Karlsruhe 2024 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 82: Neutrino physics 9
T 82.7: Vortrag
Donnerstag, 7. März 2024, 17:30–17:45, Geb. 20.30: 2.058
First glance at the latest science runs of the KATRIN neutrino mass experiment using the KaFit analysis package — •Richard Salomon1 and Jaroslav Storek2 for the KATRIN collaboration — 1Institute for Nuclear Physics, University of Münster — 2Institute for Astroparticle Physics, Karlsruhe Institute of Technology
Performing a precision measurement of the endpoint region of the tritium β-decay spectrum, the Karlsruhe Tritium Neutrino (KATRIN) experiment aims at measuring the neutrino mass with a sensitivity of better than 0.3 eV/c2 (90% C.L.). The current world-leading upper limit of mν≤ 0.8 eV/c2 (90% C.L.) was determined from combined analysis of the first two measurement campaigns and a publication including the three subsequent measurement campaigns is currently in preparation.
The focus of this presentation is on the most recent measurement phases, which feature a significant increase of statistics in the region of interest. Following KATRIN’s model blinding strategy, studies on Asimov data using the KaFit/SSC model within the Kasper framework will be presented to provide an initial overview of this dataset.
This work is supported by the Deutsche Forschungsgemeinschaft (DFG) through the Research Training Group "GRK 2149: Strong and Weak Interactions - from Hadrons to Dark Matter", the Helmholtz Association and by the Ministry for Education and Research BMBF (grant numbers 05A23PMA, 05A23PX2, 05A23VK2, and 05A23WO6).
Keywords: KATRIN; neutrino; mass; tritium; beta decay