摘要
为了扩展以简谐振子为基矢的常规壳模型（ＳＭ）计算到晕核，提出了自相似结构壳模型（ＳＳＭ）．通过对简谐振子动能项和势能项的重度规以及单粒子平均场模拟，可以得到ＳＳＭ中的单粒子轨道有态相关的圆频率，在ＳＳＭ中，晕核大的均方根半径、厚的中子皮以及Ｂｏｒｒｏｍｅａｎ晕核和的束缚态性质能够再现出来。
In Order to extend the conventional shell model(SM) calculation with harmonic oscillator bases to halo nuclei, a self-similar, structure shell model(SSM) is proposed. The SSM is achieved by a rescaling of both the Kinetic and potential energy term of the harmonic oscillator and a mean field imitation, so that the single particle orbit in SSM has state (orbit) -dependent frequency. The large r. m. s. radius and the thick neutron skin for halo nuclei as well as the bound state properties of Borromean nuclei such as 6He, 11Li and 14Be can be reproduced.
出处
《高能物理与核物理》
CSCD
北大核心
1998年第4期333-340,共8页
High Energy Physics and Nuclear Physics
基金
中国科学院LWTZ-1298和国家自然科学基金
关键词
重度规
平均场模拟
B-核
自相似
结构壳模型
rescaling, mean field imitation, Borromean nuclei Received 14 March 1997*CAS LWTZ-1298 and Suported by the National Natural Science Foundation of China
