CAJ | 학술논문

在单粒子壳模型下,研究了N=8及N=9同中子素的基态性质.通过在伍兹-萨克逊势深中引入同位旋依赖项,考虑了同位旋效应对核平均势的影响.理论计算的均方根半径和自旋宇称值与实验结果整体上符合较好,尤其是N=9同中子素中的2s1/2与1d5/2中子能级间的能级反转得到了较好的解释.计算结果还显示在14B和15C基态中存在单中子晕.
재단입자각모형하,연구료N=8급N=9동중자소적기태성질.통과재오자-살극손세심중인입동위선의뢰항,고필료동위선효응대핵평균세적영향.이론계산적균방근반경화자선우칭치여실험결과정체상부합교호,우기시N=9동중자소중적2s1/2여1d5/2중자능급간적능급반전득도료교호적해석.계산결과환현시재14B화15C기태중존재단중자훈.
The ground-state properties of N=8 and N=9 isotones are investigated in the framework of the single-particle shell model. The isospin effect on the average nuclear potential is taken into account by introducing an isospin-dependent term in the depth of the Woods-Saxon potential. The theoretical results of RMS radii and spin-parity values are in agreement with the experimental data. Especially, the level inversion between neutron levels 2s1/2 and 1d5/2 in N=9 isotones is reproduced. A detailed discussion on numerical results is given and one-neutron halos in the ground states of 14B and 15C are presented.