Multiplet effects on theL2,3fluorescence yield of multiply ionized Ar

The $2p$ fluorescence yield of Ar in the presence of zero to six $3p$ holes has been calculated by statistically averaging the fluorescence yields of initial states that consist of individual multiplet configurations, formed by coupling the $2p$ vacancy to the partially filled $3p$ shell. The $L_{2,3}$ fluorescence yields for the ${\mathrm{}\left(2p\right)\mathrm{}}^{-1\mathrm{}}{\mathrm{}\left(3p\right)\mathrm{}}^{-n}$ configurations of Ar are found to be 1.48, 17.97, 24.83, 37.84, 79.61, 112.16, and 121.48 × ${10}^{-4\mathrm{}}$ for $n=0,1,2,3,4,5, \mathrm{and} 6$, respectively. Results agree reasonably well with experimental fluorescence yields deduced from ion-atom collision measurements.