Abstract
For pt. I, see ibid., vol. 26, p. 2137-51 (1993b). Single electron capture in collisions of slow (keV amu-1) He2+ ions with aligned Li*(2p) atoms has been investigated by means of translational energy spectroscopy. A single mode cw dye laser beam has been modified by using an electro-optical modulator in order to pump both hyperfine ground states of Li simultaneously, thus maximizing the fraction of excited target atoms. Cross sections for electron capture from Li(2s), Li*(2p Sigma ) and Li*(2p Pi ) initial states into He+(n = 3 4, 5) final states have been determined for different impact energies and compared with 68-state atomic orbital (AO) close coupling calculations.
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