The total elastic cross-sections of the collisions of positrons with various hydrogenlike targets (with nuclear charge Z=1, 2, 3, 4, 5 and 11) are determined at 13 values of the incident energy lying below 6.8 e V(the positronium formation threshold of e+-H scattering). The inelastic scattering of positrons by the same targets is investigated for the first time at energies above the positronium formation thresholds. Both scattering processes are treated using a coupled-static formalism and an iterative Green's function partial wave expansion technique. The resulting cross-sections demonstrate the stability of this technique and emphasize the importance of exploring the aspects of positron-ion collisions more fundamentally on both theoretical and experimental levels.
- Charge transfer
- Inelastic scattering of atoms and molecules
ASJC Scopus subject areas
- Physics and Astronomy(all)