The DO Central Track Trigger
Wilson, Graham Wallace
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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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.
©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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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