极端丰中子核^(11)Li软巨偶极共振的研究  

THE SOFT DIPOLE RESONANCE IN EXTREMELY NEUTRON RICH NUCLEUS^(11) Li

作　　者：蔡延璜 

机构地区：[1]中国科学院上海原子核研究所,ccast成员201800

出　　处：《高能物理与核物理》1993年第9期839-844,共6页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金;中国科学院LWTZ-1298资助

摘　　要：在微观Vlasov方程的框架下,研究了^(11)Li核的巨偶极共振。正常的及软巨偶极共振的计算结果都与实验值较好地符合。这两种模式对平均场自旋-轨道耦合力的依赖都十分敏感。而^(11)Li中子晕的分布仅对软巨偶极共振有着十分重要的效应。同时也讨论了中子分离能的影响。Giant dipole resonances (GDR) in nucleus ^(11)Li have been studied within a microscopic Vlasov approach. A quite fair agreement with the experimental value is found. The results for both normal and soft modes are very sensitive to the spin-orbit coupling in mean field, while the soft mode is quite dependent on the extension of neutron halo in ^(11)Li. The effects of separation energy of one neutron are also discussed.

关 键 词：巨偶极共振 锂11 中子分离能 

分 类 号：O571.22[理学—粒子物理与原子核物理]