Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 102: Neutrino Physics IX
T 102.4: Vortrag
Freitag, 4. April 2025, 09:45–10:00, VG 3.104
KATRIN++ - Development of New Detector Technologies for a Future Neutrino Mass Experiment with Tritium — •Neven Kovac1, Fabienne Adam1, Beate Bornschein1, Woosik Gil1, Ferenc Glück1, Svenja Heyns1, Sebastian Kempf2,3, Andreas Kopmann3, Michael Müller2, Rudolf Sack1, Magnus Schlösser1, Frank Simon3, Markus Steidl1, and Kathrin Valerius1 — 1Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT) — 2Institute of Micro- and Nanoelectronic Systems (IMS), Karlsruhe Institute of Technology (KIT) — 3Institute for Data Processing and Electronics (IPE), Karlsruhe Institute of Technology (KIT)
Currently, the tightest constraints on the absolute scale of neutrino mass from a direct, model-independent approach, are obtained by the KATRIN experiment, giving an upper limit on the mass of the electron anti-neutrino of 0.45 eV (https://doi.org/10.48550/arXiv.2406.13516), with final projected sensitivity below 0.3 eV. Going beyond this limit, and probing the inverted mass ordering (and beyond), will be the task for future neutrino mass experiments. In this regard, development of new detector technologies is of utmost importance, with quantum sensor arrays currently being the front runners due to their exceptional performance and excellent energy resolution. We report on our R&D efforts aiming to demonstrate the feasibility of developing and operating large quantum sensor arrays for detection of external electrons in a KATRIN-like setup, as a basis for the next generation neutrino mass experiments with tritium.
Keywords: Metallic Micocalorimeters; Neutrino mass; Krypton-83m; Quantum Sensors