Application of exterior complex scaling to positron-hydrogencollisions including rearrangement
Journal Article
·
· PhysicalReview A
OSTI ID:929504
The first application of an exterior complex scaling method to an atomic scattering problem with distinct rearrangement channels is reported. Calculations are performed for positron-hydrogen collisions in an s-wave model employing an electron-positron potential of V{sub 12} = -(8+(r{sub 1}-r{sub 2}){sup 2}){sup 1/2}, using the time-independent propagating exterior complex scaling (PECS) method. This potential has the correct long-range Coulomb tail of the full problem and the results demonstrate that ECS-based methods can accurately calculate scattering, ionization and positronium formation cross sections in this three-body rearrangement collision.
- Research Organization:
- COLLABORATION - MurdochU./Australia
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 929504
- Report Number(s):
- LBNL-63759; PLRAAN; R&D Project: 409601; BnR: KC0301030; TRN: US0803601
- Journal Information:
- PhysicalReview A, Vol. 77; Related Information: Journal Publication Date: 2008; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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