Anomalous couplings in the tt+Z final state at the HL-LHC

The electroweak couplings of the top quark provide a crucial window to physics beyond the standard model and can be put to stringent tests with the CERN High-Luminosity LHC (HL-LHC). The expected sensitivity of the CMS detector for anomalous electroweak top quark interactions based on differential cross section measurements of the $\mathrm{t\overline{t}Z}$ process in the three lepton final state is provided for a HL-LHC scenario with 3000 fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy of 14 TeV.