Abstract

For pt.VI see ibid., vol.26. no.4, p.723-44 (1993). The role of Na(3p) initial orbital alignment in charge transfer reactions induced in H2+-Na(3p) collisions is studied in the keV energy range. A strong alignment effect is observed similarly to what was found for H+-Na(3p) quasi-resonant electron capture. The sigma sigma / sigma 3s and sigma pi / sigma 3s relative total cross sections for electron capture from an initial state of sigma or pi molecular symmetry of the H2+-Na(3p) collision system are measured. A simple theoretical description of this polarization effect is attempted in the frame of the asymptotic theory for charge transfer and the predictions obtained for the H2+-Na(3p) and H+-Na(3p) interactions are compared and discussed.

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