The ARGUS Vertex Trigger
N. Koch, M. Kolander, H. Kolanoski, T. Siegmund, J. Bergter, P., Eckstein, K.R. Schubert, R. Waldi, M. Imhof, D. Ressing, U. Weiss, S. Weseler
TL;DR
The paper presents a fast second-level trigger system for the ARGUS experiment that efficiently identifies interaction region tracks by comparing detector hits to pre-stored 3D masks, improving background rejection.
Contribution
It introduces a novel trigger processor that uses 3D masks stored in RAM to quickly recognize relevant tracks, enhancing real-time event filtering.
Findings
Successfully rejects wall-originating tracks
Operates at high speed suitable for real-time processing
Improves background suppression in the ARGUS experiment
Abstract
A fast second level trigger has been developed for the ARGUS experiment which recognizes tracks originating from the interaction region. The processor compares the hits in the ARGUS Micro Vertex Drift Chamber to 245760 masks stored in random access memories. The masks which are fully defined in three dimensions are able to reject tracks originating in the wall of the narrow beampipe of 10.5\,mm radius.
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