Event Kinematic Distributions in Top-Quark Enriched Samples from $\sqrt{s} = 13$ TeV $pp$ Collisions in the ATLAS Detector.

The ATLAS experiment at the Large Hadron Collider at CERN collected a data set of proton- proton collisions at $\sqrt{s}=13$ TeV with an integrated luminosity of $6~\mbox{pb}^{-1}$ during June 2015. Kinematic distributions are presented for selected data samples in regions dominated by either the single-lepton or dilepton $t\bar{t}$ decay modes. Clear evidence for the production of top-quark pairs is observed in both the single lepton and dilepton channels.