Electron capture into different (n,l) states in slow collisions of C6+, N6+, O6+, and Ne6+ on He and He2 targets

Absolute cross sections for electron capture into different nl states for C6+, N6+, O6+, Ne6+--He and N6+, O6+--H2 collisions in the 0.15--0.5 a.u. velocity range have been measured. These cross sections strongly depend on the collision velocity, in contrast with the total capture cross sections and the cross sections for capture into different n states. Similarities in sigma/sub n/l(v) dependences for different ions with the same ionic charge are found which are attributed to the hydrogenlike structure of the energy levels of these ions