Possible implications of a reactor-status effect on the β+ decay rate of 22Na

Recently, a reproducible reactor-status effect was measured for the decay of 22 Na. However, the effect was not observable for the β - decay of 60 Co. Since no systematic cause for this effect was found, the possibility exists that it is caused by an interaction of reactor antineutrinos with the sou...

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Bibliographic Details
Published in:International Journal of Modern Physics: Conference Series 2018, Vol.48, p.1860106
Main Authors: de Meijer, Robert J., Limburg, Han, Dieleman, Pieter
Format: Article
Language:English
Subjects:
Antineutrinos
Decay rate
Neutrinos
Nuclear engineering
Nuclei (nuclear physics)
Sodium 22
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Summary:Recently, a reproducible reactor-status effect was measured for the decay of 22 Na. However, the effect was not observable for the β - decay of 60 Co. Since no systematic cause for this effect was found, the possibility exists that it is caused by an interaction of reactor antineutrinos with the source nucleus. The observed effect is 18 orders of magnitude larger than for the antineutrino capture of a free proton. A possible explanation is a final-state interaction between the incoming antineutrino and a neutrino in the source nucleus. The effect has still to be confirmed by an independent measurement. In this paper, the consequences for applications in monitoring nuclear facilities are discussed, as well as the consequences for fundamental physics and the opportunities for resolving some outstanding questions about neutrino properties.
ISSN:2010-1945
2010-1945
DOI:10.1142/S2010194518601060