The DO Central Track Trigger
Abstract
An overview of the system architecture and algorithms used for the DO Central Track Trigger (CTT) in the Run 2 of the Fermilab Tevatron Proton-Antiproton Collider is presented. This system uses information from the newly commissioned Central Fiber Tracker and Preshower Detectors to generate Level 1 trigger decisions. It also generates lists of seed tracks and preshower clusters that are sent to the Level 1 Moon Trigger, L2 Silicon Track Trigger, and Central and Forward Preshower Level 2 preprocessors. The system consists of modular boards which utilize field-programmable gate arrays (FPGAs) to implement trigger algorithms. The system delivers trigger decisions every 132 ns, based on input data flowing at a maximum sustained rate of 475 gigabits per second. The first results of trigger efficiency studies are presented.
Description
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Citation
Wilson, G; Olsen, J; Anderson, J; Angstadt, R; Babukhadia, L; Bhattacharjee, M; Blazey, G; Borcherding, F; Connolly, B; Cooke, M; Desai, S. The DO Central Track Trigger. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, June 2004, 51(3, pt. 1): 345-350.
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