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Journal Article

KATRIN: status and prospects for the neutrino mass and beyond

MPS-Authors

The KATRIN collaboration, 
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

The KATRIN collaboration (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/21.11116/0000-000C-B4BB-6
Abstract
The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to measure a high-precision integral spectrum of the endpoint region of T2 β 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.