“…For intermediate energy range (~100 eV/u < E < ~100 keV/u) collisions,AOCC calculations have been performed for a large number of systems and charge transfer cross section have been obtained for Ne q+ -H (q = 6 -10) [7], Be 4+ -H (1s, 2s, 2p)[in preparation], C 4+ -He [8], Li 3+ -Li (1s 2 2s, 1s 2 2p) [9], He + -He(1s 2 ;1s2l 1,3 L) [10][11][12][13], H + -Be + [14], H + + H − [15], N 5+ -H2 [16], H + -Mg [17][18][19] etc., excitation cross sections have been obtained for Be 4+ -H (1s, 2s, 2p) [in preparation] and Be 3+ -Li [20], and ionization cross sections have been obtained for Be 4+ -H (1s, 2s, 2p) [in preparation] and antiproton -helium [21]. For high charged ions or excited state target, very large basis sets are needed to obtain convergent results; and for excitation and ionization processes, even larger basis sets are needed for convergence.…”