electrons, muons and missing transverse momentum. The total cross-section is determined to be σ[superscript tot][subscript WZ] = 19.0[superscript +1.4][subscript −1.3](stat.) ± 0.9(syst.) ± 0.4(lumi.) pb, consistent with the Standard Model expectation of 17.6[superscript +1.1] [subscript−1.0] pb. Limits on anomalous triple gauge boson couplings are derived using the transverse momentum spectrum of Z bosons in the selected events. The cross-section is also presented as a function of Z boson transverse momentum and diboson invariant mass.
Date issued
2012-10
URI
http://hdl.handle.net/1721.1/105735
Department
Massachusetts Institute of Technology. Department of Physics
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
The ATLAS Collaboration et al. “Measurement of W[superscript ±]Z Production in Proton-Proton Collisions at √s =7 TeV with the ATLAS Detector.” The European Physical Journal C 72.10 (2012): n. pag. CrossRef. Web. 7 Dec. 2016.© 2012 CERN for the benefit of the ATLAS collaboration.
Version: Final published version
ISSN
1434-6044
1434-6052

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