Direct determination of the \(^{235}\)U to \(^{239}\)Pu inverse beta decay yield ratio in the power reactor neutrino experiments

The yields of the inverse beta decay events produced by antineutrinos from a certain nuclear reactor fuel component are used by many experiments to check various model predictions. Yet measurements of the absolute yields feature significant uncertainties coming, mainly, from the understanding of the...

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Bibliographic Details
Published in:arXiv.org 2024-10
Main Authors: Alekseev, I, Belov, V, Bystryakov, A, Danilov, M, Filosofov, D, Fomina, M, Gorovtsov, P, Ye Iusko, Kazartsev, S, Khvatov, V, Kiselev, S, Kobyakin, A, Krapiva, A, Kuznetsov, A, Machikhiliyan, I, Mashin, N, Medvedev, D, Nesterov, V, Ponomarev, D, Rozova, I, Rumyantseva, N, Rusinov, V, Samigullin, E, Ye Shevchik, Shirchenko, M, Yu Shitov, Skrobova, N, Svirida, D, Tarkovsky, E, Yakushev, E, Zhitnikov, I, Yakovleva, A, Zinatulina, D
Format: Article
Language:English
Subjects:
Antineutrinos
Beta decay
Fuels
Neutrinos
Nuclear fuels
Nuclear reactors
Power reactors
Uncertainty
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Summary:The yields of the inverse beta decay events produced by antineutrinos from a certain nuclear reactor fuel component are used by many experiments to check various model predictions. Yet measurements of the absolute yields feature significant uncertainties coming, mainly, from the understanding of the antineutrino detection efficiency. This work presents a simple novel approach to directly determine the \(^{235}\)U to \(^{239}\)Pu inverse beta decay yield ratio using the fuel evolution analysis. This ratio can be used for a sensitive test of reactor models, while the proposed method, results in smaller systematic uncertainties.
ISSN:2331-8422