Architecture of a level 1 track trigger for the CMS experiment

作者：Hazen E; Heintz U^*; Johnson M; Lipton R; Narain M; Wu S X

来源：Journal of Instrumentation, 2010, 5: C08004.

DOI：10.1088/1748-0221/5/08/C08004

• Trigger concepts and systems (hardware and software)
• Particle tracking detectors (Solid-state detectors)
• Si microstrip and pad detectors

The luminosity goal for the Super-LHC is 10(35)/cm(2)/s. At this luminosity the number of proton-proton interactions in each beam crossing will be in the hundreds. This will stress many components of the CMS detector. One system that has to be upgraded is the trigger system. To keep the rate at which the level 1 trigger fires manageable, information from the tracker has to be integrated into the level 1 trigger. Current design proposals foresee tracking detectors that perform on-detector filtering to reject hits from low-momentum particles. In order to build a trigger system, the filtered hit data from different layers and sectors of the tracker will have to be transmitted off the detector and brought together in a logic processor that generates trigger tracks within the time window allowed by the level 1 trigger latency. This paper describes a possible architecture for the off-detector logic that accomplishes this goal.

• 出版日期2010-8