Electron capture by multiply charged ions from hydrogen atoms at low energies

At collision velocities which are slow compared to the motion of the ls hydrogenic electron, electron capture by multiply charged ions from hydrogen atoms is best characterized in terms of a quasimolecular model for the interaction. The capture process is represented as a transition between the stationary states of the quasimolecule. Predicted cross sections depend strongly on the internuclear distance at which the relevant potential energy curves have minimum separation, or cross, and on the dynamics of the coupling between the stationary states. 9 references