Half-lives of heavy nuclei within simple phenomenological models

Abstract

We have studied the competition between alpha decay and the spontaneous fission processes in heavy isotopes. The half-lives of nuclei were calculated using phenomenological formulae, based on Świteckiʼs, idea (1955 Phys. Rev. 100 937) for spontaneous fission and a Gamow-like model (2013 Phys. Rev. C 87 024308) for alpha decay. Elements with the atomic number were considered.