Theoretical studies on Alpha decay half-lives of Astatine isotopes

Author:

Hosseini S. S.1,Hassanabadi H.1,Akrawy Dashty T.23,Ahmed Ali H.43

Affiliation:

1. Faculty of Physics, Shahrood University of Technology, Shahrood, Iran

2. Advanced Physics Laboratory, Research Center, Salahaddin University, Erbil 44001, 10 Kurdistan, Iraq

3. Becquerel Institute for Radiation Research and Measurements, Erbil, Kurdistan, Iraq

4. Department of Physics, College of Science, Salahaddin University, Erbil, Kurdistan, Iraq

Abstract

The half-life of a parent nucleus of Astatine isotopes [Formula: see text] decaying via alpha emission is investigated by employing Coulomb and proximity potential model (CPPM) using the WKB barrier penetration probability and other different analytical and semiempirical formulae of Royer, AKRE, Akrawy, RoyerB, MRoyerB, MRenB, SemFIS, VS and SLB. In the calculation of Alpha decay (AD) half-life the available experimental and theoretical [Formula: see text]-values with the total alpha kinetic energy have been considered. The behavior of hindrance factor with the variation of mass numbers of parent nuclei for isotopes in the range [Formula: see text] and the effect of magic number at closed shells were investigated. Through the comparison of obtained results from the systematics with the experimental data, the prediction of SemFIS formula was the best among the studied ones where it shows the minimum standard deviation of 0.829881.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

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