Evidence for nonstatistical population of configurations in Li-like neon followingCl13+→ Ne collisions

Recent measurements of the x-ray and Auger line strengths in Li-like neon produced by 45-MeV ${\mathrm{Cl}}^{13+}$ → Ne collisions are compared with theoretical values. We assume that in the collision there is a statistical population of configurations and multiplet states. An overpopulation of the $1s2s^2$ and $1s2s2p$ configurations (relative to the $1s2p^2$) is observed. We suggest cascade feeding as a likely mechanism for producing this effect.