Folding model analysis of proton radioactivity of spherical proton emitters

2005/03/31 by D. N. Basu, P. Roy Chowdhury, P. Chowdhury +1 · 4 citations
Physics and Astronomy · #Atomic and Molecular Physics #Neutrino Physics Research #Nuclear physics research studies #nucl-th

paper · pdf · doi:10.1103/physrevc.72.051601

published as Phys.Rev. C72 (2005) 051601 · 6 pages

openalex publication_date 2005/11/16 · arxiv created 2005/11/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

Half-lives of the decays of spherical nuclei away from the proton drip line by proton emissions are estimated theoretically. The quantum mechanical tunneling probability is calculated within the WKB approximation. Microscopic proton-nucleus interaction potentials are obtained by single folding the densities of the daughter nuclei with M3Y effective interaction supplemented by a zero-range pseudopotential for exchange along with the density dependence. Parameters of the density dependence are obtained from the nuclear matter calculations. Spherical charge distributions are used for Coulomb interaction potentials. These calculations provide reasonable estimates for the observed proton-radioactivity lifetimes of proton-rich nuclei for proton emissions from 26 ground and isomeric states of spherical proton emitters.

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