Bonn 2020 – wissenschaftliches Programm

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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 Meggendorfer^1,2, Sebastian Skambraks^1,3, Christian Kiesling^1,3, 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.