Theoretical studies on the $$\alpha $$ α decay half-lives of hyper and normal isotopes of Po

Abstract

The $$\alpha $$ decay half-lives of hyper and normal isotopes of Po nuclei are studied in the present work. The inclusion of $$\Lambda $$ –N interaction changes the half-life for $$\alpha $$ decay. The theoretical predictions on the $$\alpha $$ decay half-lives of normal Po isotopes are compared with experimental results and are seen to be matching well with each other. The neutron shell closure at $$N = 126$$ is found to be the same for both normal and hypernuclei. The Geiger–Nuttal (G–N) law for $$\alpha $$ decay is unaltered in the case of hypernuclei. The hypernuclei will decay into normal nuclei by mesonic or non-mesonic decay modes. Since the half-lives of normal Po nuclei are well within the experimental limits, our theoretical results suggest experimental verification of the $$\alpha $$ emission from hyper Po nuclei in a cascade process.