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Evidence for Electroweak Production of W[superscript ±]W[superscript ±]jj in pp Collisions at √s = 8 TeV with the ATLAS Detector

Author(s)
Taylor, Frank E.
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Abstract
This Letter presents the first study of W[superscript ±]W[superscript ±]jj, same-electric-charge diboson production in association with two jets, using 20.3  fb[superscript −1] of proton-proton collision data at √s = 8  TeV recorded by the ATLAS detector at the Large Hadron Collider. Events with two reconstructed same-charge leptons (e[superscript ±]e[superscript ±], e[superscript ±]μ[superscript ±], and μ[superscript ±]μ[superscript ±]) and two or more jets are analyzed. Production cross sections are measured in two fiducial regions, with different sensitivities to the electroweak and strong production mechanisms. First evidence for W[superscript ±]W[superscript ±]jj production and electroweak-only W[superscript ±]W[superscript ±]jj production is observed with a significance of 4.5 and 3.6 standard deviations, respectively. The measured production cross sections are in agreement with standard model predictions. Limits at 95% confidence level are set on anomalous quartic gauge couplings.
Date issued
2014-10
URI
http://hdl.handle.net/1721.1/91223
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Evidence for Electroweak Production of W[superscript ±]W[superscript ±]jj in pp Collisions at √s = 8 TeV with the ATLAS Detector.” Physical Review Letters 113, no. 14 (October 2014). © 2014 CERN, for the ATLAS Collaboration
Version: Final published version
ISSN
0031-9007
1079-7114

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