类锂原子体系基态和激发态的比质量移位

Specific Mass Shifts for the Ground and Excited States of Lithium-like Systems

用全实加关联波函数计算了类锂原子体系（核电荷3～10）的基态ls22s和激发态ls2nl（l=s，p，d，f；n≤5）的比质量移位．与实验数据及其它理论结果的比较表明，全实加关联方法适用于计算对电子关联效应特别敏感的物理量．

The specific mass shifts of the ground state, ls22s, and excited states, ls2nl (l=s, p, d, fand n≤5), for the lithium isoelectronic sequence from Z=3 to 10 were calculated by using the fullcore plus correlation wavefunctions. Our results were compared with the existing experimental and theoretical data in literature. Their agreement is fairly good. Our results for ls24p and ls25p states of 6,7Li support the recent experimentally extrapolated values. They indicate that the full-core plus correlation method is particularly suitable for calculating this quantity which is very sensitive to electron correlation effects.