Electron capture into Rydberg states in collisions between multiply charged ions and hydrogen

We investigate the substate distribution sigmasub(nlm) in Rydberg manifolds (n-10) following an asymmetric charge transfer reaction, C6++H(1s)->C5+(nlm)+H+, at velocities upsilon>=1 a.u. These calculations serve as testing ground for two novel features included in our theoretical treatment, namely, (1) the use of a multiple scattering approach, the continuum distorted wave (CDW) approximation, to describe the capture process, and (2) the explicit inclusion of the post-collision interaction (PCI) with the residual target ion to supplement the primary capture amplitude. A measure of the multiple scattering contributions is obtained by comparison with the predictions of the first Born (OBK, single scattering) approximation whereas the PCI effects are gauged by inspection of the (l,m)-distributions obtained from the resulting CDW(OBK)-PCI model with those calculated with the standard CDW (OBK) approximation. (orig.)