Charge exchange in Li2+(1s) + H(ls) collisions. a molecular approach including two-electron translation factors

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Abstract
We calculate the cross section for the charge exchange process in Li 2+(1s) + H(1s) collisions, using an eight term molecular expansion that includes a two-electron common translation factor. The results are stable with respect to the variations of the parameters included in this translation factor. At low velocities (ν < 0.5 a.u.) the most important contribution to the total cross section is due to transitions in the neighbourhood of the 13Σ-2 3Σ pseudo-crossing (for R < 9 a.u.). For ν larger than 0.5 a.u. a three state 13Σ - 3 3Σ - 13 Π mechanism becomes dominant. The agreement with experimental data is good at low velocities (0.5 < ν < 0.8 a.u.)
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