Software and computing for Run 3 of the ATLAS experiment at the LHC

Summary, in English

The ATLAS experiment has developed extensive software and distributed computing systems for Run 3 of the LHC. These systems are described in detail, including software infrastructure and workflows, distributed data and workload management, database infrastructure, and validation. The use of these systems to prepare the data for physics analysis and assess its quality are described, along with the software tools used for data analysis itself. An outlook for the development of these projects towards Run 4 is also provided. © The Author(s) 2025.

• Author: G. Aad; T.P.A. Åkesson; K.S.V. Astrand; C. Doglioni; P.A. Ekman; V. Hedberg; H. Herde; B. Konya; E. Lytken; R. Poettgen; N.D. Simpson; O. Smirnova; E.J. Wallin; L. Zwalinski
• Department/s: Particle and nuclear physics; eSSENCE: The e-Science Collaboration; Department of Physics
• Publishing year: 2025
• Language: English
• Publication/Series: European Physical Journal C
• Volume: 85
• Issue: 3
• Links: http://dx.doi.org/10.1140/epjc/s10052-024-13701-w
• Document type: Journal article
• Publisher: Springer Nature
• Topic: Subatomic Physics
• Keywords: Data quality; Distributed computer systems; Information management; ATLAS experiment; Distributed computing systems; Distributed data managements; Distributed workloads; Management database; Physics analysis; Software infrastructure; Software workflow; Software-tools; Workload management; Quality control
• Status: Published
• ISBN/ISSN/Other: ISSN: 1434-6044