{"title":"三维晶格曲柄协变密度泛函理论中 $${^{144}\\textrm{Ba}}$ 的八极集合的稳健性","authors":"Ze-Kai Li, Yuan-Yuan Wang","doi":"10.1007/s41365-024-01532-z","DOIUrl":null,"url":null,"abstract":"<p>The octupole deformation and collectivity in octupole double-magic nucleus <span>\\({^{144}\\textrm{Ba}}\\)</span> are investigated using the Cranking covariant density functional theory in a three-dimensional lattice space. The reduced <i>B</i>(<i>E</i>3) transition probability is implemented for the first time in semiclassical approximation based on the microscopically calculated electric octupole moments. The available data, including the <i>I</i>-<span>\\(\\omega\\)</span> relation and electric transitional probabilities <i>B</i>(<i>E</i>2) and <i>B</i>(<i>E</i>3) are well reproduced. Furthermore, it is shown that the ground state of <span>\\({^{144}\\textrm{Ba}}\\)</span> exhibits axial octupole and quadrupole deformations that persist up to high spins (<span>\\(I\\approx 24\\hbar\\)</span>).</p>","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":null,"pages":null},"PeriodicalIF":3.6000,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Robustness of the octupole collectivity in $${^{144}\\\\textrm{Ba}}$$ within the cranking covariant density functional theory in 3D lattice\",\"authors\":\"Ze-Kai Li, Yuan-Yuan Wang\",\"doi\":\"10.1007/s41365-024-01532-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The octupole deformation and collectivity in octupole double-magic nucleus <span>\\\\({^{144}\\\\textrm{Ba}}\\\\)</span> are investigated using the Cranking covariant density functional theory in a three-dimensional lattice space. The reduced <i>B</i>(<i>E</i>3) 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>I</i>-<span>\\\\(\\\\omega\\\\)</span> relation and electric transitional probabilities <i>B</i>(<i>E</i>2) and <i>B</i>(<i>E</i>3) are well reproduced. Furthermore, it is shown that the ground state of <span>\\\\({^{144}\\\\textrm{Ba}}\\\\)</span> exhibits axial octupole and quadrupole deformations that persist up to high spins (<span>\\\\(I\\\\approx 24\\\\hbar\\\\)</span>).</p>\",\"PeriodicalId\":19177,\"journal\":{\"name\":\"Nuclear Science and Techniques\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2024-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Science and Techniques\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1007/s41365-024-01532-z\",\"RegionNum\":1,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Science and Techniques","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s41365-024-01532-z","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
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 (\(I\approx 24\hbar\)).
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.