Origin of structures in the low-energy single-electron continuum in calculations for ion collisions from argon - art. no. 022702

Citation
L. Gulyas et al., Origin of structures in the low-energy single-electron continuum in calculations for ion collisions from argon - art. no. 022702, PHYS REV A, 6202(2), 2000, pp. 2702
Citations number
19
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
1050-2947 → ACNP
Volume
6202
Issue
2
Year of publication
2000
Database
ISI
SICI code
1050-2947(200008)6202:2<2702:OOSITL>2.0.ZU;2-1
Abstract
Doubly differential cross sections for inclusive single-electron emission i n 3.6 MeV/amu AU(53+) + Ar collisions are calculated in the continuum disto rted wave with eikonal initial-state approximation. Previously observed str uctures in the low-energy continuum are traced back to a known deficiency o f the Hartree-Fock-Slater target potential that has been used in the work [ R. Moshammer et al., Phys. Rev. Lett. 83, 4721 (1999)]. The structures do n ot occur, if the argon atom is described in terms of the optimized potentia l method, in which the electronic exchange interaction is treated exactly.