Expected tracking performance of the ATLAS Inner Tracker at the High-Luminosity LHC

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dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbbott, D.C.
dc.contributor.authorAbed Abud, A.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbhayasinghe, D.K.
dc.contributor.authorIke
dc.date.accessioned2026-04-04T18:48:33Z
dc.date.available2026-04-04T18:48:33Z
dc.date.issued2025
dc.description.abstractThe high-luminosity phase of LHC operations (HL-LHC), will feature a large increase in simultaneous proton-proton interactions per bunch crossing up to 200, compared with a typical leveling target of 64 in Run 3. Such an increase will create a very challenging environment in which to perform charged particle trajectory reconstruction, a task crucial for the success of the ATLAS physics program, and will exceed the capabilities of the current ATLAS Inner Detector (ID). A new all-silicon Inner Tracker (ITk) will replace the current ID in time for the start of the HL-LHC. To ensure successful use of the ITk capabilities in Run 4 and beyond, the ATLAS tracking software has been successfully adapted to achieve state-of-the-art track reconstruction in challenging high-luminosity conditions with the ITk detector. This paper presents the expected tracking performance of the ATLAS ITk based on the latest available developments since the ITk technical design reports. © 2025 CERN for the benefit of the ATLAS collaboration.
dc.description.sponsorshipMinisterio de Ciencia, Innovación y Universidades, MCIU; Agencia Nacional de Investigación y Desarrollo; BNL; Australian Research Council, ARC; Israel Academy of Sciences and Humanities; DRAC; CERN DOCT; La Caixa Banking Foundation; Centre National pour la Recherche Scientifique et Technique, CNRST; Center for African Studies, CAS; Fundação para a Ciência e a Tecnologia, FCT; European Union, Future Artificial Intelligence Research; European Organization for Nuclear Research; FONDE-CYT; Ministero dell'Università e della Ricerca, MUR; Polish National Science Centre; Georgia Health Initiative, HGF; Narodowe Centrum Nauki, NCN; Grantová Agentura ?eské Republiky, GACR; Center for Advancing Research Impact in Society, ARIS; National Science Foundation, NSF; Baden-Württemberg Stiftung; Horizon 2020, ICSC-NextGenerationEU; Carl Tryggers Stiftelse för Vetenskaplig Forskning; H2020 Marie Sk?odowska-Curie Actions, MSCM; Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, FAPERJ; Nederlandse Organisatie voor Wetenschappelijk Onderzoek, NWO; Ministerio de Ciencia e Innovación, MCIN; Ministry of Science and Innovation; Istituto Nazionale di Fisica Nucleare; Ministry of Science and Higher Education; ICHEP; Leverhulme Trust; Baden-Württemberg Stiftung, BWS; Research Council of Norway; Japan Society for the Promotion of Science; Knut och Alice Wallenbergs Stiftelse; MVZI; PROMETEO; Spine Education and Research Institute, SERI; Neubauer Family Foundation, NFF; IDUB AGH; Ministry of Education Youth and Sports; Generalitat de Catalunya; Neubauer Family Foundation; Bundesministerium für Wissenschaft, Forschung und Wirtschaft, BMWFW; Austrian Science Fund, FWF; BCKDF; Narodowa Agencja Wymiany Akademickiej, NAWA; Yerevan Physics Institute; Leverhulme Trust; ERDF; Agencia Nacional de Investigación y Desarrollo, ANID; Bundesministerium für Bildung und Forschung, BMBF; Canada Foundation for Innovation, FCI; Danmarks Grundforskningsfond, DNRF; Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq; Forskningsrådet för hälsa, arbetsliv och välfärd, FORTE; Karlsruhe Institute of Technology, KIT; Canarie; GridKA; Göran Gustafssons Stiftelser; Deutsche Forschungsgemeinschaft, DFG; United States-Israel Binational Science Foundation, BSF; European Commission, EU; European Social Fund Plus, FSE; European Cooperation in Science and Technology, COST; COST; CRC; International Council of Shopping Centers, ICSC; RGC; Duchenne Research Fund, DRF; Generali-tat Valenciana; Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP; PRIMUS; Agencia Estatal de Investigación, AEI; ICSC; Institutul de Fizic? Atomic?, IFA; Natural Sciences and Engineering Research Council of Canada, NSERC; Chinese Ministry of Science and Technology; Swiss National Science Foundation; Marie Sk?odowska-Curie Actions; National Science and Technology Council, NSTC; EU; FONDECYT; Irish Rugby Football Union, IRFU; Cantons of Bern and Geneva; Agence Nationale de la Recherche; Defence Science Institute, DSI; National Natural Science