α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects

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...

Full description

Saved in:
Bibliographic Details
Main Authors: Akrawy, Dashty T., Poenaru, Dorin N., Ahmed, Ali H., Sihver, Lembit *
Format: Article
Published: Elsevier 2022
Subjects:
Online Access:http://eprints.sunway.edu.my/2961/
https://doi.org/10.1016/j.nuclphysa.2022.122419
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.sunway.eprints.2961
record_format eprints
spelling my.sunway.eprints.29612024-08-03T08:16:28Z http://eprints.sunway.edu.my/2961/ α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects Akrawy, Dashty T. Poenaru, Dorin N. Ahmed, Ali H. Sihver, Lembit * Q Science (General) QC Physics 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. Elsevier 2022 Article PeerReviewed 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 https://doi.org/10.1016/j.nuclphysa.2022.122419 10.1016/j.nuclphysa.2022.122419
institution Sunway University
building Sunway Campus Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Sunway University
content_source Sunway Institutional Repository
url_provider http://eprints.sunway.edu.my/
topic Q Science (General)
QC Physics
spellingShingle Q Science (General)
QC Physics
Akrawy, Dashty T.
Poenaru, Dorin N.
Ahmed, Ali H.
Sihver, Lembit *
α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects
description 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.
format Article
author Akrawy, Dashty T.
Poenaru, Dorin N.
Ahmed, Ali H.
Sihver, Lembit *
author_facet Akrawy, Dashty T.
Poenaru, Dorin N.
Ahmed, Ali H.
Sihver, Lembit *
author_sort Akrawy, Dashty T.
title α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects
title_short α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects
title_full α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects
title_fullStr α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects
title_full_unstemmed α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects
title_sort α-decay half-lives new semi-empirical relationship including asymmetry, angular momentum and shell effects
publisher Elsevier
publishDate 2022
url http://eprints.sunway.edu.my/2961/
https://doi.org/10.1016/j.nuclphysa.2022.122419
_version_ 1806454419984744448
score 13.211869