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Karlsruhe 2024 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 57: Neutrino physics 7

T 57.4: Vortrag

Mittwoch, 6. März 2024, 16:45–17:00, Geb. 30.21: Gerthsen-HS

Simulation and event reconstruction in NuDoubt++Manuel Böhles1, Sebastian Böser1, Magdalena Eisenhuth1, Chloé Girard-Carillo1, Bastian Kessler1, •Kyra Mossel1, Stefan Schoppmann2, Alfons Weber1, and Michael Wurm1 for the NuDoubt collaboration — 1Johannes Gutenberg-Universität Mainz, Institut für Physik, 55128 Mainz, Germany — 2Johannes Gutenberg-Universität Mainz, Detektorlabor, Exzellenzcluster PRISMA+, 55128 Mainz, Germany

NuDoubt++ searches for neutrinoless double beta plus decay with opaque scintillators. These scintillators have a very short scattering length but long absorption length and can be used to confine the light emitted after particle interactions in a small detector volume. A dense grid of wavelength shifting optical fibers deployed in the scintillating material and equipped with SiPMs then enables the detection of a significant fraction of the emitted photons. This approach allows efficient identification of particles as well as a precise reconstruction of the particles energy.

Photon propagation in such a detector can be approximated using diffusion models. However, this does not take into account shadowing effects of the deployed fibers, which can lead to significant differences in the expected photon counts. This effect can be corrected using MC simulations. In this presentation, the event reconstruction based on a diffusion model is shown.

Keywords: Neutrino; Double beta decay; Scintillation detectors

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