Performance of the ATLAS Trigger System in 2010
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Aad, G., Abbott, B., Abdallah, J. et al. Performance of the ATLAS Trigger System in 2010. Eur. Phys. J. C 72, 1849 (2012). [https://doi.org/10.1140/epjc/s10052-011-1849-1]
SponsorshipANPCyT ; YerPhI, Armenia; Australian Research Council; BMWF, Austria; Azerbaijan National Academy of Sciences (ANAS); SSTC, Belarus; National Council for Scientific and Technological Development (CNPq); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); Natural Sciences and Engineering Research Council of Canada; NRC, Canada; Canada Foundation for Innovation; CERN; Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT); Chinese Academy of Sciences; Ministry of Science and Technology, China; National Natural Science Foundation of China; Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias; Ministry of Education, Youth & Sports - Czech Republic Czech Republic Government; DNRF, Denmark; Danish Natural Science Research Council; Lundbeckfonden; European Union (EU); Centre National de la Recherche Scientifique (CNRS); CEA-DSM/I RFU, France; GNAS, Georgia; Federal Ministry of Education & Research (BMBF); German Research Foundation (DFG); HGF, Germany; Max Planck Society; Alexander von Humboldt Foundation; Greek Ministry of Development-GSRT; Israel Science Foundation; MINERVA, Israel; German-Israeli Foundation for Scientific Research and Development; DIP, Israel; Benoziyo Center, Israel; Istituto Nazionale di Fisica Nucleare (INFN); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science; CNRST, Morocco; FOM (The Netherlands) Netherlands Government; Netherlands Organization for Scientific Research (NWO) Netherlands Government; RCN, Norway; Ministry of Science and Higher Education, Poland; GRICES, Portugal; Portuguese Foundation for Science and Technology; MERYS (MECTS), Romania; MES of Russia; Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; Slovenian Research Agency - Slovenia; MVZT, Slovenia; DST/NRF, South Africa; Spanish Government; SRC, Sweden; Wallenberg Foundation, Sweden; SER, Switzerland; Swiss National Science Foundation (SNSF); Cantons of Bern, Switzerland; Geneva, Switzerland; National Science Council of Taiwan; Ministry of Energy & Natural Resources - Turkey; Royal Society of London; Leverhulme Trust; United States Department of Energy (DOE); National Science Foundation (NSF); ICREA; Science & Technology Facilities Council (STFC) ST/J004928/1 ATLAS Upgrade ST/K001418/1 ST/J004944/1 GRIDPP ST/H001093/2 ST/H001026/1 ST/J005576/1 ST/M001474/1 ST/H001069/2 ATLAS ST/K003658/1 ST/K001248/1 ATLAS ST/G502320/1 ST/L001144/1 ST/K001361/1 ST/H001093/1 ST/I006080/1 ST/H001026/2 ST/K00073X/1 ST/K001329/1 ATLAS PP/E000347/1 ST/J002798/1 ST/K001361/1 LHCb ST/K001264/1 ATLAS ST/K001337/1 ST/K001361/1 ATLAS ST/I005803/1 GRIDPP PP/E003699/1 ST/I005803/1 ST/L000970/1 ST/K001337/1 ATLAS ST/M001431/1 ST/K001248/1 ST/I000186/1 PP/E003087/1 ST/L000970/1 ATLAS Upgrade ST/K001361/1 MINOS/MINOS+ ST/I003525/1 ST/L001004/1 ST/J004928/1 ST/I003517/1 ST/F007337/1 ST/K001361/1 ATLAS Upgrades ST/K001361/1 LHCb Upgrades ST/K003658/1 GRIDPP ST/I003142/1 PP/E003699/2
Proton–proton collisions at √s = 7 TeV and heavy ion collisions at √sNN = 2.76 TeV were produced by the LHC and recorded using the ATLAS experiment’s trigger system in 2010. The LHC is designed with a maximum bunch crossing rate of 40 MHz and the ATLAS trigger system is designed to record approximately 200 of these per second. The trigger system selects events by rapidly identifying signatures of muon, electron, photon, tau lepton, jet, and B meson candidates, as well as using global event signatures, such as missing transverse energy. An overview of the ATLAS trigger system, the evolution of the system during 2010 and the performance of the trigger system components and selections based on the 2010 collision data are shown. A brief outline of plans for the trigger system in 2011 is presented.