Analysis of Long-Range Alpha-Emission Data

Abstract

Alpha barrier penetrabilities for the long-range alpha particles of ${\mathrm{Po}}^{212}$ and ${\mathrm{Po}}^{214}$ are calculated by using the diffuse exponential nuclear potential derived from optical-model analysis of alpha-particle elastic-scattering data. The calculations are made on the same basis as reported by Rasmussen in two previous publications. Partial half-lives for alpha and gamma emission are calculated on the assumption that the long-range alpha decay is unhindered with respect to the ground-state alpha decay.