高双激发Intershell共振态的辐射和Auger跃迁率

RADIATIVE AND AUGER RATES OF HIGH DOUBLY EXCITED INTERSHELL STATES

采用Conventional infiguration(简写为CI)方法计算了类氦Ar^(16+)离子高双激发Intershell(n>N)共振态的辐射和Auger跃迁率,并利用超球坐标方法和新量子数(K,T)_N^(A2s+1)L来作系统分析。计算结果表明,对A=+1态,Auger过程是主要的,辐射过程仅仅是对给定的多重簇(manifold)中更高的态才有意义。对A=0,-1态,Auger宽度更小。对这些态,辐射过程不可忽视。对双激发的辐射跃迁有近似的选择定则△p=0,±1,y为带振动量子数。

The radiative and Auger rates are calculated for doubly excited intersh-ell states of Ar16+. We adopt the conventional infiguration interraction CI app-roach, bul each state is labelled using the n(K,T)AN 2s+1Lπ designation. lt is shown that, to intrashell states which all have A = +1, these states decay prima-rily by auger process and radiative decay contributed significantly only for the hi-ghest states within a given manifoid, but to intershell states the Auger widths are much smaller tor A =-1 and A = 0 states. For these states the flourescence yield may become non-negligible. The approximate selection rule v=- 0,±1 for radiative decay holds for these states as well.