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Tetrahedral shapes of neutron-rich Zr isotopes from a multidimensionally constrained relativistic Hartree-Bogoliubov model

文献类型：期刊论文

作者Zhao, Jie1,2; Lu, Bing-Nan1,3,4; Zhao, En-Guang1,5; Zhou, Shan-Gui1,5,6,7
刊名PHYSICAL REVIEW C
出版日期2017-01-18
卷号95页码:16
ISSN号2469-9985
DOI10.1103/PhysRevC.95.014320
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关键词GROUND-STATE PROPERTIES ; MEAN-FIELD-THEORY ; ASTROPHYSICAL R-PROCESS ; DOUBLY ODD NUCLEI ; SIGNATURE INVERSION ; ATOMIC-NUCLEI ; FINITE NUCLEI ; REFLECTION ASYMMETRY ; SPIN ASSIGNMENTS ; DEFORMED-NUCLEI
资助项目National Key Basic Research Program of China[2013CB834400] ; National Natural Science Foundation of China[11120101005] ; National Natural Science Foundation of China[11275248] ; National Natural Science Foundation of China[11475115] ; National Natural Science Foundation of China[11525524] ; National Natural Science Foundation of China[11621131001] ; National Natural Science Foundation of China[11647601] ; Knowledge Innovation Project of the Chinese Academy of Sciences[KJCX2-EW-N01]
WOS研究方向Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000392077700004
资助机构National Key Basic Research Program of China ; National Natural Science Foundation of China ; Knowledge Innovation Project of the Chinese Academy of Sciences
源URL[http://119.78.100.186/handle/113462/44187]  
专题中国科学院近代物理研究所
通讯作者Zhou, Shan-Gui
作者单位1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Zagreb, Dept Phys, Fac Sci, Bijenicka 32, Zagreb 10000, Croatia
3.Forschungszentrum Julich, Inst Kernphys IKP 3, D-52425 Julich, Germany
4.Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
5.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
6.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China
7.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Hunan, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Jie,Lu, Bing-Nan,Zhao, En-Guang,et al. Tetrahedral shapes of neutron-rich Zr isotopes from a multidimensionally constrained relativistic Hartree-Bogoliubov model[J]. PHYSICAL REVIEW C,2017,95:16.
APA Zhao, Jie,Lu, Bing-Nan,Zhao, En-Guang,&Zhou, Shan-Gui.(2017).Tetrahedral shapes of neutron-rich Zr isotopes from a multidimensionally constrained relativistic Hartree-Bogoliubov model.PHYSICAL REVIEW C,95,16.
MLA Zhao, Jie,et al."Tetrahedral shapes of neutron-rich Zr isotopes from a multidimensionally constrained relativistic Hartree-Bogoliubov model".PHYSICAL REVIEW C 95(2017):16.

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来源：近代物理研究所

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