Lyman α and Lyman β from excited He+ formed in 60–4000-eV (c.m.) He2+-Li collisions have been observed using a crossed-beam apparatus. The data show that He+(3l) is the predominant reaction product. The maximum measured cross section for production of He+(3l) is ∼11 Å2 at about 1300 eV relative energy.
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Barrett et al. (1980) studied this question.
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