Convergent close-coupling approach to antiproton and proton collisions with atomic and molecular targets

Abstract

A semi-classical single-centre convergent close-coupling method for describing antiproton collisions with atomic and molecular targets has been developed. Excitation and ionisation of noble-gas atoms, molecular hydrogen and water molecule by antiproton impact have been investigated. In addition, a semi-classical two-centre convergent close-coupling method has been developed to study collisions of protons with atomic hydrogen including electron capture into bound and continuum states of the projectile. Calculated cross sections are in good agreement with experimental data.