A1 Journal article (refereed)
The gallium anomaly revisited (2019)

Kostensalo, J., Suhonen, J., Giunti, C., & Srivastava, P. C. (2019). The gallium anomaly revisited. Physics Letters B, 795, 542-547. https://doi.org/10.1016/j.physletb.2019.06.057

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Publication details

All authors or editorsKostensalo, J.; Suhonen, J.; Giunti, C.; Srivastava, P. C.

Journal or seriesPhysics Letters B



Publication year2019


Pages range542-547


Publication countryNetherlands

Publication languageEnglish


Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/67709

Web address of parallel published publication (pre-print)https://arxiv.org/abs/1906.10980

Additional informationCorrigendum to “The gallium anomaly revisited” [Phys. Lett. B 795 (2019) 542–547] https://doi.org/10.1016/j.physletb.2023.138190


The gallium anomaly, i.e. the missing electron-neutrino flux from 37Ar and 51Cr electron-capture decays as measured by the GALLEX and SAGE solar-neutrino detectors, has been among us already for about two decades. We present here a new estimate of the significance of this anomaly based on cross-section calculations using nuclear shell-model wave functions obtained by exploiting recently developed two-nucleon interactions. The gallium anomaly of the GALLEX and SAGE experiments is found to be smaller than that obtained in previous evaluations, decreasing the significance from 3.0σ to 2.3σ. This result is compatible with the recent indication in favor of short-baseline disappearance due to small active-sterile neutrino mixing obtained from the combined analysis of the data of the NEOS and DANSS reactor experiments.

Keywordsnuclear physics

Free keywordsgallium anomaly; charged-current cross-sections; nuclear shell model; neutrino-nucleus interactions

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Ministry reportingYes

Reporting Year2019

JUFO rating2

Last updated on 2024-11-05 at 19:45