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

TL;DR
The paper describes the development and implementation of a new trigger logic and hardware upgrade for the ATLAS Level-1 endcap muon trigger to handle increased luminosity in Run 3, maintaining physics acceptance.
Contribution
It introduces a novel trigger logic and a new trigger board (NSL) that integrate multiple detector signals and reduce trigger rates effectively for Run 3.
Findings
Trigger rate reduced below required level
New trigger logic successfully implemented on FPGA
Enhanced sensitivity to new physics with increased luminosity
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsParticle Detector Development and Performance · Particle physics theoretical and experimental studies · Advanced Data Storage Technologies
