Münster 2002 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 34: Instrumentation and Applications IV
HK 34.3: Talk
Wednesday, March 13, 2002, 15:00–15:15, F
The STAR Level-3 Trigger System* — •Clemens Adler1, Jens Berger1, Martin Demello2, Thomas Dietel1, Dominik Flierl1, Jeff Landgraf3, Söeren Lange1, Micheal LeVine3, Ante Ljubicic,Jr.3, John Nelson4, Dieter Röhrich5, Reinhard Stock1, Christof Struck1, and Pablo Yepes2 — 1Institut für Kernphysik, Universität Frankfurt, Frankfurt, Germany — 2Rice University, Houston, Texas, USA — 3Brookhaven National Laboratory, Upton, New York, USA — 4University of Birmingham, Birmingham, United Kingdom — 5University of Bergen, Bergen, Norway
The STAR experiment at RHIC is a large acceptantance detector for the measurement of a wide variety of observables. The STAR Level-3 trigger system is a high level trigger, based on the real-time reconstruction of the events. A simple analysis of physics observables based on the particle track information is performed and a trigger decision can be issued. Central Au+Au collisions can be processed at a rate of up to 50s−1. In 2001 the Level-3 system was used for the first time to enhance rare physics signals in central Au+Au collisions. In earlier runs the Level-3 system has been useful for quality assurance and background rejection.
(*) gefördert von BMBF und GSI