The DØ central track trigger

Jamieson Olsen, John Anderson, Robert Angstadt, Levan Babukhadia, Mrinmoy Bhattacharjee, Gerald Blazey, Fred Borcherding, Brian Connolly, Michael Cooke, Satish Desai, David Evans, Paul Grannis, Stefan Grünendahl, Yuan Hu, Vivek Jain, Marvin Johnson, Stephan Linn, Juan Lizarazo, Yurii Maravin, Manuel MartinYildirim Mutaf, Carsten Nöding, Ricardo Ramirez-Gomez, Stefano Rapisarda, Kyle Stevenson, Makoto Tomoto, Brigitte Vachon, Thei Wijnen, Neal Wilcer, Graham Wilson, Qichun Xu, Kin Yip

Research output: Contribution to journalArticle

13 Scopus citations


An overview of the system architecture and algorithms used for the DØ 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 preshovver clusters that are sent to the Level 1 Muon 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.

Original languageEnglish (US)
Pages (from-to)345-350
Number of pages6
JournalIEEE Transactions on Nuclear Science
Issue number3 I
StatePublished - Jun 1 2004


  • Data acquisition
  • Field programmable gate arrays (FPGAs)
  • Parallel processing
  • Particle tracking
  • Scintillation detectors
  • Triggering

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    Olsen, J., Anderson, J., Angstadt, R., Babukhadia, L., Bhattacharjee, M., Blazey, G., Borcherding, F., Connolly, B., Cooke, M., Desai, S., Evans, D., Grannis, P., Grünendahl, S., Hu, Y., Jain, V., Johnson, M., Linn, S., Lizarazo, J., Maravin, Y., ... Yip, K. (2004). The DØ central track trigger. IEEE Transactions on Nuclear Science, 51(3 I), 345-350.