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Development of technologies for a future neutrino mass experiment at KATRIN

Rodenbeck, Caroline; Schlösser, Magnus ORCID iD icon 1
1 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

The Karlsruhe Tritium Neutrino (KATRIN) experiment determines the neutrino mass by electron spectroscopy of the tritium beta-decay spectrum. After a total measurement time of 1000 days in 2025, a final sensitivity better than 0.3 eV/c2 (90% C.L.) is anticipated.

Ultimately, determining the neutrino mass may require constructing experiments with sensitivities as low as the lower boundaries obtained by neutrino oscillation experiments (40 meV/c2 in case of inverted ordering, or 8 meV/c2 for normal ordering). To reach those sensitivities, we are developing new technologies such as a differential detector with sub-eV resolution, and an atomic tritium source.

For the differential detector, we are currently testing quantum sensors, more precisely, µm-sized cryogenic (10 mK) calorimeters. We aim to build a demonstrator where we couple a large quantum-sensor array of up to 106 channels to the existing KATRIN beamline.

Additionally, we are building a first-of-its-kind setup for creating tritium atoms. We plan to make it part of another demonstrator – after solving key challenges for future atomic sources (mK-cooling, storing of atoms) in cooperation with the global community (e.g. ... mehr


Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Vortrag
Publikationsdatum 05.03.2024
Sprache Englisch
Identifikator KITopen-ID: 1000168732
HGF-Programm 51.13.02 (POF IV, LK 01) KATRIN
Veranstaltung DPG Frühjahrstagung: Fachverband Teilchenphysik (2024), Karlsruhe, Deutschland, 04.03.2024 – 08.03.2024
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