Single-centred calculations of excitation and electron removal in intermediate energy p + Li2+ collisions

Single-centred finite Hilbert basis set calculations, using bases with a substantial number of orbitals, have previously been shown to accurately reproduce excitation and electron removal cross sections for the single electron p + H(1s), p + H(n = 2), p + He+ (1s) and p + He+ (n 2) systems. The present paper extends the method's range of application to the p + Li2+(1s) and p + Li2+ (n = 2) systems. These cross sections are relevant to controlled nuclear fusion studies. We consider incident projectile energies ranging from 30 keV amu-1 to 600 keV amu-1. Cross sections for 1s→21', 31' and 41', 2s and 2p→ 31' and 41' excitation and for electron removal from the 1s, 2s, and 2p are presented and compared to other theoretical calculations. An interesting feature is exhibited by the 2s → 3p and 4p excitation cross sections. (Author)