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T: Fachverband Teilchenphysik
T 20: DAQ, trigger and electronics I
T 20.5: Talk
Monday, March 15, 2021, 17:00–17:15, Tt
Towards a Level 1 Single Track Z Trigger in the Belle II Experiment — •Felix Meggendorfer1, 3, Steffen Baehr2, Christian Kiesling1, 4, Sebastian Skambraks1, 4, and Kai Lukas Unger2 for the Belle II collaboration — 1Max-Planck-Institut für Physik — 2Karlsruher Institut für Technologie — 3Technische Universität München — 4Ludwig-Maximilians-Universität München
The Neurotrigger is a Level 1 track trigger within the drift chamber in the Belle II Experiment, which uses a neural network for the z vertex estimation. Since it ran stable in the last run period of 2020, we managed to improve the delta z resolution by using real data for the network training. We now aim for an unprescaled single track trigger operation from 2021 on. This will lead to a much better sensitivity for low multiplicity events, which is important for the discovery of new physics, for example in the sectors of tau lepton flavor violation or dark matter searches.