High-resolution spectroscopy of gaseous 83mKr conversion electrons with the 
KATRIN experiment

KATRIN collaboration,

doi:10.1088/1361-6471/ab8480

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High-resolution spectroscopy of gaseous 83mKr conversion electrons with the KATRIN experiment

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

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Citation

KATRIN collaboration (2020). High-resolution spectroscopy of gaseous 83mKr conversion electrons with the KATRIN experiment. Journal of Physics G: Nuclear and Particle Physics, 47, 065002. doi:10.1088/1361-6471/ab8480.

Cite as: https://hdl.handle.net/21.11116/0000-0008-1C47-A

Abstract

In this work, we present the first spectroscopic measurements of conversion electrons originating from the decay ofmetastable gaseous 83mKr with the Karlsruhe Tritium Neutrino (KATRIN) experiment. The obtained results represent one of the major commissioning milestones for the subsequent direct neutrino mass measurement with KATRIN. The successful campaign demonstrates the functionalities of the KATRIN beamline. Precisemeasurement of the narrow K-32, L3-32, and N2,3-32 conversion electron lines allowed to verify the eV-scale energy resolution of the KATRIN main spectrometer necessary for competitive measurement of the absolute neutrino mass scale.