Study of Xi- hypernuclei in the Skyrme-Hartree-Fock approach
Study of Xi- hypernuclei in the Skyrme-Hartree-Fock approach
复制标题
Skyrme-Hartree-Fock 方法中 Xi 超核的研究
DOI：
10.1140/epja/s10050-020-00143-7
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发表时间：
2020
影响因子：
2.7
通讯作者：
Schulze H-J
中科院分区：
文献类型：
--
作者：
Jin Yun;Zhou Xian-Rong;Cheng Yi-Yuan;Schulze H-J
本文采用二维Skyrme-Hartree-Fock方法，结合三种不同的Skyrme力，系统地研究了超核的性质。我们探讨了单个超子的杂质效应对核的半径、形变和密度分布的影响，并指出了不同力之间的质的区别。我们发现B [C（g.s.）+]的运动能(1p)]由SLX 3力计算的能量为0.7 MeV，这与KEK E176实验的可能值MeV非常一致。这种弱束缚态的理论预测强烈依赖于核芯的变形，这是详细分析。
The properties ofhypernuclei are studied systematically using a two-dimensional Skyrme–Hartree–Fock approach combined with three differentSkyrme forces fitted to reproduce the existing data. We explore the impurity effect of a singlehyperon on the radii, deformations, and density distributions of the nuclear core and point out qualitative differences between the different forces. We find that theremoval energy ofB [C(g.s.)+(1p)] calculated by the SLX3 force is 0.7 MeV, which is in good agreement with a possible value ofMeV from the KEK E176 experiment. The theoretical prediction for this weakly bound state depends strongly on the deformation of the nuclear core, which is analyzed in detail.