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Title: First operation of the KATRIN experiment with tritium

Journal Article · · European Physical Journal. C, Particles and Fields
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The determination of the neutrino mass is one of the major challenges in astroparticle physics today. Direct neutrino mass experiments, based solely on the kinematics of β -decay, provide a largely model-independent probe to the neutrino mass scale. The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to directly measure the effective electron antineutrino mass with a sensitivity of 0.2 eV (90 % CL). In this work we report on the first operation of KATRIN with tritium which took place in 2018. During this commissioning phase of the tritium circulation system, excellent agreement of the theoretical prediction with the recorded spectra was found and stable conditions over a time period of 13 days could be established. These results are an essential prerequisite for the subsequent neutrino mass measurements with KATRIN in 2019.

Sponsoring Organization:
USDOE Office of Science (SC); German Federal Ministry of Education and Research (BMBF); Helmholtz Alliance for Astroparticle Physics (HAP); Deutsche Forschungsgemeinschaft DFG; Ministry of Education, Youth and Sport in the Czech Republic
Grant/Contract Number:
AC02-05CH11231; FG02-94ER40818; FG02-97ER41020; FG02-97ER41033; FG02-97ER41041; SC0004036; SC0011091; SC0019304
OSTI ID:
1619360
Journal Information:
European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Journal Issue: 3 Vol. 80; ISSN 1434-6044
Publisher:
SpringerCopyright Statement
Country of Publication:
Germany
Language:
English

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