Precision <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si4.gif" overflow="scroll"><mml:mmultiscripts><mml:mi mathvariant="normal">Ga</mml:mi><mml:mprescripts/><mml:none/><mml:mn>71</mml:mn></mml:mmultiscripts></mml:math>–<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si3.gif" overflow="scroll"><mml:mmultiscripts><mml:mi mathvariant="normal">Ge</mml:mi><mml:mprescripts/><mml:none/><mml:mn>71</mml:mn></mml:mmultiscripts></mml:math> mass-difference measurement

Alanssari, M.; Frekers, D.; Eronen, T.; Cañete, L.; Hakala, J.; Holl, M.; Jokinen, A.; Kankainen, A.; Koponen, J.; Moore, I. D.; Nesterenko, D. A.; Pohjalainen, I.; Reinikainen, Juuso; Rinta‐Antila, S.; Voss, A.

doi:10.1016/j.ijms.2016.05.019

Cited by 12 publications

(1 citation statement)

References 30 publications

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“…Kostensalo et al [21] used a nuclear shell model calculation to avoid the (p,n) measurement drawback. The paper of Semenov et al [18] reproduces Bahcall's approach but uses modern values for the transition strengths [34]. The Semenov et al and Kostensalo et al results differ by about 4%, which is about 2-3 times larger than the uncertainty estimated for each.…”

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confidence: 96%

Results from the Baksan Experiment on Sterile Transitions (BEST)

Barinov,

Cleveland,

Danshin

et al. 2021

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The Baksan Experiment on Sterile Transitions (BEST) was designed to investigate the deficit of electron neutrinos, νe, observed in previous gallium-based radiochemical measurements with highintensity neutrino sources, commonly referred to as the gallium anomaly, which could be interpreted as evidence for oscillations between νe and sterile neutrino (νs) states. A 3.414-MCi 51 Cr νe source was placed at the center of two nested Ga volumes and measurements were made of the production of 71 Ge through the charged current reaction, 71 Ga(νe,e − ) 71 Ge, at two average distances. The measured production rates for the inner and the outer targets respectively are (54.9 +2.5 −2.4 (stat) ± 1.4(syst)) and (55.6 +2.7 −2.6 (stat) ± 1.4(syst)) atoms of 71 Ge/d. The ratio (R) of the measured rate of 71 Ge production at each distance to the expected rate from the known cross section and experimental efficiencies are Rin = 0.791 ± 0.05 and Rout = 0.766 ± 0.05. The ratio of the outer to the inner result is 0.97±0.07, which is consistent with unity within uncertainty. The rates at each distance were found to be similar, but 20-24% lower than expected, thus reaffirming the anomaly. These results are consistent with νe → νs oscillations with a relatively large ∆m 2 (>1 eV 2 ) and mixing sin 2 2θ (≈0.4).

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confidence: 96%