Charge exchange in C6+ + H (1s) collisions at low energies

The low-energy single electron capture cross-sections by C6+ from H atoms have been evaluated employing the semiclassical, impact parameter, close-coupling method based on a molecular expansion augmented with the plane-wave translation factor. Using the method of Bates and Carson, the exact Born–Oppenheimer eigenfunctions and eigenvalues are calculated. Eight-state coupled equations are solved to obtain transition probabilities and thereby evaluate capture cross-sections. Our calculated capture cross-sections agree well with other theoretical and experimental results. At these energies it is found that the capture into the n = 4 manifold of the C5+ remains the main contributor to the charge exchange process. © 2003 Wiley Periodicals, Inc. Int J Quantum Chem, 2003