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Measurement of the W[superscript ±]Z production cross section and limits on anomalous triple gauge couplings in proton–proton collisions at √s = 7 TeV with the ATLAS detector

Author(s)
Taylor, Frank E.
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Abstract
This Letter presents a measurement of W[superscript ±]Z production in 1.02 fb[superscript −1] of pp collision data at √s = 7 TeV collected by the ATLAS experiment in 2011. Doubly leptonic decay events are selected with electrons, muons and missing transverse momentum in the final state. In total 71 candidates are observed, with a background expectation of 12.1 ± 1.4(stat.)[+4.1 over −2.0](syst.) events. The total cross section for W[superscript ±]Z production for Z/γ* masses within the range 66 GeV to 116 GeV is determined to be σ[tot over WZ] = 20.5[+3.1 over -2.8](stat.)[+1.4 over −1.3](syst.)[+0.9 over −0.8](lumi.) pb, which is consistent with the Standard Model expectation of 17.3[+1.3 over 0.8] pb. Limits on anomalous triple gauge boson couplings are extracted.
Date issued
2012-02
URI
http://hdl.handle.net/1721.1/92013
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physics Letters B
Publisher
Elsevier
Citation
Aad, G., B. Abbott, J. Abdallah, A.A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, et al. “Measurement of the W[superscript ±]Z Production Cross Section and Limits on Anomalous Triple Gauge Couplings in Proton–proton Collisions at √s = 7 TeV with the ATLAS Detector.” Physics Letters B 709, no. 4–5 (March 2012): 341–357. © 2012 CERN
Version: Final published version
ISSN
03702693

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