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  • KATRIN: Status and Prospects for the Neutrino Mass and Beyond
    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

    arXiv.org, 06/2023
    Paper, Journal Article

    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.

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