TITLE

The D0 Level 2 Trigger

AUTHOR(S)
Linnemann, James T.
PUB. DATE
September 2001
SOURCE
International Journal of Modern Physics A: Particles & Fields; G;9/10/2001 Supplement C, Vol. 16, p1166
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The DO Level 2 trigger (L2), a subsystem of the three-stage DO trigger, reduces event rates from 10 KHz to 1 KHz. The system is organized as a global processor and preprocessors for the calorimeter, muon, tracker, and preshower subsystems. Preprocessors digest information from a single detector system and produce a list of the objects. The global processor receives the object lists, matches across detectors, and applies selection criteria to the objects. The system can buffer 16 events. The L2 design has been guided by extensive queuing simulations. The system is presently being commissioned, with all components available as either pre-production or production boards.
ACCESSION #
7144341

 

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