@misc{10481/70912, year = {2021}, month = {7}, url = {http://hdl.handle.net/10481/70912}, abstract = {The ATLAS experiment at the Large Hadron Collider (LHC) employs a trigger system consisting of a first-level hardware trigger (L1) and a software-based high-level trigger. The L1 muon trigger system selects muon candidates, assigns them to the correct LHC bunch crossing and classifies them into one of six transverse-momentum threshold classes. The L1 muon trigger system uses resistive-plate chambers (RPCs) to generate the muon-induced trigger signals in the central (barrel) region of the ATLAS detector. The ATLAS RPCs are arranged in six concentric layers and operate in a toroidal magnetic field with a bending power of 1.5 to 5.5 Tm. The RPC detector consists of about 3700 gas volumes with a total surface area of more than 4000 m(2). This paper reports on the performance of the RPC detector and L1 muon barrel trigger using 60.8 fb(-1) of proton-proton collision data recorded by the ATLAS experiment in 2018 at a centre-of-mass energy of 13 TeV. Detector and trigger performance are studied using Z boson decays into a muon pair. Measurements of the RPC detector response, efficiency, and time resolution are reported. Measurements of the L1 muon barrel trigger efficiencies and rates are presented, along with measurements of the properties of the selected sample of muon candidates. Measurements of the RPC currents, counting rates and mean avalanche charge are performed using zero-bias collisions. Finally, RPC detector response and efficiency are studied at different high voltage and front-end discriminator threshold settings in order to extrapolate detector response to the higher luminosity expected for the High Luminosity LHC.}, organization = {ANPCyT}, organization = {YerPhI, Armenia}, organization = {Australian Research Council}, organization = {BMWFW}, organization = {Austrian Science Fund (FWF)}, organization = {Azerbaijan National Academy of Sciences (ANAS)}, organization = {SSTC, Belarus}, organization = {Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)}, organization = {Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)}, organization = {Natural Sciences and Engineering Research Council of Canada (NSERC) NRC, Canada Canada Foundation for Innovation}, organization = {CERN}, organization = {ANID, Chile}, organization = {Chinese Academy of Sciences Ministry of Science and Technology, China National Natural Science Foundation of China (NSFC)}, organization = {Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias}, organization = {MSMT CR, Czech Republi Czech Republic Government}, organization = {DNRF, Denmark Danish Natural Science Research Council}, organization = {Centre National de la Recherche Scientifique (CNRS) CEA-DRF/IRFU, France}, organization = {SRNSFG, Georgia}, organization = {Federal Ministry of Education & Research (BMBF)}, organization = {HGF, Germany}, organization = {Max Planck Society}, organization = {Greek Ministry of Development-GSRT}, organization = {RGC, China Hong Kong SAR, China}, organization = {Israel Science Foundation Benoziyo Center, Israel}, organization = {Istituto Nazionale di Fisica Nucleare (INFN)}, organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science}, organization = {CNRST, Morocco}, organization = {Netherlands Organization for Scientific Research (NWO) Netherlands Government}, organization = {RCN, Norway}, organization = {Ministry of Science and Higher Education, Poland NCN, Poland}, organization = {Portuguese Foundation for Science and Technology European Commission}, organization = {MNE/IFA, Romania}, organization = {JINR}, organization = {MES of Russia NRC KI, Russian Federation}, organization = {Ministry of Education, Science & Technological Development, Serbia}, organization = {MSSR, Slovakia}, organization = {Slovenian Research Agency - Slovenia MIZS, Slovenia}, organization = {DST/NRF, South Africa}, organization = {Spanish Government}, organization = {SRC, Sweden Wallenberg Foundation, Sweden}, organization = {SERI, Switzerland Swiss National Science Foundation (SNSF) Cantons of Bern and Geneva, Switzerland}, organization = {Ministry of Science and Technology, Taiwan}, organization = {Ministry of Energy & Natural Resources - Turkey}, organization = {UK Research & Innovation (UKRI)}, organization = {Science & Technology Facilities Council (STFC)}, organization = {United States Department of Energy (DOE)}, organization = {National Science Foundation (NSF)}, organization = {United States of America}, organization = {European Commission}, organization = {Greek NSRF, Greece}, organization = {BSF-NSF}, organization = {German-Israeli Foundation for Scientific Research and Development}, organization = {La Caixa Foundation CERCA Programme Generalitat de Catalunya PROMETEO and GenT Programmes Generalitat Valenciana, Spain}, organization = {Goran Gustafssons Stiftelse, Sweden}, organization = {Royal Society of London}, organization = {European Commission}, organization = {Leverhulme Trust}, publisher = {Institute of Physics Publishing}, keywords = {Gaseous detectors}, keywords = {Muon spectrometers}, keywords = {Resistive-plate chambers}, keywords = {Trigger detectors}, title = {Performance of the ATLAS RPC detector and Level-1 muon barrel trigger at root s=13 TeV}, doi = {10.1088/1748-0221/16/07/P07029}, author = {Aad, G. and Aguilar Saavedra, Juan Antonio and Atlas Collaboration}, }