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Bonn 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Bonn musste abgesagt werden! Lesen Sie mehr ...

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T: Fachverband Teilchenphysik

T 56: Experimental methods III

T 56.6: Vortrag

Mittwoch, 1. April 2020, 17:45–18:00, H-ÜR 1

Pixel Detector Background Generation using Generative Adversarial Networks at Belle IIMatej Srebre, Thomas Kuhr, •Hosein Hashemi, and Martin Ritter for the Belle II collaboration — Ludwig-Maximilians-Universität München

The pixel detector (PXD) is an essential part of the Belle II detector recording particle positions. Data from the PXD and other detectors allow us to reconstruct particle tracks and decay vertices. The effect of background noise on track reconstruction for measured data is emulated for simulated data by a mixture of measured background noise and easily-simulated particle decays. This model requires a large set of statistically independent PXD background noise samples in order to avoid the systematic bias of reconstructed tracks. However, data from the fine-grained PXD requires a substantial amount of storage. As an efficient way of producing background noise, we explore the idea of an on-demand PXD background generator using Generative Adversarial Networks (GANs).

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