Abstract
Measurements of differential $t\bar t$ production cross sections are presented in the single-lepton decay channel, as a function of a number of kinematic event variables. The measurements are performed with proton-proton collision data at $\sqrt s=13 TeV$, collected by the CMS experiment at the LHC during 2016, with an integrated luminosity of $35.9 fb^{−1}$. The data are compared to a variety of state-of-the-art leading-order and next-to-leading-order $t\bar t$ simulations.