CERN Accelerating science

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.) ; Barillari, T. (Munich, Max Planck Inst.) ; Bellachia, F. (Annecy, LAPP) ; Benoit, M. (Brookhaven Natl. Lab.) ; Bernon, F. (Marseille, CPPM) ; Berthold, A. (Dresden, Tech. U.) ; Bervas, H. (IRFU, Saclay) ; Besin, D. (IRFU, Saclay) ; Betti, A. (Southern Methodist U.) ; Bianga, Y. (Dresden, Tech. U.) ; Biaut, M. (Marseille, CPPM) ; Boline, D. (Stony Brook U.) ; Boudreau, J. (Pittsburgh U.) ; Bouedo, T. (Annecy, LAPP) ; Braam, N. (Victoria U.) ; Cano Bret, M. (Iowa U.) ; Brooijmans, G. (Nevis Labs, Columbia U.) ; Cai, H. (Pittsburgh U.) ; Camincher, C. (CERN ; Victoria U.) ; Camplani, A. (INFN, Milan ; Bohr Inst.) ; Cap, S. (Annecy, LAPP) ; Carbone, A. (INFN, Milan) ; Carter, J.W.S. (Toronto U.) ; Chekulaev, S.V. (TRIUMF ; LPI, Moscow (main)) ; Chen, H. (Brookhaven Natl. Lab.) ; Chen, K. (Brookhaven Natl. Lab.) ; Chevillot, N. (Annecy, LAPP) ; Citterio, M. (INFN, Milan) ; Cleland, B. (Pittsburgh U.) ; Constable, M. (TRIUMF) ; de Jong, S. (Victoria U.) ; Deiana, A.M. (Southern Methodist U.) ; Delmastro, M. (Annecy, LAPP) ; Deng, B. (Southern Methodist U.) ; Deschamps, H. (IRFU, Saclay) ; Diaconu, C. (Marseille, CPPM) ; Dik, A. (LPI, Moscow (main)) ; Dinkespiler, B. (Marseille, CPPM) ; Dayot, N. Dumont (Annecy, LAPP) ; Emerman, A. (Nevis Labs, Columbia U.) ; Enari, Y. (Tokyo U.) ; Falke, P.J. (Annecy, LAPP ; Bonn U.) ; Farrell, J. (Brookhaven Natl. Lab.) ; Fielitz, W. (Brookhaven Natl. Lab.) ; Fortin, E. (Marseille, CPPM) ; Fragnaud, J. (Annecy, LAPP) ; Franchino, S. (Kirchhoff Inst. Phys.) ; Gantel, L. (Annecy, LAPP) ; Gigliotti, K. (Arizona U.) ; Gong, D. (Southern Methodist U.) ; Grabas, A. (IRFU, Saclay) ; Grohs, P. (Dresden, Tech. U.) ; Guettouche, N. (Marseille, CPPM) ; Guillemin, T. (Annecy, LAPP) ; Guo, D. (Southern Methodist U.) ; Guo, J. (KLPAC, Shanghai) ; Hasley, L. (Southern Methodist U.) ; Hayes, C. (Stony Brook U. ; U. Michigan, Ann Arbor) ; Hentges, R. (Dresden, Tech. U.) ; Hervas, L. (CERN) ; Hils, M. (Dresden, Tech. U.) ; Hobbs, J. (Stony Brook U.) ; Hoffman, A. (Brookhaven Natl. Lab.) ; Hoffmann, D. (Marseille, CPPM) ; Horn, P. (Dresden, Tech. U.) ; Hryn'ova, T. (Annecy, LAPP) ; Iconomidou-Fayard, L. (IJCLab, Orsay) ; Iguchi, R. (Tokyo U.) ; James, T. (Southern Methodist U.) ; Ye, J. (Southern Methodist U.) ; Johns, K. (Arizona U.) ; Junkermann, T. (Kirchhoff Inst. Phys.) ; Kahra, C. (Mainz U., Inst. Phys.) ; Kay, E.F. (Victoria U.) ; Keeler, R. (Victoria U.) ; Ketabchi Haghighat, S. (Toronto U.) ; Kinget, P. (Columbia U.) ; Knoops, E. (Marseille, CPPM) ; Kolbasin, A. (LPI, Moscow (main)) ; Krieger, P. (Toronto U.) ; Kuppambatti, J. (Columbia U.) ; Kurchaninov, L.L. (TRIUMF) ; Ladygin, E. (Dubna, JINR) ; Lafrasse, S. (Annecy, LAPP) ; Landon, M.P.J. (Queen Mary, U. of London) ; Lanni, F. (Brookhaven Natl. Lab.) ; Latorre, S. (INFN, Milan) ; Laugier, D. (Marseille, CPPM) ; Lazzaroni, M. (INFN, Milan ; Milan U.) ; Le, X. (Southern Methodist U.) ; Bourlout, P. Le (IRFU, Saclay) ; Lee, C.A. (Brookhaven Natl. Lab.) ; Lefebvre, M. (Victoria U.) ; Leite, M.A.L. (Sao Paulo U.) ; Leroy, C. (Montreal U.) ; Li, X. (Southern Methodist U.) ; Li, Z. (Marseille, CPPM ; Shandong U.) ; Liang, F. (Southern