Precision measurements of jet and photon production at ATLAS

The production of jets and prompt isolated photons at hadron colliders provides stringent tests of perturbative QCD. The latest measurements by the ATLAS experiment, using proton-proton collision data at $\sqrt{s}$ =13 TeV, are presented. Prompt inclusive photon production is measured for two distinct photon isolation cones, R=0.2 and 0.4, as well as for their ratio. The measurement is sensitive to gluon parton density distribution. Various measurements using TEEC and ATEEC event shapes are presented, as well as the determination of the strong coupling constant obtained from these observables. The measurement of new event-shape jet observables defined in terms of reference geometries with cylindrical and circular symmetries using the energy mover´s distance are discussed. The measurements are compared to state-of-the-art NLO and NNLO predictions.