STAR level-3 trigger system

J. S. Lange, C. Adler, J. Berger, M. Demello, D. Flierl, J. Landgraf, M. J. Levine, A. Ljubicic, J. Nelson, D. Roehrich, J. J. Schambach, D. Schmischke, M. W. Schulz, R. Stock, C. Struck, P. Yepes

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The STAR level-3 trigger system will perform online track finding for high multiplicity Au+Au collider events (Ntrack≥8000, Npoint≤45 per track), utilizing high-performance ALPHA 21264 CPUs and high-bandwidth MYRINET network interfaces (expected data transfer rate≈52 Mbytes/s). A global level-3 CPU will perform tasks like online invariant mass reconstruction and issue an accept/reject decision with a design input rate R = 100 Hz (R≤25 Hz for a prototype system in 12/99).

Original languageEnglish
Pages (from-to)397-404
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume453
Issue number1-2
DOIs
StatePublished - Oct 11 2000
Externally publishedYes

Funding

This work has been supported by the Bundesministerium für Bildung und Forschung, Germany (contract ♯06OF 840 I). We would like to thank MYRICOM, Inc. for excellent technical and documentational support. J.S. Lange would like to thank the Alexander-von-Humboldt organization for support of INSTR99 conference participation.

FundersFunder number
Bundesministerium für Bildung und Forschung♯06OF 840 I

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