Deformed halo nuclei and shape decoupling effects
With the rapid development of radioactive-ion-beam facilities worldwide, many exotic nuclear phenomena have been observed or predicted in nuclei far from the β-stability line or close to the neutron (proton) drip lines, such as halos in atomic nuclei and shape decoupling in deformed halo nuclei. The...
| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
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Science Press
2023-08-01
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| Series: | He jishu |
| Subjects: | |
| Online Access: | http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2023.hjs.46.080015&lang=zh |
| _version_ | 1797737247102992384 |
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| author | SUN Xiangxiang ZHOU Shangui |
| author_facet | SUN Xiangxiang ZHOU Shangui |
| author_sort | SUN Xiangxiang |
| collection | DOAJ |
| description | With the rapid development of radioactive-ion-beam facilities worldwide, many exotic nuclear phenomena have been observed or predicted in nuclei far from the β-stability line or close to the neutron (proton) drip lines, such as halos in atomic nuclei and shape decoupling in deformed halo nuclei. The study of exotic nuclear phenomena, including halos, is at the frontier of current nuclear physics research. The covariant density functional theory (CDFT) is one of the most successful models in nuclear physics. The CDFT has been widely used to study structures and properties of exotic nuclei. The deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) has been developed and achieved a self-consistent description of deformed halo nuclei by including deformation and continuum effects, with the deformed relativistic Hartree-Bogoliubov equations solved in the Dirac Woods-Saxon basis. The DRHBc theory has been used to predict the deformed halo structure in 44Mg and the shape decoupling between the core and halo. The theory has also been used to address unresolved problems concerning the radius and configuration of valence neutrons in 22C, deformed halos in carbon and boron isotopes, particles in the classically forbidden regions in magnesium isotopes, and other similar phenomena. The rotational excitation of deformed halos has been investigated by implementing an angular momentum projection based on the DRHBc theory. This investigation has shown that the effects of deformed halos and shape decoupling are also present in the low-lying rotational excitation states of deformed halo nuclei. |
| first_indexed | 2024-03-12T13:26:51Z |
| format | Article |
| id | doaj.art-c8c001c4ed1a437f829cd192541bc751 |
| institution | Directory Open Access Journal |
| issn | 0253-3219 |
| language | zho |
| last_indexed | 2024-03-12T13:26:51Z |
| publishDate | 2023-08-01 |
| publisher | Science Press |
| record_format | Article |
| series | He jishu |
| spelling | doaj.art-c8c001c4ed1a437f829cd192541bc7512023-08-25T06:53:02ZzhoScience PressHe jishu0253-32192023-08-0146808001508001510.11889/j.0253-3219.2023.hjs.46.0800150253-3219（2023）08-0146-09Deformed halo nuclei and shape decoupling effectsSUN Xiangxiang0ZHOU Shangui1School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, ChinaSchool of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, ChinaWith the rapid development of radioactive-ion-beam facilities worldwide, many exotic nuclear phenomena have been observed or predicted in nuclei far from the β-stability line or close to the neutron (proton) drip lines, such as halos in atomic nuclei and shape decoupling in deformed halo nuclei. The study of exotic nuclear phenomena, including halos, is at the frontier of current nuclear physics research. The covariant density functional theory (CDFT) is one of the most successful models in nuclear physics. The CDFT has been widely used to study structures and properties of exotic nuclei. The deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) has been developed and achieved a self-consistent description of deformed halo nuclei by including deformation and continuum effects, with the deformed relativistic Hartree-Bogoliubov equations solved in the Dirac Woods-Saxon basis. The DRHBc theory has been used to predict the deformed halo structure in 44Mg and the shape decoupling between the core and halo. The theory has also been used to address unresolved problems concerning the radius and configuration of valence neutrons in 22C, deformed halos in carbon and boron isotopes, particles in the classically forbidden regions in magnesium isotopes, and other similar phenomena. The rotational excitation of deformed halos has been investigated by implementing an angular momentum projection based on the DRHBc theory. This investigation has shown that the effects of deformed halos and shape decoupling are also present in the low-lying rotational excitation states of deformed halo nuclei.http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2023.hjs.46.080015&lang=zhcovariant density functional theorydeformed halo nucleishape decoupling effectsrotational excitation |
| spellingShingle | SUN Xiangxiang ZHOU Shangui Deformed halo nuclei and shape decoupling effects He jishu covariant density functional theory deformed halo nuclei shape decoupling effects rotational excitation |
| title | Deformed halo nuclei and shape decoupling effects |
| title_full | Deformed halo nuclei and shape decoupling effects |
| title_fullStr | Deformed halo nuclei and shape decoupling effects |
| title_full_unstemmed | Deformed halo nuclei and shape decoupling effects |
| title_short | Deformed halo nuclei and shape decoupling effects |
| title_sort | deformed halo nuclei and shape decoupling effects |
| topic | covariant density functional theory deformed halo nuclei shape decoupling effects rotational excitation |
| url | http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2023.hjs.46.080015&lang=zh |
| work_keys_str_mv | AT sunxiangxiang deformedhalonucleiandshapedecouplingeffects AT zhoushangui deformedhalonucleiandshapedecouplingeffects |