标题： 中微子质量的直接探测 显示英文标题

标题： Direct probes of neutrino mass

摘要： 中微子振荡的发现表明，中微子具有质量，这与最小标准模型的预测相矛盾。 振荡无法给出质量的具体数值，但可以设定三个已知本征质量平均值的下限为0.02 eV。 此外，它们使得可以从β衰变中电子味中微子的测量中确定或限制所有三个质量。 此类测量的目前上限是2 eV。 我们回顾实验室工作在缩小2 eV和0.02 eV之间剩余窗口以及测量质量方面的现状。 显示英文摘要

摘要： The discovery of neutrino oscillations has shown that neutrinos, in contradiction to a prediction of the minimal standard model, have mass. Oscillations do not yield a value for the mass, but do set a lower limit of 0.02 eV on the average of the 3 known eigenmasses. Moreover, they make it possible to determine or limit all 3 masses from measurements of electron-flavor neutrinos in beta decay. The present upper limit from such measurements is 2 eV. We review the status of laboratory work toward closing the remaining window between 2 and 0.02 eV, and measuring the mass.