beta decay

Double beta decay in nuclei plays an important role in testing lepton number conservation and neutrino mass.

原子核双β衰变在检验轻子数守恒律和中微子质量等问题上都起了重要的作用。

Radioactive series: Any of four sets of unstable heavy atomic nuclei that undergo a series of alpha decay and Beta decay until a stable nucleus is achieved.

放射性系：四组不稳定的重原子核，通过一系列α衰变和β衰变直至达到稳定的核为止。

The radioactive transformation giving rise to these electrons was known as beta decay.

产生这种电子的放射性变化,称为β衰变.

A method is described for measuring the beta spectrum from tritium decay in order to determine the electron-antineutrino rest mass.

本文提出一种从氚衰变β谱确定电子反中微子静止质量的新型结构β谱仪。

Let us very briefly rehearse one or two facts about nuclear beta decay.

让我们非常简要地复述一下有关该β衰变的一两件事实.