Measurement of fiducial and differential $W^+W^-$ production cross-sections at $\sqrt{s}=$13 TeV with the ATLAS detector

The ATLAS collaboration
Aaboud, Morad , Aad, Georges , Abbott, Brad , Abbott, Dale Charles , Abdinov, Ovsat , Abed Abud, Adam , Abhayasinghe, Deshan Kavishka , Abidi, Syed Haider , Abouzeid, Ossama , Abraham, Nicola
Eur.Phys.J.C 79 (2019) 884, 2019.

Abstract (data abstract)
CERN-LHC. A measurement of fiducial and differential cross-sections for W+W- production in proton-proton collisions at sqrt(s)=13 TeV with the ATLAS experiment at the Large Hadron Collider using an integrated luminosity of 36.1fb-1 is presented. Events with one electron and one muon are selected, corresponding to the decay of the diboson system as WW->e nu mu nu. 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 weak boson self-interactions are also presented in the framework of a dimension-six effective field theory.

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