三维晶格曲柄协变密度泛函理论中 $${^{144}\textrm{Ba}}$ 的八极集合的稳健性

IF 3.6 1区 物理与天体物理 Q1 NUCLEAR SCIENCE & TECHNOLOGY Nuclear Science and Techniques Pub Date : 2024-08-07 DOI:10.1007/s41365-024-01532-z
Ze-Kai Li, Yuan-Yuan Wang
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引用次数: 0

摘要

利用三维晶格空间中的克兰金协变密度泛函理论研究了八极双魔核\({^{144}\textrm{Ba}}\)中的八极变形和集合性。根据微观计算的电八极矩,首次在半经典近似中实现了还原 B(E3) 过渡概率。现有数据,包括 I-\(\omega\) 关系和电过渡概率 B(E2) 和 B(E3) 都得到了很好的再现。此外,研究还表明,{^{144}\textrm{Ba}}\的基态表现出轴向八极和四极变形,这种变形一直持续到高自旋(\(I\approx 24\hbar\).
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Robustness of the octupole collectivity in $${^{144}\textrm{Ba}}$$ within the cranking covariant density functional theory in 3D lattice

The octupole deformation and collectivity in octupole double-magic nucleus \({^{144}\textrm{Ba}}\) are investigated using the Cranking covariant density functional theory in a three-dimensional lattice space. The reduced B(E3) transition probability is implemented for the first time in semiclassical approximation based on the microscopically calculated electric octupole moments. The available data, including the I-\(\omega\) relation and electric transitional probabilities B(E2) and B(E3) are well reproduced. Furthermore, it is shown that the ground state of \({^{144}\textrm{Ba}}\) exhibits axial octupole and quadrupole deformations that persist up to high spins (\(I\approx 24\hbar\)).

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来源期刊
Nuclear Science and Techniques
Nuclear Science and Techniques 物理-核科学技术
CiteScore
5.10
自引率
39.30%
发文量
141
审稿时长
5 months
期刊介绍: Nuclear Science and Techniques (NST) reports scientific findings, technical advances and important results in the fields of nuclear science and techniques. The aim of this periodical is to stimulate cross-fertilization of knowledge among scientists and engineers working in the fields of nuclear research. Scope covers the following subjects: • Synchrotron radiation applications, beamline technology; • Accelerator, ray technology and applications; • Nuclear chemistry, radiochemistry, radiopharmaceuticals, nuclear medicine; • Nuclear electronics and instrumentation; • Nuclear physics and interdisciplinary research; • Nuclear energy science and engineering.
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