Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 39: Neutrino Physics IV
T 39.1: Vortrag
Dienstag, 1. April 2025, 16:15–16:30, VG 3.104
Insight into the Analysis of the KATRIN Neutrino Mass Data — Christoph Köhler1,2, Susanne Mertens1,2, •Jan Plößner1,2, Richard Salomon3, Alessandro Schwemmer1,2, Jaroslav Štorek4, Xaver Stribl1,2, and Christoph Wiesinger1,2 for the KATRIN collaboration — 1Max Planck Institute for Nuclear Physics — 2Technical University of Munich — 3University of Münster — 4Karlsruhe Institute of Technology
The KArlsruhe TRItium Neutrino (KATRIN) experiment probes the effective electron anti-neutrino mass by a precision measurement of the tritium beta-decay spectrum near the endpoint. A world-leading upper limit of 0.45 eV c−2 (90 % C.L.) has been set, including the data of the first five measurement campaigns, corresponding to approximately 15 % of the final statistics. Since then, the collected data has increased by a factor of five.
In this presentation, I will provide an update on the current status of the KATRIN neutrino mass analysis beyond the fifth measurement campaign and discuss the neural network approach utilized for this analysis.
This work is supported by the Helmholtz Association and by the Ministry for Education and Research BMBF (grant numbers 05A23PMA, 05A23PX2, 05A23VK2, and 05A23WO6).
Keywords: Neutrino Mass; Data Analysis; Neural Network