Evidence of Wγγ production in pp collisions at √s =8 TeV and limits on anomalous quartic gauge couplings with the ATLAS detector

Allison, Lee and Barton, Adam and Beattie, Michael and Borissov, Guennadi and Bouhova-Thacker, Eva and Chilingarov, Alexandre and Dearnaley, William and Fox, Harald and Grimm, Kathryn and Henderson, Robert and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin and Love, Peter and Maddocks, Harvey and Skinner, Malcolm and Smizanska, Maria and Walder, James and Wharton, Andy (2015) Evidence of Wγγ production in pp collisions at √s =8  TeV and limits on anomalous quartic gauge couplings with the ATLAS detector. Physical review letters, 115 (3). ISSN 1079-7114

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This letter reports evidence of triple gauge boson production pp→W(ℓν)γγ+X , which is accessible for the first time with the 8 TeV LHC data set. The fiducial cross section for this process is measured in a data sample corresponding to an integrated luminosity of 20.3  fb −1 , collected by the ATLAS detector in 2012. Events are selected using the W boson decay to eν or μν as well as requiring two isolated photons. The measured cross section is used to set limits on anomalous quartic gauge couplings in the high diphoton mass region.

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Physical review letters
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Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Date of acceptance not available
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11 Sep 2015 14:42
Last Modified:
15 Jul 2020 05:14