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Lu, BN; Zhao, EG; Zhou, SG; Lu, BN (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Potential energy surfaces of actinide nuclei from a multidimensional constrained covariant density functional theory: Barrier heights and saddle point shapes
发表期刊PHYSICAL REVIEW C
语种英语
关键词Mean-field Theory Hartree-bogoliubov Theory Ground-state Properties Fission-barriers Superheavy Nuclei Heavy-nuclei Deformation Models
摘要The potential energy surfaces of actinide nuclei in the (beta(20), beta(22), beta(30)) deformation space are obtained from a multidimensional constrained covariant density functional theory. With this newly developed theory, we are able to explore the importance of the triaxial and octupole shapes simultaneously along the whole fission path. It is found that aside from the octupole deformation, the triaxiality also plays an important role upon the second fission barriers. Both the outer and the inner barriers are lowered by the triaxial deformation compared with axially symmetric results. This lowering effect for the reflection-asymmetric outer barrier is 0.5 similar to 1 MeV, accounting for 10%similar to 20% of the barrier height. With the inclusion of the triaxial deformation, a good agreement with the data for the outer barriers of actinide nuclei is achieved.
2012
ISSN0556-2813
卷号85期号:1页码:11301
学科领域Physics
收录类别SCI
项目资助者NSFC [10875157, 10975100, 10979066, 11175252, 11120101005]; MOST [2007CB815000]; CAS [KJCX2-EW-N01, KJCX2-YW-N32] ; NSFC [10875157, 10975100, 10979066, 11175252, 11120101005]; MOST [2007CB815000]; CAS [KJCX2-EW-N01, KJCX2-YW-N32] ; NSFC [10875157, 10975100, 10979066, 11175252, 11120101005]; MOST [2007CB815000]; CAS [KJCX2-EW-N01, KJCX2-YW-N32] ; NSFC [10875157, 10975100, 10979066, 11175252, 11120101005]; MOST [2007CB815000]; CAS [KJCX2-EW-N01, KJCX2-YW-N32]
引用统计
被引频次:101[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15179
专题理论物理所科研产出_SCI论文
通讯作者Lu, BN (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Lu, BN,Zhao, EG,Zhou, SG,et al. Potential energy surfaces of actinide nuclei from a multidimensional constrained covariant density functional theory: Barrier heights and saddle point shapes[J]. PHYSICAL REVIEW C,2012,85(1):11301.
APA Lu, BN,Zhao, EG,Zhou, SG,&Lu, BN .(2012).Potential energy surfaces of actinide nuclei from a multidimensional constrained covariant density functional theory: Barrier heights and saddle point shapes.PHYSICAL REVIEW C,85(1),11301.
MLA Lu, BN,et al."Potential energy surfaces of actinide nuclei from a multidimensional constrained covariant density functional theory: Barrier heights and saddle point shapes".PHYSICAL REVIEW C 85.1(2012):11301.
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