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Article Dans Une Revue Physical Review Letters Année : 2023

On the origin of the reactor antineutrino anomalies in light of a new summation model with parameterized $\beta^{-}$ transitions

Résumé

We investigate the possible origins of the norm and shape reactor antineutrino anomalies in the framework of a summation model (SM) where $\beta^{-}$ transitions are simulated by a phenomenological Gamow-Teller $\beta$-decay strength model. The general trends of the discrepancies to the Huber-Mueller model on the antineutrino side can be reproduced both in norm and shape. From the exact electron-antineutrino correspondence of the SM model, we predict similar distortions in the electron spectra, suggesting that biases on the reference fission-electron spectra could be at the origin of the anomalies.

Dates et versions

hal-03739029 , version 1 (26-07-2022)

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Citer

A. Letourneau, V. Savu, D. Lhuillier, Th. Lasserre, Th. Materna, et al.. On the origin of the reactor antineutrino anomalies in light of a new summation model with parameterized $\beta^{-}$ transitions. Physical Review Letters, 2023, 130 (2), pp.021801. ⟨hal-03739029⟩
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