Positron scattering from complex atoms and molecules of relevance to biological, fusion, and plasma research

Abstract

The single-centre convergent close-coupling theory and code were extended beyond quasi-one and -two electron systems to atoms with any number of electrons. Calculations were completed for carbon, oxygen, neon, argon, boron, and fluorine. A complex model potential, scaled to the CCC calculations, was utilised to address issues associated with single-centre expansions and to calculate ionisation cross sections. A modified independent atom model was used to calculate cross sections for molecular systems from the atomic results.