Design and implementation of the level 1 charged particle trigger for the BABAR detector

Citation
A. Berenyi et al., Design and implementation of the level 1 charged particle trigger for the BABAR detector, IEEE NUCL S, 46(6), 1999, pp. 2006-2010
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Nuclear Emgineering
Journal title
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
ISSN journal
0018-9499 → ACNP
Volume
46
Issue
6
Year of publication
1999
Part
2
Pages
2006 - 2010
Database
ISI
SICI code
0018-9499(199912)46:6<2006:DAIOTL>2.0.ZU;2-Z
Abstract
The environment of the high-luminosity PEP-II machine poses unique design c hallenges for the trigger system of the BABAR detector. These led to the ad option of a real-time parallel pipelined architecture for the trigger elect ronics which departs significantly from previous implementations at convent ional e(+)e(-) experiments. One challenge for the trigger designer lies in detecting low multiplicity physics events with high efficiency while keepin g the background rate within the data acquisition limits. To achieve this d ifficult task, creative and innovative high-speed trigger algorithms were d esigned, simulated and implemented in Field Programmable Gate Arrays, using advanced CAD/CAE tools. The simulation results indicate that these algorit hms will be able to perform all required tasks quickly and efficiently. Thi s paper describes the design of the Level 1 Drift Chamber Trigger System of the BABAR detector, including the trigger algorithms, design and test meth odology of the implementation, as well as test and simulation results.