THE ZEUS 1ST LEVEL TRACKING TRIGGER

Conference item

The ZEUS experiment has a three-level trigger system to select electron-proton interaction events from a large anticipated background of proton beam-gas. The first level decision is formed using pipelined hardware processors clocked at the 96 ns beam crossing frequency. A vital component of this decision is discrimination against upstream events using tracking detector information. The processors use three-dimensional space points measured in the central tracking detector to find pointing tracks over most of the θ range, and include forward tracking detector information to improve the resolution and angular coverage in the proton forward direction. The processor design status and performance simulation results are presented. © 1992.

Authors: Heath, G; Foster, B; Short, T; Wilson, S; Lancaster, M

• Publication status: Published
• Journal: NUCLEAR INSTRUMENTS and METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
• Volume: 315
• Issue: 1-3
• Pages: 431-435
• Publication date: 1992-05-01
• Event title: 5TH PISA MEETING ON ADVANCED DETECTORS : FRONTIER DETECTORS FOR FRONTIER PHYSICS
• DOI: 10.1016/0168-9002(92)90741-L
• ISSN: 0168-9002
• Keywords: DETECTOR