Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 32: Neutrinophysik X
T 32.3: Vortrag
Dienstag, 20. März 2018, 17:05–17:20, Z6 - HS 0.002
Topological Track Reconstruction in Liquid Scintillator Neutrino Detectors for MeV Events — •Henning Rebber1, Björn Wonsak1, Caren Hagner1, Sebastian Lorenz2, and David Meyhöfer1 — 1Universität Hamburg, Institut für Experimentalphysik — 2Johannes Gutenberg-Universität Mainz, Institut für Physik
Neutrino detectors like the JUNO experiment in China demand for an unprecedented energy resolution while pushing the fiducial mass of liquid scintillator to ever higher dimensions. This complicates the tasks of event reconstruction and background reduction. For widespread events, like e.g. high energy (∼GeV) muons, current developments in the topological track reconstruction provide a 3D light emission density distribution based on isotropically emitted, unscattered scintillation photons. The method gives access to a particle’s differential energy loss dE/dx and can help in the essential task of background rejection.
But also for low energy events in the signal range (∼MeV) – although comparatively point-like – the topological features hold valuable information which can be used e.g. for particle discrimination. The current status of these low energy studies is presented. This work is supported by the DFG.