Inclusive and differential measurements of the tt¯γ cross section and the tt¯γ/tt¯ cross section ratio in proton-proton collisions at s=13 TeV

Inclusive and differential cross section measurements of top quark pair (t (t) over bar) production in association with a photon (gamma) are performed as a function of lepton, photon, top quark, and t (t) over bar kinematic observables, using data from pr