https://doi.org/10.1140/epjd/s10053-021-00256-8
Regular Article – Atomic and Molecular Collisions
Positron-impact direct ionization of lithium, sodium and potassium atoms
1
Curtin Institute for Computation and Department of Physics and Astronomy, Curtin University, 6102, Perth, WA, Australia
2
Department of Physics and Astronomy, York University, M3J 1P3, Toronto, Canada
3
Laser Physics Centre, RSP, Australian National University, 0200, Canberra, ACT, Australia
Received:
31
May
2021
Accepted:
25
August
2021
Published online:
30
September
2021
The distorted-wave and convergent close-coupling approaches are applied to positron-impact direct ionization of Li, Na and K. We find reasonable agreement between different theoretical approaches at higher energies; however, some significant discrepancies are identified at low energies. Future experimental measurements are encouraged to check for accuracy of the presented theoretical predictions.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021
