Observation of electroweak production of a same-sign W boson pair in association with two jets in pp collisions at √s=13 TeV with the ATLAS detector
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Colleges, School and Institutes
This Letter presents the observation and measurement of electroweak production of a same-sign W boson pair in association with two jets using 36.1 fb−1 of proton-proton collision data recorded at a center-of-mass energy of √s=13 TeV by the ATLAS detector at the Large Hadron Collider. The analysis is performed in the detector fiducial phase-space region, defined by the presence of two same-sign leptons, electron or muon, and at least two jets with a large invariant mass and rapidity difference. A total of 122 candidate events are observed for a background expectation of 69±7 events, corresponding to an observed signal significance of 6.5 standard deviations. The measured fiducial signal cross section is σfid=2.89+0.51−0.48(stat)+0.29-0.28(syst) fb.
3 figures, 2 tables, final version published in Physical Review Letters. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-06
|Number of pages||21|
|Journal||Physical Review Letters|
|Publication status||Published - 15 Oct 2019|