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In this work we compute for the first time the so-called Complete-NLOpredictions for top-quark pair hadroproduction in association with at least oneisolated photon ($ t \bar t \gamma$). We also compute NLO QCD+EW predictionsfor the similar case with at least two isolated photons ($ t \bar t\gamma\gamma$) and for single-top hadroproduction in association with at leastone isolated photon. In addition, we complement our results with NLO QCD+EWpredictions of the hadronic and leptonic decays of top-quark including anisolated photon. All these results have been obtained in a completely automatedapproach, by extending the capabilities of the MadGraph5_aMC@NLO framework andenabling the Complete-NLO predictions for processes with isolated photons inthe final state. We discuss the technical details of the implementation, whichinvolves a mixed EW renormalisation scheme for such processes.

Automated EW corrections with isolated photons: $t \bar t \gamma$, $t \bar t \gamma\gamma$ and $t \gamma j$ as case studies