PoS - Proceedings of Science
Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T12: Detector R&D and Data Handling
ATLAS LAr Calorimeter Commissioning for LHC Run-3
D.P. Mungo
Full text: Not available
Abstract
Liquid argon (LAr) sampling calorimeters are employed by ATLAS for all electromagnetic
calorimetry in the pseudo-rapidity region |𝜂| < 3.2, and for hadronic and forward calorimetry in the region from |𝜂| = 1.5 to |𝜂| < 4.9. After detector consolidation during a long shutdown,
Run-2 started in 2015 and about $150 fb^{−1}$ of data at a center-of-mass energy of 13 TeV were
recorded. Installation of the Phase-I detector upgrades began after the end of Run-2. New trigger
readout electronics of the ATLAS Liquid-Argon Calorimeter have been developed. Installation
began at the start of the LHC shut down in 2019 and is expected to be completed in 2021. A
commissioning campaign is underway in order to realise the capabilities of the new, higher granularity and higher precision level-1 trigger hardware in Run-3 data taking. This contribution will give an overview of the new trigger readout commissioning, as well as the preparations for Run-3
detector operation
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