  The latest results of the ATLAS experiment for the production of a top-quark
pair in association with a photon using proton-proton collision data from the
LHC at a centre-of-mass energy of 13 TeV are summarised here. This includes
inclusive and differential cross-sections measurements performed in
single-lepton and dilepton final states in a fiducial volume corresponding to
the experimental acceptance.

High Energy Physics - Experiment