Foundation of China; MSTDI; MNE; Agencia Nacional de Promoción Científica y Tecnológica, ANPCyT; Royal Society; Minerva Foundation; Marcus och Amalia Wallenbergs minnesfond, MMW; Royal Society; CERN-CZ; National Research Foundation, NRF; Ministerstwo Edukacji i Nauki, MNiSW; FAPERJ; European Research Council; Generalitat Valenciana, GVA; CERN, CERN; BARD, BARD; Ministerstvo Školství, Mláde?e a T?lov?chovy, MSMT; European Union; National Research Council Canada, CNRC; Vetenskapsrådet, VR; Alexander von Humboldt-Stiftung, AvH; Multiple Sclerosis Scientific Research Foundation, MSSRF; DFG; Horizon 2020; Istituto Nazionale di Fisica Nucleare, INFN; British Columbia Knowledge Development Fund, BCKDF; CANARIE; Ministry of Education, Culture, Sports, Science and Technology, MEXT; UK Research and Innovation, UKRI; European Research Council, ERC, (948254, 101089007); European Research Council, ERC; Czech Science Foundation, (GACR - 24-11373S); NextGenerationEU, NGEU, (PE00000013); NextGenerationEU, NGEU; H2020 European Research Council, (ERC - 101002463); U.S. Department of Energy, (ECA DE-AC02-76SF00515); FEDER, (IDIFEDER/2018/048); Science and Technology Facilities Council, STFC, (ST/W000547/1); Science and Technology Facilities Council, STFC; Norges Forskningsråd, (RCN-314472); Norges Forskningsråd; Japan Society for the Promotion of Science, KAKENHI, (JP22KK0227, JP22H04944, JP23KK0245, JP22H01227); Japan Society for the Promotion of Science, KAKENHI; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF, (RPG-2020-004, NIF-R1-231091, PCEFP2_194658); Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF; National Natural Science Foundation of China, NNSF, (12275265, 12175119, NSFC-12075060); National Natural Science Foundation of China, NNSF; H2020 European Research Council, ERC, (ERC - 101002463); H2020 European Research Council, ERC; BARD, (101116429); North Dakota Game and Fish Department, NDGF, (CC-IN2P3); North Dakota Game and Fish Department, NDGF; U.S. Department of Energy, FEA, (ECA DE-AC02-76SF00515); U.S. Department of Energy, FEA; NCN, (UMO-2023/51/B/ST2/00920, UMO-2023/49/B/ST2/04085, UMO-2020/37/B/ST2/01043, 2021/42/E/ST2/00350, UMO-2021/40/C/ST2/00187, UMO-2022/47/O/ST2/00148, 2022/47/B/ST2/03059, 2023/51/B/ST2/02507, UMO-2019/34/E/ST2/00393); Deutsche Forschungsgemeinschaft, (DFG - CR 312/5-2, DFG - 469666862); FAIR-NextGenerationEU, (PE00000013); Fondo Nacional de Desarrollo Científico y Tecnológico, FONDECYT, (1240864, 1230987, 1230812); Fondo Nacional de Desarrollo Científico y Tecnológico, FONDECYT; FORTE, (CZ.02.01.01/00/22_008/0004632, PRIMUS/21/SCI/017); European Regional Development Fund, ????, (IDIFEDER/2018/048); European Regional Development Fund, ????; MCIN, (RYC2019-028510-I, PID2021-125273NB, RYC2021-031273-I, RYC2022-038164-I, RYC2020-030254-I, PCI2022-135018-2); Swedish Research Council, (VR 2022-04683, VR 2018-00482, 2021-03651, VR 2023-03403, VR 2022-03845, 2023-04654); Polish National Agency for Academic Exchange, (PPN/PPO/2020/1/00002/U/00001); Agence Nationale de la Recherche, ANR, (ANR-20-CE31-0013, ANR-21-CE31-0013, ANR-22-EDIR-0002, ANR-21-CE31-0022); Agence Nationale de la Recherche, ANR; Carl Trygger Foundation, (CTS 22:2312); Ministero dell’Università e della Ricerca, (PRIN - 20223N7F8K - PNRR M4.C2.1.1); Ministry of Science and Technology of the People's Republic of China, MOST, (MOST-2023YFA1609300, MOST-2023YFA1605700); Ministry of Science and Technology of the People's Republic of China, MOST; DNSRC, (IN2P3-CNRS); Knut and Alice Wallenberg Foundation, (KAW 2018.0458, KAW 2019.0447, KAW 2022.0358); ERC, (101089007)
dc.identifier.doi10.1088/1748-0221/20/02/P02018
dc.identifier.issn1748-0221
dc.identifier.issue2
dc.identifier.scopus2-s2.0-105001207995
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1088/1748-0221/20/02/P02018
dc.identifier.urihttps://hdl.handle.net/11411/10220
dc.identifier.volume20
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherInstitute of Physics
dc.relation.ispartofJournal of Instrumentation
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_Scopus_20260402
dc.subjectCalibration
dc.subjectCluster Finding
dc.subjectFitting Methods
dc.subjectGaseous Imaging And Tracking Detectors
dc.subjectParticle Tracking Detectors (Solid-State Detectors)
dc.subjectPattern Recognition
dc.subjectVertexing Algorithms
dc.titleExpected tracking performance of the ATLAS Inner Tracker at the High-Luminosity LHC
dc.typeArticle

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