The ATLAS trigger system for LHC Run 3 and trigger performance in 2022

Journal article

The ATLAS trigger system is a crucial component of the ATLAS experiment at the LHC. It is responsible for selecting events in line with the ATLAS physics programme. This paper presents an overview of the changes to the trigger and data acquisition system during the second long shutdown of the LHC, and shows the performance of the trigger system and its components in the proton-proton collisions during the 2022 commissioning period as well as its expected performance in proton-proton and heavy-ion collisions for the remainder of the third LHC data-taking period (2022–2025).

Authors: Aad, G; Aakvaag, E; Abbott, B; Abeling, K; Abicht, N

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: IOP Publishing
• Journal: Journal of Instrumentation
• Volume: 19
• Issue: 06
• Article number: P06029
• Publication date: 2024-06-25
• Acceptance date: 2024-05-28
• DOI: 10.1088/1748-0221/19/06/p06029
• EISSN: 1748-0221
• Language: English
• Keywords: Trigger concepts and systems (hardware and software); Online farms and online filtering; Trigger detectors; Trigger algorithms