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DOE OSTI · 2283760

Particle flow reconstruction for the CMS Phase-II Level-1 Trigger

Herwig, C.
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Abstract

The upgrade of the CMS detector for the high-luminosity LHC will include trackfinding for the first time in the Level-1 trigger, enabling Particle Flow reconstruction of every event in addition to comprehensive pileup mitigation. The Correlator trigger will reconstruct isolated leptons and photons, hadronic jets, and energy sums, assisted in many cases by machine learning to benefit from the complete particle-level event record. Here, we present the logic of these algorithms, possible implementations using large FPGAs and their demonstration in prototype hardware, in addition to the expected physics performance.

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGYdata processing methodstrigger algorithmstrigger concepts and systems (hardware and software)

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Herwig, C.. 2023-01-17. Particle flow reconstruction for the CMS Phase-II Level-1 Trigger. https://doi.org/10.1088/1748-0221%2F18%2F01%2Fc01037

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