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Measurement of fiducial and differential W+W- production cross-sections at √s=13 TeV with the ATLAS detector

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Article number884
<mark>Journal publication date</mark>31/10/2019
<mark>Journal</mark>European Physical Journal D
Issue number10
Number of pages34
Publication StatusPublished
<mark>Original language</mark>English


A measurement of fiducial and differential cross-sections for W+W− production in proton–proton collisions at √s=13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 36.1 fb−1 is presented. Events with one electron and one muon are selected, corresponding to the decay of the diboson system as WW→e±νμν . To suppress top-quark background, events containing jets with a transverse momentum exceeding 35 GeV are not included in the measurement phase space. The fiducial cross-section, six differential distributions and the cross-section as a function of the jet-veto transverse momentum threshold are measured and compared with several theoretical predictions. Constraints on anomalous electroweak gauge boson self-interactions are also presented in the framework of a dimension-six effective field theory.