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Bourdarios, C. Adam; Adamczyk, L.; Antrim, D. J. A.; Ferraz, V. Araujo; Arnaez, O.; Balaji, S.; Barnovska-Blenessy, Z.; Navarro, L. Barranco; Bauer, P.; Bellos, P.; Biondi, S.; Blocker, C.; Borisov, A.; Brau, J. E.; Calvet, S.; Calvetti, M.; Cameron, D.; Camincher, C.; Carrá, S.; Castro, N. F.; Cerny, K.; Chapman, J. D.; Chen, J.; Corrigan, E. E.; Donszelmann, T. Cuhadar; Da Via, C.; Dandoy, J. R.; De Maria, A.; Derkaoui, J. E.; Ciaccio, L. Di; Clemente, W. K. Di; Capriles, F. G. Diaz; D’onofrio, A.; Düren, M.; Faltova, J.; Faraj, M.; Formica, A.; Gabrielli, A.; Gargiulo, S.; Ghosh, A.; Giagu, S.; Goblirsch-Kolb, M.; Goshaw, A. T.; Gubbels, C.; Han, Y. F.; Hank, M. D.; Hasib, A.; Herde, H.; Hohn, D.; Ikegami, Y.; Ikeno, M.; Jejelava, J.; Kamenshchikov, A.; Kendrick, J.; Haghighat, S. Ketabchi; Kiryunin, A. E.; Konstantinidis, N.; Korolkov, I.; Kuehn, S.; Lacava, F.; Langenberg, R. J.; Lee, C. A.; Miotto, G. Lehmann; Leney, K. J. C.; Lyu, F.; Malyukov, S.; Martoiu, V. S.; Mashimo, T.; Mdhluli, J. E.; Meshreki, J. K. R.; Minashvili, I. A.; Mir, L. M.; Ocariz, J.; Ochoa, I.; Ohm, C. C.; Damazio, D. Oliveira; Madriz, R. G. Oreamuno; Pham, T.; Pizzini, A.; Manzano, M. Robles; Sabetta, L.; Saito, M.; Sapronov, A.; Schaefer, L.; Sioli, M.; Smith, H. A.; Stelzer, H. J.; Sultansoy, S.; Suzuki, S.; Teoh, J. J.; Terzo, S.; Tikhonov, Yu.A.; Uno, K.; Vari, R.; Vetterli, M. C.; Ward, C. P.; Weingarten, J.; Xu, R.; Zahreddine, J.; Zhou, N.
The European physical journal. C, Particles and fields, 07/2021, Letnik: 81, Številka: 7Journal Article
This article documents the muon reconstruction and identification efficiency obtained by the ATLAS experiment for 139 fb - 1 of pp collision data at s = 13 TeV collected between 2015 and 2018 during Run 2 of the LHC. The increased instantaneous luminosity delivered by the LHC over this period required a reoptimisation of the criteria for the identification of prompt muons. Improved and newly developed algorithms were deployed to preserve high muon identification efficiency with a low misidentification rate and good momentum resolution. The availability of large samples of Z → μ μ and J / ψ → μ μ decays, and the minimisation of systematic uncertainties, allows the efficiencies of criteria for muon identification, primary vertex association, and isolation to be measured with an accuracy at the per-mille level in the bulk of the phase space, and up to the percent level in complex kinematic configurations. Excellent performance is achieved over a range of transverse momenta from 3 GeV to several hundred GeV, and across the full muon detector acceptance of | η | < 2.7 .
