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Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 95: Neutrinos: Myon-Rekonstruktion

T 95.1: Group Report

Thursday, March 28, 2019, 16:00–16:20, H11

Overview and status of the Topological Track Reconstruction for large unsegmented liquid scintillator neutrino detectorsFelix Benckwitz1, Caren Hagner1, David Meyhöfer1, Henning Rebber1, •Malte Stender1, Björn Wonsak1, Sebastian Lorenz2, Johann Dittmer3, Mikko Meyer3, and Kai Zuber31Universität Hamburg, Institut für Experimentalphysik — 2Johannes Gutenberg-Universität Mainz, Institut für Physik — 3Technische Universität Dresden, Institut für Kern- und Teilchenphysik

In this contribution we present the Topological Track Reconstruction, which works with minimal hypothesis in contrast to other reconstruction methods in liquid scintillator detectors. The reconstruction yields a 3D density distribution of the emitted scintillation photons enabling the localisation of muon events. This also implies information of the dE/dx of the muons and is therefore able to pin down hadronic showers within the track. These showers produce serious background isotopes. This information enhances the rejection and the study of cosmogenic background events.
The discussed reconstruction provides sharp tracks for GeV events, but even low energy events of a few MeV - traditionally thought as point-like - reveal some topological information. This information can then be used for event discrimination. The possibility to apply the reconstruction to different detector geometries and configurations promises a large field of application. This talk will present the advances of the Topological Track Reconstruction and give an overview about its applications.

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