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

摘要

Abstract A measurement of fiducial and differential cross-sections for $$W^+W^-$$ W+W- production in proton–proton collisions at $$sqrt{s}=13$$ s=13  TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 36.1 $$hbox {fb}^{-1}$$ fb-1 is presented. Events with one electron and one muon are selected, corresponding to the decay of the diboson system as $$WWightarrow e^{pm }u mu ^{mp }u $$ WW→e±νμ∓ν . 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.