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New Measurements of $^{71}$Ge Decay: Impact on the Gallium Anomaly
Published 11 Jul 2023 in nucl-ex, hep-ex, hep-ph, and nucl-th | (2307.05353v1)
Abstract: A dedicated high-statistics measurement of the ${71}$Ge half-life is found to be in accurate agreement with an accepted value of 11.43$\pm$0.03 d, eliminating a recently proposed route to bypass the "gallium anomaly" affecting several neutrino experiments. Our data also severely constrain the possibility of ${71}$Ge decay to low-energy excited levels of the ${71}$Ga daughter nucleus as a solution to this puzzle. Additional unpublished measurements of this decay are discussed. Following the incorporation of this new information, the gallium anomaly survives with high statistical significance.
- W. Hampel et al., Physics Letters B 420, 114 (1998).
- J. N. Abdurashitov et al., Phys. Rev. C 59, 2246 (1999).
- J. N. Abdurashitov et al., Phys. Rev. C 73, 045805 (2006).
- V. V. Barinov et al., Phys. Rev. Lett. 128, 232501 (2022a).
- V. V. Barinov et al., Phys. Rev. C 105, 065502 (2022b).
- C. Giunti and M. Laveder, Phys. Rev. C 83, 065504 (2011).
- S. R. Elliott, V. N. Gavrin, and W. C. Haxton, (2023a), arXiv:2306.03299 [nucl-ex] .
- V. Brdar, J. Gehrlein, and J. Kopp, JHEP 05, 143.
- Y. Farzan and T. Schwetz, (2023), arXiv:2306.09422 [hep-ph] .
- C. E. Aalseth et al., Phys. Rev. Lett. 106, 131301 (2011).
- J. I. Collar, A. R. L. Kavner, and C. M. Lewis, Phys. Rev. D 103, 122003 (2021).
- C. E. Aalseth et al., Phys. Rev. D 88, 012002 (2013).
- E. GarcÃa et al., Phys. Rev. D 51, 1458 (1995).
- D. Abriola et al., Astropart. Phys. 10, 133 (1999).
- X. Mougeot, personal communication.
- X. Mougeot, Phys. Rev. C 91, 055504 (2015).
- X. Mougeot, Appl. Radiat. Isot. 154, 108884 (2019).
- R. Agnese et al., Phys. Rev. Lett. 116, 071301 (2016).
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