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Potential energy surfaces of actinide and transfermium nuclei from multi-dimensional constraint covariant density functional theories

Abstracts

Multi-dimensional constrained covariant density functional theories were developed recently. In these theories, all shape degrees of freedom βλμ deformations with even μ are allowed, e.g., β20, β22, β30, β32, β40, β42, β44, and so on and the CDFT functional can be one of the following four forms: the meson exchange or point-coupling nucleon interactions combined with the non-linear or density-dependent couplings. In this contri- bution, some applications of these theories are presented. The potential energy surfaces of actinide nuclei in the (β20 , β22 , β30 ) deformation space are investigated. It is found that besides the octupole deformation, the triaxiality also plays an important role upon the second fission barriers. The non-axial reflection-asymmetric β32 shape in some transfermium nuclei with N = 150, namely 246Cm, 248Cf, 250Fm, and 252No are studied.
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Recommended references: Bing-Nan Lu,Jie Zhao,En-Guang Zhao,Shan-Gui Zhou.(2017).Potential energy surfaces of actinide and transfermium nuclei from multi-dimensional constraint covariant density functional theories.[ChinaXiv:201707.00938] (Click&Copy)
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[V1] 2017-07-30 16:07:09 chinaXiv:201707.00938V1 Download
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