TY - JOUR AU - ATLAS Collaboration (Aad, G. et al AU - Aparisi Pozo, J. A. AU - Bailey, A. J. AU - Cabrera Urban, S. AU - Cardillo, F. AU - Castillo, F. L. AU - Castillo Gimenez, V. AU - Costa, M. J. AU - Escobar, C. AU - Estrada Pastor, O. AU - Ferrer, A. AU - Fiorini, L. AU - Fullana Torregrosa, E. AU - Fuster, J. AU - Garcia, C. AU - Garcia Navarro, J. E. AU - Gonzalez de la Hoz, S. AU - Gonzalvo Rodriguez, G. R. AU - Guerrero Rojas, J. G. R. AU - Higon-Rodriguez, E. AU - Lacasta, C. AU - Lozano Bahilo, J. J. AU - Mamuzic, J. AU - Marti-Garcia, S. AU - Martinez Agullo, P. AU - Mitsou, V. A. AU - Moreno Llacer, M. AU - Poveda, J. AU - Prades Ibañez, A. AU - Rodriguez Bosca, S. AU - Ruiz-Martinez, A. AU - Sabatini, P. AU - Salt, J. AU - Santra, A. AU - Sayago Galvan, I. AU - Soldevila, U. AU - Sanchez, J. AU - Torro Pastor, E. AU - Valero, A. AU - Valls Ferrer, J. A. AU - Villaplana Perez, M. AU - Vos, M. PY - 2021 DA - 2021// TI - Muon reconstruction and identification efficiency in ATLAS using the full Run 2 pp collision data set at root s = 13 TeV T2 - Eur. Phys. J. C JO - European Physical Journal C SP - 578 - 44pp VL - 81 IS - 7 PB - Springer AB - 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 -> μμand J/psi -> μμdecays, 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 |eta|<2.7. SN - 1434-6044 UR - https://arxiv.org/abs/2012.00578 UR - https://doi.org/10.1140/epjc/s10052-021-09233-2 DO - 10.1140/epjc/s10052-021-09233-2 LA - English N1 - WOS:000680861900001 ID - ATLASCollaborationAad_etal2021 ER -