二价硅离子3snp^1P_1序列能级的辐射寿命

THE RADIATIVE LIFETTIMES FOR THE SINGLY EXCITED 3snp1p1 SERIES OF DIVALENT SILICON ATOM

考虑了二价硅离子双激发干扰态３ｐ４ｓ１ｐ１和３ｐ３ｄ１ｐ１对３ｓｎｐ１Ｐ１Ｒｙｄｂｅｒｇ序列能级的强组态相互作用，用多组态ＨＦＲ自洽场方法计算了ＳｉⅢ离子３ｓｎｐ１Ｐ１（ｎ＝３～７）序列能级的辐射寿命。计算结果表明该序列能级寿命随主量数ｎ呈现非规则变化。对其原因进行了讨论，并将结果与已有的实验和理论计算结果进行了比较。

Based on the strong configuration mixing between the doubly excited states 3p4s1P1,3P3d1p1 and the singly excited 3snp1p1 series,this paper has calculated the radiative lifetimesof the 3snp1P1 series(n=3～7) for ion Si Ⅲ by using the multi-configuration HFR self-con-sistent field method.The calculated results show more drastic nonuniform variation of theradiative lifetimes of the 3snp1p1 series as the principal quantum number n increases.Com-parisons with the existing theoretical and experimental data are also presentel