Akrawy, Dashty T. and Poenaru, Dorin N. and Ahmed, Ali H. and Sihver, Lembit * (2022) α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects. Nuclear Physics A, 1021. ISSN 1873-1554
Full text not available from this repository.Abstract
We present a modified version of the semi-empirical formula SemFIS, which is based on the fission theory for predicting the alpha decay half-lives. The first version of SemFIS was found by D. N. Poenaru et al. and was at that time the best formula to predict the alpha-decay half-lives of superheavy nuclei among 18 different existing models. We compare a modified version of SemFIS against the old version and experimental data for four groups of alpha emitters: even-even; even-odd; odd-even, and odd-odd parent nuclei. Two sets of experimental values are used: set A, and set B. There are 356 nuclides in set A [137 e-e, 90 e-o, 66 o-e, and 63 o-o with Zmin, Zmax of (52,118); (52,112); (63,117), and (53,117), and Amin, Amax of (108,294); (107,281); (147,293), and (110,294), respectively]. Set B includes 420 α-emitters [144 e-e, 112 e-o, 84 o-e, and 80 o-o] with Zmin, Zmax of (52,118); (52,116); (53,117), and (53,117), and Amin, Amax of (106,294); (105,293);(111,293) and (110,294)]. Our study shows that the modified version of SemFIS gives better agreements with the experimental data than previously published versions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | alpha-decay; SemFIS; superheavy nuclei; |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Others > Non Sunway Academics Sunway University > School of Medical and Life Sciences [formerly School of Healthcare and Medical Sciences until 2020] > Centre of Biomedical Physics [wef 2021 changed to Research Centre for Applied Physics and Radiation Technologies and moved to SET ] |
| Depositing User: | Ms Yong Yee Chan |
| Date Deposited: | 03 Aug 2024 08:16 |
| Last Modified: | 03 Aug 2024 08:16 |
| URI: | http://eprints.sunway.edu.my/id/eprint/2961 |
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