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

Large-basis single-centred expansion calculations have been previously shown to yield accurate cross sections for collisions between protons and ground state hydrogen atoms. In the present paper the method is extended to p + H(n = 2) collisions. Cross sections for 2s and 2p → 3l' and 4l' excitation and for electron removal from 2s and 2p are presented and compared to other theoretical calculations. (author)