Role of triaxiality in deformed halo nuclei
Role of triaxiality in deformed halo nuclei
复制标题
三轴性在变形晕核中的作用
DOI：
10.1103/physrevc.104.l011303
复制
发表时间：
2021
影响因子：
3.1
通讯作者：
Yoshida K.
中科院分区：
文献类型：
--
作者：
Uzawa K.;Hagino K.;Yoshida K.
核形变是丰中子核产生晕结构的重要原因，它通过混合几个角动量分量而产生晕结构。虽然以前的理论研究这个问题的文献中假设轴对称变形，我们在这里考虑非轴对称变形。在三轴形变条件下，单粒子波函数中混入了单粒子角动量在对称轴上的投影Ω量子数，在轴对称形变条件下，即使不存在晕结构，也可能产生晕结构.这样，当考虑三轴变形时，晕核的范围可以扩大。我们证明了这一想法，使用变形的伍兹-撒克逊潜力的中子数N= 13和43的核。
It is known that nuclear deformation plays an important role in inducing the halo structure in neutron-rich nuclei by mixing several angular momentum components. While previous theoretical studies on this problem in the literature assume axially symmetric deformation, we here consider nonaxially symmetric deformations. With triaxial deformation, the Ω quantum number is admixed in a single-particle wave function, where Ω is the projection of the single-particle angular momentum on the symmetric axis, and the halo structure may arise even when it is absent with the axially symmetric deformation. In this way, the area of halo nuclei may be extended when triaxial deformation is considered. We demonstrate this idea using a deformed Woods-Saxon potential for nuclei with neutron number N= 13 and 43.