A STUDY OF THE 2-STEP MECHANISM IN THE DOUBLE-IONIZATION OF HELIUM BYFAST ELECTRONS

Authors
ELMKHANTER R DALCAPPELLO C
Citation
R. Elmkhanter et C. Dalcappello, A STUDY OF THE 2-STEP MECHANISM IN THE DOUBLE-IONIZATION OF HELIUM BYFAST ELECTRONS, Journal of physics. B, Atomic molecular and optical physics, 31(2), 1998, pp. 301-312
Citations number
17
Categorie Soggetti
Physics, Atomic, Molecular & Chemical",Optics
Journal title
Journal of physics. B, Atomic molecular and optical physics → ACNP
ISSN journal
09534075
Volume
31
Issue
2
Year of publication
1998
Pages
301 - 312
Database
ISI
SICI code
0953-4075(1998)31:2<301:ASOT2M>2.0.ZU;2-6
Abstract
In view of recent experiments it can be suggested that the two-step pr ocess is not negligible even at high impact energy. An ab initio calcu lation has been performed on the basis of the second Born approximatio n using different correlated wavefunctions for the initial bound state . This calculation also shows that the contribution of the two-step pr ocess must be included at any impact energy.