Extended Thomas-Fermi density functionals in the presence of a tensor interaction in spherical symmetry
Extended Thomas-Fermi density functionals in the presence of a tensor interaction in spherical symmetry
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DOI：
10.1103/physrevc.77.024311
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发表时间：
2008-02
影响因子：
3.1
通讯作者：
J. Bartel;K. Bencheikh;Jacques Meyer
中科院分区：
文献类型：
--
作者：
J. Bartel;K. Bencheikh;Jacques Meyer
对于从与Skyrme有效相互作用相关联的能量密度泛函获得的单体哈密顿量，包括张量力，在扩展的B-Fermi方法的框架中，在球对称中，对于动能和自旋轨道密度，导出半经典泛函密度。研究了用这种半经典泛函构造的自洽平均场势的结构。张量力对自旋轨道形状因子的影响清楚地表明，在原子核的理论描述中包括这种张量力项的必要性，以及它们对奇异核壳层结构的可能影响。
For a one-body Hamiltonian obtained from the energy-density functional associated with a Skyrme effective interaction, including a tensor force, semiclassical functional densities are derived in the framework of the Extended Thomas-Fermi method, in spherical symmetry, for the kinetic energy and spin-orbit density. The structure of the self-consistent mean-field potentials constructed with such semiclassical functionals is studied. The impact of the tensor force in particular on the spin-orbit form factor clearly indicates the necessity of including such tensor-force terms in the theoretical description of atomic nuclei and their possible influence on the shell structure of exotic nuclei.