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题名: Potential energy surfaces of actinide nuclei from a multidimensional constrained covariant density functional theory: Barrier heights and saddle point shapes
作者: Lu, BN ;  Zhao, EG ;  Zhou, SG
刊名: PHYSICAL REVIEW C
出版日期: 2012
卷号: 85, 期号:1, 页码:11301
关键词: MEAN-FIELD THEORY ;  HARTREE-BOGOLIUBOV THEORY ;  GROUND-STATE PROPERTIES ;  FISSION-BARRIERS ;  SUPERHEAVY NUCLEI ;  HEAVY-NUCLEI ;  DEFORMATION ;  MODELS
学科分类: Physics
通讯作者: Lu, BN (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Lu, Bing-Nan; Zhao, En-Guang; Zhou, Shan-Gui] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Zhao, En-Guang; Zhou, Shan-Gui] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; [Zhao, En-Guang] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
英文摘要: 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.
资助者: NSFC [10875157, 10975100, 10979066, 11175252, 11120101005]; MOST [2007CB815000]; CAS [KJCX2-EW-N01, KJCX2-YW-N32]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000298988500001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15179
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Lu, BN,Zhao, EG,Zhou, SG. 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.
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