Электронный каталог

Статья

Aad, G.
A Precise Measurement of the Jet Energy Scale Derived from Single-Particle Measurements and in Situ Techniques in Proton-Proton Collisions at *%s=13 TeV with the ATLAS Detector / G.Aad, F.Ahmadov, I.N.Aleksandrov, V.A.Bednyakov, I.R.Boyko, G.Chelkov, A.Cheplakov, M.V.Chizhov, D.V.Dedovich, M.Demichev, A.R.Didenko, M.I.Gostkin, S.N.Karpov, Z.M.Karpova, U.Kruchonak, V.Kukhtin, Y.Kulchitsky, E.Ladygin, V.Lyubushkin, T.Lyubushkina, S.Malyukov, M.Mineev, E.Plotnikova, I.N.Potrap, N.A.Rusakovich, M.Shiyakova, A.Soloshenko, A.Tropina, P.V.Tsiareshka, T.Turtuvshin, A.Vasyukov, I.Yeletskikh, A.Zhemchugov, N.I.Zimine, [ATLAS Collab.]. – Text : electronic // The European Physical Journal C. – 2025. – Vol. 85, No. 9. – P. 927. – URL: https://doi.org/10.1140/epjc/s10052-025-14409-1. – Bibliogr.: 67.

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-k&sub(T) jets with a jet radius parameter of R&sub(jet) = 0.4 and in the central jet rapidity region is about 2.5% for transverse momenta (p&sub(T)) of 20 GeV, about 0.5% for p&sub(T) = 300 GeV and 0.7% for p&sub(T) = 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 p&sub(T) = 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 Rjet 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.



ОИЯИ = ОИЯИ (JINR)2025