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T: Fachverband Teilchenphysik
T 63: DAQ, trigger and electronics III
T 63.8: Vortrag
Mittwoch, 1. April 2020, 18:15–18:30, L-3.015
Efficiency Study of the Neural Network z-Vertex Trigger in the Belle II Experiment — •Felix Meggendorfer1,2, Sebastian Skambraks1,3, Christian Kiesling1,3, Steffen Baehr4, and Kai Unger4 for the Belle II collaboration — 1MPI für Physik, München — 2Technische Universität München — 3Ludwig-Maximilians-Universität München — 4Karlsruher Institut für Technologie
For the drift chamber of the Belle-II experiment located in Tsukuba, Japan, a first level hardware neural network trigger is used to identify tracks coming from outside of the interaction region. The neural trigger makes it possible to efficiently suppress the dominating portion of background tracks not coming from the interaction vertex and makes it possible to launch pure 2-track triggers without additional conditions. After a short introduction into the hardware design of the trigger system, the efficiency of the neural "z-vertex" trigger will be presented.