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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

ContributorsATLAS Collaboration
Published inPhysical Review Letters, vol. 123
Collection
  • Open Access - SCOAP3
Publication date2019
Abstract

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=2.89−0.48+0.51(stat)−0.28+0.29(syst) fb.

Citation (ISO format)
ATLAS Collaboration. 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. In: Physical Review Letters, 2019, vol. 123. doi: 10.1103/PhysRevLett.123.161801
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Article (Published version)
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ISSN of the journal0031-9007
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