STUDY OF HE-H COLLISIONS AT INTERMEDIATE KEV ENERGIES USING PSUEDO-ONE-ELECTRON AND 2-ELECTRON ATOMIC ORBITAL EXPANSIONS()

Authors
ERMOLAEV AM JACKSON D SHIMAKURA N WATANABE T
Citation
Am. Ermolaev et al., STUDY OF HE-H COLLISIONS AT INTERMEDIATE KEV ENERGIES USING PSUEDO-ONE-ELECTRON AND 2-ELECTRON ATOMIC ORBITAL EXPANSIONS(), Journal of physics. B, Atomic molecular and optical physics, 27(20), 1994, pp. 4991-5009
Citations number
62
Categorie Soggetti
Physics, Atomic, Molecular & Chemical",Optics
Journal title
Journal of physics. B, Atomic molecular and optical physics → ACNP
ISSN journal
09534075
Volume
27
Issue
20
Year of publication
1994
Pages
4991 - 5009
Database
ISI
SICI code
0953-4075(1994)27:20<4991:SOHCAI>2.0.ZU;2-O
Abstract
We report a theoretical study of excitation, charge transfer and ioniz ation in collisions between helium ions He+ and atomic hydrogen in the impact energy range between 2.5 and 250 keV amu(-1). The colliding sy stem was treated in a full two-electron formulation as well as in a ps eudo-one-electron approximation to the total Hamiltonian. The wavefunc tions were expanded in terms of two-centre atomic orbital bases within the semiclassical impact parameter close-coupling method. The results demonstrate advantages and limitations of either approach and allow a detailed comparison to be made with a wide range of available experim ental data.