Chan, StephenClark, Brian LeeFranklin, MelissaGiromini, PaoloHuth, JohnIppolito, ValerioLazovich, TomoLopez Mateos, DavidMorii, MasahiroRogan, Christopher S.Roloff, JenniferSkottowe, Hugh PhilipSun, SiyuanTolley, EmmaTong, BaojiaTuna, AlexanderZambito, Stefano2017-06-062017ATLAS Collaboration. 2017. “Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at s√=13 TeV using the ATLAS detector.” The European Physical Journal C 77 (5) (May). doi:10.1140/epjc/s10052-017-4821-x.1434-6044http://nrs.harvard.edu/urn-3:HUL.InstRepos:32785059This article presents measurements of tt¯ differential cross-sections in a fiducial phase-space region, using an integrated luminosity of 3.2 fb−1 of proton--proton data at a centre-of-mass energy of s√=13 TeV recorded by the ATLAS experiment at the LHC in 2015. Differential cross-sections are measured as a function of the transverse momentum and absolute rapidity of the top quark, and of the transverse momentum, absolute rapidity and invariant mass of the tt¯ system. The tt¯ events are selected by requiring one electron and one muon of opposite electric charge, and at least two jets, one of which must be tagged as containing a b-hadron. The measured differential cross-sections are compared to predictions of next-to-leading order generators matched to parton showers and the measurements are found to be consistent with all models within the experimental uncertainties with the exception of the POWHEG-Box + HERWIG++ predictions, which differ significantly from the data in both the transverse momentum of the top quark and the mass of the tt¯ system.en-USJournal Article2017-06-0610.1140/epjc/s10052-017-4821-x