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

2014 We calculate the cross section for the charge exchange process in Li2+(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 (03BD 0.5 a.u.) the most important contribution to the total cross section is due to transitions in the neighbourhood of the 1303A32 303A3 pseudo-crossing (for R 9 a.u.). For 03BD larger than 0.5 a.u. a three state 1303A3 3 303A3 13 03A0 mechanism becomes dominant. The agreement with experimental data is good at low velocities (0.5 03BD 0.8 a.u.). J. Physique 46 (1985) 719-726 MAI 1985, Classification Physics Abstracts 34.70