Open AccessA THEORETICAL STUDY ON Li+(1s2)(e,2e) REACTIONS IN COPLANAR DOUBLY SYMMETRIC GEOMETRY
Author(s) -
Jia Xiang-Fu,
Yang Wei
Publication year - 1999
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.48.628
Subject(s) - physics , ionization , atomic physics , coulomb , electron , scattering , ion , amplitude , field (mathematics) , work (physics) , electron scattering , geometry , quantum mechanics , mathematics , pure mathematics
Based on the Berakdar theory,this work investigates theoretically the triply differential cross sections for electron impact ionization of Li+(1s2) at an energy of 100eV in coplanar doubly symmetric geometry,i.e.,equal energies and equal emission angles for the two electrons in the final state.Dominant ionization mechanisms are identified and the contribution of different scattering amplitudes and the major role of initial channel Coulomb field are discussed.It turns out that the cross section in doubly symmetric geometry is strongly influenced by the interference of these amplitudes and the initial channel Coulomb field.