Search for keV-scale sterile neutrinos with the first KATRIN data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00577587" target="_blank" >RIV/61389005:_____/23:00577587 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1140/epjc/s10052-023-11818-y" target="_blank" >https://doi.org/10.1140/epjc/s10052-023-11818-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-023-11818-y" target="_blank" >10.1140/epjc/s10052-023-11818-y</a>
Alternative languages
Result language
angličtina
Original language name
Search for keV-scale sterile neutrinos with the first KATRIN data
Original language description
In this work we present a keV-scale sterile-neutrino search with a low-tritium-activity data set of the KATRIN experiment, acquired in a commissioning run in 2018. KATRIN performs a spectroscopic measurement of the tritium beta-decay spectrum with the main goal of directly determining the effective electron anti-neutrino mass. During this commissioning phase a lower tritium activity facilitated the measurement of a wider part of the tritium spectrum and thus the search for sterile neutrinos with a mass of up to 1.6 keV. We do not find a signal and set an exclusion limit on the sterile-to-active mixing amplitude of sin(2) theta < 5 x 10(-4) (95% C.L.) at a mass of 0.3 keV. This result improves current laboratory-based bounds in the sterile-neutrino mass range between 0.1 and 1.0 keV.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/LTT19005" target="_blank" >LTT19005: Czech Participation at the International Experiment KATRIN</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
83
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
763
UT code for WoS article
001062421500009
EID of the result in the Scopus database
2-s2.0-85169159426