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Journal Article

KATRIN: Status and Prospects for the Neutrino Mass and Beyond


Rodejohann,  W.
Werner Rodejohann - ERC Starting Grant, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Aker, M., Balzer, M., Batzler, D., Beglarian, A., Behrens, J., Berlev, A., et al. (2022). KATRIN: Status and Prospects for the Neutrino Mass and Beyond. Journal of Physics G: Nuclear and Particle Physics, 49: 100501. doi:10.1088/1361-6471/ac834e.

Cite as: https://hdl.handle.net/21.11116/0000-000B-316A-7
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.