CONTINUUM-DISTORTED-WAVE - FINAL-STATE APPROXIMATION IN POSITRON-HYDROGENIC ATOM (ION) COLLISIONS WITH POSITRONIUM FORMATION

Authors
FOJON OA RIVAROLA RD GAYET R HANSSEN J HERVIEUX PA
Citation
Oa. Fojon et al., CONTINUUM-DISTORTED-WAVE - FINAL-STATE APPROXIMATION IN POSITRON-HYDROGENIC ATOM (ION) COLLISIONS WITH POSITRONIUM FORMATION, Physical review. A, 54(6), 1996, pp. 4923-4930
Citations number
18
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
54
Issue
6
Year of publication
1996
Pages
4923 - 4930
Database
ISI
SICI code
1050-2947(1996)54:6<4923:C-FAIP>2.0.ZU;2-U
Abstract
We study theoretically the formation of positronium atoms through elec tron capture in collisions of positrons impacting on hydrogenlike targ ets such as He+, Li2+, and Be3+. We obtain the scattering amplitude of the charge-exchange process by using a distorted-wave model derived f rom the first order of a Dodd and Greider's expansion. We compute diff erential and total cross sections by using a partial-wave technique.