ATLAS CollaborationAlbert, JustinDavid, ClaireElliot, Alison A.Fincke-Keeler, J.Hamano, KenjiHill, Ewan ChinKeeler, RichardKowalewski, RobertKuwertz, E. S.Kwan, TonyLeBlanc, Matthew EdgarLefebvre, MichelMcPherson, Robert A.Pearce, James D.Seuster, RolfSobie, Randall J.Trovatelli, M.Venturi, M.2020-03-252020-03-2520172017ATLAS Collaboration. (2017). Observation of the hyperfine spectrum of antihydrogen. Physics Letters B, 773, 354-374. DOI: 10.1016/j.physletb.2017.08.047https://doi.org/10.1016/j.physletb.2017.08.047http://hdl.handle.net/1828/11641The production of opposite-charge W-boson pairs in proton–proton collisions at TeV is measured using data corresponding to 3.16 fb−1 of integrated luminosity collected by the ATLAS detector at the CERN Large Hadron Collider in 2015. Candidate W-boson pairs are selected by identifying their leptonic decays into an electron, a muon and neutrinos. Events with reconstructed jets are not included in the candidate event sample. The cross-section measurement is performed in a fiducial phase space close to the experimental acceptance and is compared to theoretical predictions. Agreement is found between the measurement and the most accurate calculations available.enArticle