Shell-model study of log⁡ft values for 139,140,141Ba → 139,140,141La transitions

IF 1.7 4区 物理与天体物理 Q2 PHYSICS, NUCLEAR Nuclear Physics A Pub Date : 2024-02-29 DOI:10.1016/j.nuclphysa.2024.122845
Shweta Sharma, Praveen C. Srivastava
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Abstract

In the present work, beta-decay properties such as logft values and half-lives have been systematically studied corresponding to Ba isotopes using large-scale shell-model calculations. An extensive comparison of beta decay results corresponding to 141Ba → 141La using shell-model calculations is made with the recently available experimental data. In addition, we have also calculated the nuclear and beta decay properties corresponding to 139Ba → 139La and 140Ba → 140La transitions. The model-space considered here is Z=5082 and N=82126 with 132Sn core, and the interaction employed here is jj56pnb interaction. The beta decay results using shell-model calculations for all the mentioned isotopes are compared with the available experimental data. This is the first theoretical interpretation corresponding to recent experimental data.

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139,140,141Ba→139,140,141La跃迁对数值的壳模型研究
在本研究中,利用大规模壳模型计算系统地研究了与 Ba 同位素相对应的β衰变特性,如 logft 值和半衰期。利用壳模型计算对 141Ba → 141La 的β衰变结果与最近获得的实验数据进行了广泛的比较。此外,我们还计算了与 139Ba → 139La 和 140Ba → 140La 转变相应的核和β衰变特性。这里考虑的模型空间是以 132Sn 为核的 Z=50-82 和 N=82-126,采用的相互作用是 jj56pnb 作用。利用壳模型计算得出的所有上述同位素的β衰变结果与现有的实验数据进行了比较。这是首次与最新实验数据相对应的理论解释。
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来源期刊
Nuclear Physics A
Nuclear Physics A 物理-物理:核物理
CiteScore
3.60
自引率
7.10%
发文量
113
审稿时长
61 days
期刊介绍: Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.
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