The molecular-orbital close-coupling method is employed to calculate the total charge transfer cross sections for Be4+ + H( 1s) collisions in the impact energy region E s 25.0 keV amu-'. The electron translation factor is not included. A linear trajectory is assumed and the origin of the reference frame is placed on H+. The convergence properties concerning the overall behaviour and the oscillatory structure of the total cross sections are investigated thoroughly. The oscillatory structure is caused by the in…
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