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The CMS Data Acquisition System for the Phase-2 Upgrade

Authors :
André, Jean-Marc
Behrens, Ulf
Bocci, Andrea
Branson, James
Cittolin, Sergio
Da Silva Gomes, Diego
Darlea, Georgiana-Lavinia
Deldicque, Christian
Demiragli, Zeynep
Dobson, Marc
Doualot, Nicolas
Erhan, Samim
Fulcher, Jonathan Richard
Gigi, Dominique
Gladki, Maciej
Glege, Frank
Guillelmo Gomez-Ceballos
Hansen, Magnus
Hegeman, Jeroen
Holzner, André
Lettrich, Michael
Mecionis, Audrius
Meijers, Frans
Meschi, Emilio
Mommsen, Remigius K.
Morovic, Srecko
O, Vivian
Orn, Samuel Johan
Orsini, Luciano
Papakrivopoulos, Ioannis
Paus, Christoph
Petrucci, Andrea
Pieri, Marco
Rabady, Dinyar
Rácz, Attila
Rapsevicius, Valdas
Reis, Thomas
Sakulin, Hannes
Schwick, Christoph
Šimelevičius, Dainius
Stankevicius, Mantas
Troska, Jan
Velez, Cristina Vazquez
Wernet, Christian
Zejdl, Petr
Source :
INSPIRE-HEP

Abstract

During the third long shutdown of the CERN Large Hadron Collider, the CMS Detector will undergo a major upgrade to prepare for Phase-2 of the CMS physics program, starting around 2026. The upgraded CMS detector will be read out at an unprecedented data rate of up to 50 Tb/s with an event rate of 750 kHz, selected by the level-1 hardware trigger, and an average event size of 7.4 MB. Complete events will be analyzed by the High-Level Trigger (HLT) using software algorithms running on standard processing nodes, potentially augmented with hardware accelerators. Selected events will be stored permanently at a rate of up to 7.5 kHz for offline processing and analysis. This paper presents the baseline design of the DAQ and HLT systems for Phase-2, taking into account the projected evolution of high speed network fabrics for event building and distribution, and the anticipated performance of general purpose CPU. In addition, some opportunities offered by reading out and processing parts of the detector data at the full LHC bunch crossing rate (40 MHz) are discussed.

Details

Database :
OpenAIRE
Journal :
INSPIRE-HEP
Accession number :
edsair.doi.dedup.....55b6d7de3fe81bbbb6d6332c51b90657