Some experiments seem to yield strong evidence of variability of beta-decay rates, but other experiments may show little or no such evidence. Some recent experiments help clarify the situation. In particular, a certain oscillation appears in neutrino measurements made at the Super-Kamiokande Neutrino Observatory and in radon beta-decay measurements made at the Geological Survey of Israel, with identical frequency (9.43 years⁻¹), amplitude and phase, strengthening the case for an influence of neutrinos on beta decays. A review of current experimental information leads us to suggest that 1) beta-decay rates do not change, but 2) the angular distribution of decay products may be anisotropic, and 3) the angular distribution of decay products may be influenced by the ambient neutrino flux. It appears that experiments at standards laboratories tend to be insensitive to direction, and this may be the reason that they tend not to exhibit evidence of variability.

一些实验似乎提供了β衰变速率可变性的有力证据，但其他实验可能很少或没有这种证据。最近的一些实验有助于弄清情况。尤其是，在超级神冈中子天文台进行的中微子测量和在以色列地质调查局进行的betaβ衰变测量中，以相同的频率（9.43年^-1），振幅和相位，从而加强了中微子对β衰变的影响。回顾当前的实验信息，我们认为1）β衰变速率没有变化，但是2）衰变产物的角度分布可能是各向异性的，并且3）衰变产物的角度分布可能受到环境中微子的影响通量。看来标准实验室的实验往往对方向不敏感，这可能是它们倾向于不表现出变异性的原因。