The Phase-1 Upgrade of the ATLAS Level-1 Endcap Muon Trigger

2018/06/24 by S. Akatsuka, Akatsuka, Shunichi
Computer Science · Physics and Astronomy · #Advanced Data Storage Technologies #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Instrumentation and Detectors (physics.ins-det) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.1806.09234

openalex publication_date 2018/06/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

For Run 3 (from 2021), the LHC will undergo a significant increase in instantaneous luminosity to 1.5 times its current value which will lead to larger collected statistics and an enhanced sensitivity to new physics. The Phase-1 upgrade of the ATLAS Level-1 endcap muon trigger is essential to keep the physics acceptance at Run 3. A new trigger logic to take coincidence with detectors inside and outside the magnetic field is described and is shown to reduce the trigger rate to lower than the required level in Run 3. A new trigger board, NSL, to integrate all the information from various detectors, has been developed, and the implementation of the new logic on the FPGA has been successfully demonstrated.

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