Relativistic Mean-Field Study of Alpha Decay in Superheavy Isotopes with 100 ≤ Z ≤ 120

IF 0.4 Q4 PHYSICS, PARTICLES & FIELDS Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI:10.1134/s1547477124700791

N. Jain, M. Bhuyan, R. Kumar

{"title":"Relativistic Mean-Field Study of Alpha Decay in Superheavy Isotopes with 100 ≤ Z ≤ 120","authors":"N. Jain, M. Bhuyan, R. Kumar","doi":"10.1134/s1547477124700791","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The \\(\\alpha \\)-decay half-lives of superheavy nuclei with \\(100 \\leqslant Z \\leqslant 120\\) are comprehensively analyzed using the axially deformed relativistic mean field (RMF) formalism for the NL3* parameter set. We employ RMF binding energies to determine the \\(\\alpha \\)-decay energies and make a comparison with both the available experimental data and the theoretical results obtained from the global nuclear mass model WS4. The four distinct formulae, specifically the modified scaling law Brown, modified Viola-Seaborg, Yibin et al. formula, and its modified form are used to calculate the decay half-lives and examine the numerical correlation between the half-life (\\({{T}_{{1/2}}}\\)) for each \\(\\alpha \\)-decay energy. We notice that \\({{T}_{{1/2}}}\\) is significantly dependent on the decay formula in terms of isospin asymmetry and decay energy. We also noticed that modified scaling law Brown formula estimates of half-lives agreed comparatively better with the experiment as compared to others. Moreover, the present investigation provides significant information on the stability of the superheavy island considered for ongoing and/or future experiments.","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"107 1","pages":""},"PeriodicalIF":0.4000,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Particles and Nuclei Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1134/s1547477124700791","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}

引用次数: 0

Abstract

The \(\alpha \)-decay half-lives of superheavy nuclei with \(100 \leqslant Z \leqslant 120\) are comprehensively analyzed using the axially deformed relativistic mean field (RMF) formalism for the NL3* parameter set. We employ RMF binding energies to determine the \(\alpha \)-decay energies and make a comparison with both the available experimental data and the theoretical results obtained from the global nuclear mass model WS4. The four distinct formulae, specifically the modified scaling law Brown, modified Viola-Seaborg, Yibin et al. formula, and its modified form are used to calculate the decay half-lives and examine the numerical correlation between the half-life (\({{T}_{{1/2}}}\)) for each \(\alpha \)-decay energy. We notice that \({{T}_{{1/2}}}\) is significantly dependent on the decay formula in terms of isospin asymmetry and decay energy. We also noticed that modified scaling law Brown formula estimates of half-lives agreed comparatively better with the experiment as compared to others. Moreover, the present investigation provides significant information on the stability of the superheavy island considered for ongoing and/or future experiments.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

100 ≤ Z ≤ 120 的超重同位素中阿尔法衰变的相对论均场研究

摘要利用轴向变形相对论平均场（RMF）形式主义，对NL3*参数集的超重核的（α）衰变半衰期进行了全面分析。我们利用RMF结合能来确定（α）衰变能，并与现有的实验数据和全局核质量模型WS4的理论结果进行了比较。我们使用了四种不同的公式，特别是修正的缩放定律布朗公式、修正的维奥拉-塞伯格公式、宜宾等人公式及其修正形式来计算衰变半衰期，并考察了每种（α）衰变能量的半衰期（\({{T}_{{1/2}}\)）之间的数值相关性。我们注意到\({{T}_{{1/2}}}在很大程度上依赖于等空间不对称和衰变能的衰变公式。我们还注意到，与其他公式相比，修正的缩放定律布朗公式估计的半衰期与实验吻合得更好。此外，本研究还为正在进行和/或未来实验所考虑的超重岛的稳定性提供了重要信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Physics of Particles and Nuclei Letters PHYSICS, PARTICLES & FIELDS-

CiteScore

0.80

自引率

20.00%

发文量

108

期刊介绍： The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.