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题名: Tetrahedral shapes of neutron-rich Zr isotopes from a multidimensionally constrained relativistic Hartree-Bogoliubov model
作者: Zhao, J;  Lu, BN;  Zhao, EG;  Zhou, SG
刊名: PHYSICAL REVIEW C
出版日期: 2017
卷号: 95, 期号:1, 页码:14320
学科分类: Physics
DOI: http://dx.doi.org/10.1103/PhysRevC.95.014320
通讯作者: Zhou, SG (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
合作性质: 国际
英文摘要: We develop a multidimensionally constrained relativistic Hartree-Bogoliubov (MDC-RHB) model in which the pairing correlations are taken into account by making the Bogoliubov transformation. In this model, the nuclear shape is assumed to be invariant under the reversion of x and y axes; i.e., the intrinsic symmetry group is V-4 and all shape degrees of freedom beta(gamma mu) with even mu are included self-consistently. The RHB equation is solved in an axially deformed harmonic oscillator basis. A separable pairing force of finite range is adopted in the MDC-RHB model. The potential energy curves of neutron-rich even-even Zr isotopes are calculated with relativistic functionals DD-PC1 and PC-PK1 and possible tetrahedral shapes in the ground and isomeric states are investigated. The ground state shape of Zr-110 is predicted to be tetrahedral with both functionals and so is that of Zr-112 with the functional DD-PC1. The tetrahedral ground states are caused by large energy gaps around Z = 40 and N = 70 when beta(32) deformation is included. Although the inclusion of the beta(30) deformation can also reduce the energy around beta(20) = 0 and lead to minima with pear-like shapes for nuclei around Zr-110, these minima are unstable due to their shallowness.
WOS标题词: 允许多值(多值间使用英文分号分隔)
类目[WOS]: Physics, Nuclear
研究领域[WOS]: 允许多值(多值间使用英文分号分隔)
关键词[WOS]: GROUND-STATE PROPERTIES ;  MEAN-FIELD-THEORY ;  ASTROPHYSICAL R-PROCESS ;  DOUBLY ODD NUCLEI ;  SIGNATURE INVERSION ;  ATOMIC-NUCLEI ;  FINITE NUCLEI ;  REFLECTION ASYMMETRY ;  SPIN ASSIGNMENTS ;  DEFORMED-NUCLEI
收录类别: SCI
项目资助者: National Key Basic Research Program of China [2013CB834400] ;  National Natural Science Foundation of China [11120101005, 11275248, 11475115, 11525524, 11621131001, 11647601] ;  Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01]
语种: 英语
WOS记录号: WOS:000392077700004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21229
Appears in Collections:理论物理所计算集群成果_计算集群论文-标明致谢

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Recommended Citation:
Zhao, J,Lu, BN,Zhao, EG,et al. Tetrahedral shapes of neutron-rich Zr isotopes from a multidimensionally constrained relativistic Hartree-Bogoliubov model[J]. PHYSICAL REVIEW C,2017,95(1):14320.
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