| CMS Note | |
| Report number | CMS-CR-2022-197 |
| Title | Architecture and Prototype of the CMS Global Level-1 Trigger for Phase-2 |
| Author(s) | Bortolato, Gabriele (INFN, Padua) ; Deldicque, Christian (CERN) ; Gigi, Dominique (CERN) ; Huber, Benjamin (CERN) ; Leutgeb, Elias (CERN) ; Lobanov, Artur (Hamburg U.) ; Rabady, Dinyar Sebastian (CERN) ; Racz, Attila (CERN) ; Sakulin, Hannes (CERN) |
| Publication | 2023 |
| Collaboration | CMS Collaboration |
| Imprint | 17 Oct 2022 |
| Number of pages | 8 |
| Published in: | JINST 18 (2023) C01034 |
| Presented at | Topical Workshop on Electronics for Particle Physics 2022 (TWEPP 2022), Bergen, Norway, 19 - 23 Sep 2022, pp.C01034 |
| DOI | 10.1088/1748-0221/18/01/C01034 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN LHC ; CMS |
| Keywords | Trigger |
| Abstract | We present the architecture and current state of prototype firmware of the CMS Level-1 Global Trigger, the final stage of the new Level-1 trigger for Phase-2 of the operation of the LHC. Based on high-precision inputs from the muon, calorimeter, track and particle flow triggers, the Global Trigger evaluates O(1000) cut-based and neural-net-based algorithms in a system of up to thirteen Xilinx Ultrascale Plus based ATCA processing boards interconnected by 25 Gb/s optical links. In order to optimize the usage of resource, the main algorithms, including the DSP-based calculation of invariant masses, are implemented at 480 MHz. |
| Other source | Inspire |
Record created 2022-11-07, last modified 2023-06-13
