Summary
This technical paper presents the engineering design of data acquisition and online processing systems for the upgraded CMS detector at the High Luminosity LHC, anticipated to commence operation around 2025. The design addresses unprecedented data rates and event volumes through novel approaches to event building, network infrastructure, and real-time software processing, whilst considering emerging technologies for data reduction and the potential for processing detector readout at the machine clock rate.
UK applicability
Not applicable. This paper concerns particle physics infrastructure and does not address agricultural, nutritional, or food systems topics relevant to UK farming or food policy.
Key measures
Data acquisition rate (50 Tb/s), event rate (750 kHz), permanent storage rate (10 kHz), instantaneous luminosity (7.5×10³⁴ cm⁻² s⁻¹), pileup interactions (up to 200 per crossing), front-end clock rate (40 MHz)
Outcomes reported
The paper describes the baseline design of Data Acquisition (DAQ) and High-Level Trigger (HLT) systems for the CMS detector upgrade at the High Luminosity LHC, specifying technical requirements including data rates up to 50 Tb/s and event processing rates of 750 kHz with permanent storage at 10 kHz.
Topic tags
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