Jet calibration, substructure techniques and preparation for the HL-LHC in ATLAS

The determination of the jet energy and mass scale and the achievement of the optimal jet performance is of key importance to many LHC analyses with jets in their final state. Depending on the event topology, the decay products of a particle can be well-separated or merged in the detector and small-radius and large-radius jets, respectively are used to reconstruct the event. A summary of the calibration scheme, preparation for the high-luminosity LHC and latest results on top tagging algorithm and jet charge measurements in ATLAS are presented.