Single, double, and triple Auger decay probabilities ofC+(1s2s22p22D,2P)resonances

Abstract

Single, double, and triple Auger decay rates of ${\mathrm{C}}^{+}(1s2{s}^{2}2{p}^{2}{\phantom{\rule{0.16em}{0ex}}}^{2}D,{\phantom{\rule{0.16em}{0ex}}}^{2}P)$ resonances were calculated in the framework of perturbation theory. The direct double Auger decay probabilities were calculated by using the approximate formulas according to the knockout and shakeoff mechanisms, in which the knockout mechanism was found to be dominant. Then the knockout mechanism was employed to investigate the complex triple Auger decay process, and the calculated rates have good agreement with the available experimental values.