Single-centred calculations of excitation and electron removal in intermediate energy p + H(n = 2) collisions

Single-centred finite Hilbert basis set calculations, using bases with a substantial number of orbitals, have been shown to accurately reproduce excitation and electron removal cross sections for the p+H(1s) and p+H(n=2) systems. The present paper extends the method to the p+He+(1s) and p+He+(n=2) collision systems at incident projectile energies of 25 keV and above. Cross sections for 1s to 2l', 3l' and 4l', 2s and 2p to 3l' and 4l' excitation and for electron removal from the 1s, 2s and 2p are presented and compared to experiment and to other theoretical calculations.

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