2023
DOI: 10.1088/1742-6596/2438/1/012056
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Operation of the Neural z-Vertex Track Trigger for Belle II in 2021 - a Hardware Perspective

Abstract: To reduce the background the z-Vertex Track Trigger estimates the collision origin in the Belle II experiment using neural networks. The main part is a pre-trained multilayer perceptron. The task of this perceptron is to estimate the z-vertex of the collision to suppress background from outside the interaction point. For this, a low latency real-time FPGA implementation is needed. We present an overview of the architecture and the FPGA implementation of the neuronal network and the preprocessing. We also show … Show more

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