Methodist U.) ; Liu, H. (Brookhaven Natl. Lab.) ; Liu, C. (Southern Methodist U.) ; Liu, T. (Southern Methodist U.) ; Ma, H. (Brookhaven Natl. Lab.) ; Ma, L.L. (Shandong U.) ; Mahon, D.J. (Nevis Labs, Columbia U.) ; Mallik, U. (Iowa U.) ; Mansoulie, B. (IRFU, Saclay) ; Maslennikov, A.L. (Novosibirsk, IYF ; Novosibirsk State U.) ; Matsuzawa, N. (Tokyo U.) ; McPherson, R.A. (Victoria U.) ; Menke, S. (Munich, Max Planck Inst.) ; Milic, A. (Toronto U. ; CERN) ; Minami, Y. (Tokyo U.) ; Molina, E. (IRFU, Saclay) ; Monnier, E. (Marseille, CPPM) ; Morange, N. (IJCLab, Orsay) ; Morvaj, L. (CERN ; Stony Brook U.) ; Mueller, J. (Pittsburgh U.) ; Mwewa, C. (Brookhaven Natl. Lab.) ; Narayan, R. (Southern Methodist U.) ; Nikiforou, N. (Comenius U. ; CERN) ; Ochoa, I. (Nevis Labs, Columbia U. ; LIP, Lisbon) ; Oishi, R. (Tokyo U.) ; Oliveira Damazio, D. (Brookhaven Natl. Lab.) ; Owen, R.E. (Rutherford) ; Pancake, C. (Stony Brook U.) ; Panchal, D.K. (U. Texas, Austin (main)) ; Perrot, G. (Annecy, LAPP) ; Pleier, M.-A. (Brookhaven Natl. Lab.) ; Poffenberger, P. (Victoria U.) ; Porter, R. (Victoria U.) ; Quan, S. (Southern Methodist U.) ; Rabel, J. (Pittsburgh U.) ; Roy, A. (U. Texas, Austin (main)) ; Rutherfoord, J.P. (Arizona U.) ; Sabatini, F. (INFN, Milan) ; Salomon, F. (Marseille, CPPM) ; Sauvan, E. (Annecy, LAPP) ; Schaffer, A.C. (IJCLab, Orsay) ; Schamberger, R.D. (Stony Brook U.) ; Schwemling, Ph. (IRFU, Saclay) ; Secord, C. (Victoria U.) ; Selem, L. (Annecy, LAPP) ; Sexton, K. (Brookhaven Natl. Lab.) ; Shafto, E. (Stony Brook U.) ; Silva Oliveira, M.V. (CERN) ; Simion, S. (IJCLab, Orsay) ; Singh, S. (Toronto U.) ; Sippach, W. (Nevis Labs, Columbia U.) ; Snesarev, A.A. (LPI, Moscow (main)) ; Snyder, S. (Brookhaven Natl. Lab.) ; Spalla, M. (Munich, Max Planck Inst.) ; Stärz, S. (CERN ; McGill U.) ; Straessner, A. (Dresden, Tech. U.) ; Strizenec, P. (Bratislava, Inst. Phys.) ; Stroynowski, R. (Southern Methodist U.) ; Sulin, V.V. (LPI, Moscow (main)) ; Tanaka, J. (Tokyo U.) ; Tang, S. (Brookhaven Natl. Lab.) ; Tapprogge, S. (Mainz U., Inst. Phys.) ; Tartarelli, G.F. (INFN, Milan) ; Tateno, G. (Tokyo U.) ; Terashi, K. (Tokyo U.) ; Tisserant, S. (Marseille, CPPM) ; Tompkins, D. (Arizona U.) ; Unal, G. (CERN) ; Unal, M. (U. Texas, Austin (main)) ; Uno, K. (Tokyo U.) ; Vallier, A. (CERN ; Marseille, CPPM) ; de Souza, S. Vieira (Mainz U., Inst. Phys.) ; Walker, R. (Arizona U.) ; Wang, Q. (Nevis Labs, Columbia U.) ; Wang, C. (Marseille, CPPM ; Shanghai Jiao Tong U.) ; Wang, R. (Mainz U., Inst. Phys.) ; Wessels, M. (Kirchhoff Inst. Phys.) ; Wingerter-Seez, I. (Annecy, LAPP) ; Wolniewicz, K. (Brookhaven Natl. Lab.) ; Wu, W. (Brookhaven Natl. Lab. ; Shanghai Jiao Tong U.) ; Xiandong, Z. (Southern Methodist U.) ; Xu, R. (Arizona U.) ; Xu, H. (Brookhaven Natl. Lab.) ; Yamamoto, S. (Tokyo U.) ; Yang, Y. (Tokyo U.) ; Zaghia, H. (IRFU, Saclay) ; Zang, J. (Tokyo U.) ; Zhang, T. (Tokyo U.) ; Zhu, H.L. (Brookhaven Natl. Lab. ; USTC, Hefei) ; Zhulanov, V. (Novosibirsk, IYF ; Novosibirsk State U.) ; Zonca, E. (IRFU, Saclay) ; Zuk, G. (Pittsburgh U.)
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: © 2022-2024 CERN (License: CC-BY-4.0)

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