Measurements of the inclusive and differential production cross sections of a top-quark-antiquark pair in association with a Z boson at vs = 13 TeV with the ATLAS detector

Abstract

Measurements of the inclusive and differential production cross sections of a top-quark-antiquark pair in association with a Z boson (ttZ ¯) are presented in these proceedings. The measurements are performed using full Run 2 data that corresponds to an integrated luminosity of 139 fb-1 and was collected with the ATLAS detector at the CERN Large Hadron Collider. The inclusive cross section, which is measured to be sttZ ¯ = 0.99 ± 0.05 (stat) ± 0.08 (syst.) pb, and the differential cross section measurements are in good agreement with the Standard Model predictions.