In June 2022, the BEST experiment released two papers observing a 20-24% deficit in the production the isotope germanium expected from the reaction 71 Ga + ν ν e → → e − − + 71 Ge , confirming previous results from SAGE and GALLEX on the so called "gallium anomaly" pointing out that a sterile neutrino explanation can be consistent with the data. Further work have refined the precision for the cross section of the neutrino capture in 2023 as well as half-life of 71 G e in 2024 ruling them out as possible explanations for the anomaly.