Abstract
Elastic scattering of positrons was investigated by hydrogen atoms and helium ions using a time-dependent coupled-channel (TDCC) method. The phase shifts were calculated with the time-energy Fourier transform of a wave packet. The low-lying S-wave resonances with a broad width predicted in variational eigenenergy calculations were examined for helium ions. The numerical accuracy of the TDCC method was demonstrated for S-, P-, and D- wave scatterings by hydrogen atoms.
| Original language | English |
|---|---|
| Article number | 052715 |
| Pages (from-to) | 527151-527156 |
| Number of pages | 6 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 68 |
| Issue number | 5 |
| Publication status | Published - 2003 Nov |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics