The energy levels of some light nuclei

Abstract
The protons emitted by light nuclei when they are disintegrated by alpha particles have been shown by Bothe and Fränz and by a number of other workers to consist of groups, each group being nearly homogeneous in velocity. It is possible to deduce the energy levels of a number of light nuclei from a study of these groups. Consider the disintegration represented by the equation, A + He4 → B + H1.