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Article
Report number arXiv:2202.07384
Title The Phase-I Trigger Readout Electronics Upgrade of the ATLAS Liquid Argon Calorimeters
Author(s) Aad, G. (Marseille, CPPM) ; Akimov, A.V. (CERN ; LPI, Moscow (main)) ; Al Khoury, K. (Nevis Labs, Columbia U.) ; Aleksa, M. (CERN) ; Andeen, T. (Arizona U.) ; Anelli, C. (Victoria U.) ; Aranzabal, N. (CERN) ; Armijo, C. (Arizona U.) ; Bagulia, A. (Lebedev Inst.) ; Ban, J. (Nevis Labs, Columbia U.) Visualizza tutti i 198 autori
Publication 2022-05-16
Imprint 2022-02-15
Number of pages 56
Note 56 pages, 41 figures, 6 tables
In: JINST 17 (2022) P05024
DOI 10.1088/1748-0221/17/05/P05024 (publication)
Subject category hep-ex ; Particle Physics - Experiment ; physics.ins-det ; Detectors and Experimental Techniques
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Abstract The Phase-I trigger readout electronics upgrade of the ATLAS Liquid Argon calorimeters enhances the physics reach of the experiment during the upcoming operation at increasing Large Hadron Collider luminosities. The new system, installed during the second Large Hadron Collider Long Shutdown, increases the trigger readout granularity by up to a factor of ten as well as its precision and range. Consequently, the background rejection at trigger level is improved through enhanced filtering algorithms utilizing the additional information for topological discrimination of electromagnetic and hadronic shower shapes. This paper presents the final designs of the new electronic elements, their custom electronic devices, the procedures used to validate their proper functioning, and the performance achieved during the commissioning of this system.
Copyright/License preprint: (License: CC BY 4.0)
publication: © 2022-2025 CERN (License: CC-BY-4.0)



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 Record creato 2022-03-17, modificato l'ultima volta il 2024-10-15


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