The jet energy calibration and its uncertainties are derived from measurements of the calorimeter response to single particles in both data and Monte Carlo simulation using proton-proton collisions at s = 13 TeV collected with the ATLAS detector during Run 2 at the Large Hadron Collider. The jet calibration uncertainty for anti-kₜ jets with a jet radius parameter of R = 0. 4 and in the central jet rapidity region is about 2. 5% for transverse momenta (pT) of 20 GeV, about 0. 5% for pT = 300 GeV and 0. 7% for pT = 4 TeV. Excellent agreement is found with earlier determinations obtained from pT-balance based in situ methods (Z/γ+jets). The combination of these two independent methods results in the most precise jet energy measurement achieved so far with the ATLAS detector with a relative uncertainty of 0. 3% at pT = 300 GeV and 0. 6% at 4 TeV. The jet energy calibration is also derived with the single-particle calorimeter response measurements separately for quark- and gluon-induced jets and furthermore for jets with R varying from 0. 2 to 1. 0 retaining the correlations between these measurements. Differences between inclusive jets and jets from boosted top-quark decays, with and without grooming the soft jet constituents, are also studied.
ATLAS collab. (Wed,) studied this question.