Coupled-Sturmian treatment of electron transfer and ionization in proton-neon collisions.

Abstract

Total cross sections are reported for electron transfer and ionization from the K shell of neon atoms by proton impact at proton energies from 250 to 1500 keV using a coupled-Sturmian-pseudostate approach. This approach was recently generalized by Winter [Phys. Rev. A 47, 264 (1993)] to quasi-one-electron systems using an analytic Hartree-Fock potential and applied to proton-carbon collisions. After a binding-energy correction is made to the single-particle energy phase, the calculated p-Ne cross sections for both ionization and electron transfer agree with the experimental values of Ro/dbro et al. [Phys. Rev. A 19, 1936 (1979)] within the range of basis sensitivity.