KATRIN: Status and Prospects for the Neutrino Mass and Beyond

The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to measure a high-precision integral spectrum of the endpoint region of T2 beta decay, with the primary goal of probing the absolute mass scale of the neutrino. After a first tritium commissioning campaign in 2018, the experiment has bee...

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Published in:arXiv.org 2023-06
Main Authors: Balzer, M, Batzler, D, Biassoni, M, Block, F, Bormann, D, Bruch, C, Brunst, T, Caldwell, T S, Carminati, M, Carney, R M D, Chilingaryan, S, Choi, W, Cremonesi, O, Debowski, K, Descher, M, Doe, P J, Drexlin, G, Edzards, F, Engel, R, Fink, D, Fiorini, C, maggio, J A, stner, C, Fränkle, F M, Friedel, F, Fulst, A, Gavin, A S, Grande, A, Grössle, R, Gumbsheimer, R, Hannen, V, Hartmann, J, Hickford, S, Hiller, R, Hillesheimer, D, Höhn, T, Houdy, T, Huber, A, Jansen, A, Kleifges, M, Klein, M, Köhler, C, Kopmann, A, Kovalík, A, Krasch, B, Lechner, P, Lehnert, B, Lokhov, A, Machatschek, M, Malcherek, E, Manfrin, D, Mark, M, Marsteller, A, Martin, E L, Mertens, S, Nava, A, Neumann, H, Niemes, S, Oelpmann, P, Onillon, A, Parno, D S, Pavan, M, Poyato, J M L, Pozzi, S, Priester, F, Puritscher, M, Ráliš, J, Robertson, R G H, Rodenbeck, C, Röllig, M, Röttele, C, Sack, R, Salomon, R W J, Schimpf, L, Schlösser, K, Schlösser, M, Schlüter, L, Schneidewind, S, Schrank, M, Schütz, A K, Schwemmer, A, Sedlak, A, Sibille, V, Slezák, M, Spanier, F, Telle, H H, Thümmler, T, Titov, N, Tkachev, I, Trigilio, P, Urban, K, Vénos, D, Vizcaya Hernández, A P, Weinheimer, C, Weiss, E, Welte, S, Wiesinger, C, Wydra, J, Zadoroghny, S, Zeller, G
Format: Article
Language:English
Subjects:
Beta decay
Confidence intervals
Neutrinos
Sensitivity
Tritium
Online Access:Get full text
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Summary:The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to measure a high-precision integral spectrum of the endpoint region of T2 beta decay, with the primary goal of probing the absolute mass scale of the neutrino. After a first tritium commissioning campaign in 2018, the experiment has been regularly running since 2019, and in its first two measurement campaigns has already achieved a sub-eV sensitivity. After 1000 days of data-taking, KATRIN's design sensitivity is 0.2 eV at the 90% confidence level. In this white paper we describe the current status of KATRIN; explore prospects for measuring the neutrino mass and other physics observables, including sterile neutrinos and other beyond-Standard-Model hypotheses; and discuss research-and-development projects that may further improve the KATRIN sensitivity.
ISSN:2331-8422
DOI:10.48550/arxiv.2203.08059