We studied simultaneous electron ejection from both collision partners in 200-keV H-+He collisions in a kinematically complete experiment by measuring the fully momentum-analyzed recoil ions and both active electrons in coincidence. The data were analyzed in terms of Dalitz spectra, in which the momentum exchange between three particles is plotted simultaneously in a single spectrum. We found that the energy transfer occurs predominantly between the active electrons, but most of the momentum is exchanged in elastic scattering between the cores of the collision partners.
M. Schulz et al., "Multiple Scattering Mechanisms in Simultaneous Projectile-Electron and Target-Electron Ejection in H⁻ + He Collisions," Physical Review A: Atomic, Molecular, and Optical Physics, vol. 74, no. 4, pp. 042705-1-042705-6, American Physical Society (APS), Oct 2006.
The definitive version is available at http://dx.doi.org/10.1103/PhysRevA.74.042705
German Research Association
Gesellschaft fur Schwerionenforschung
National Science Foundation (U.S.)
Keywords and Phrases
Elastic scattering; Target-electron ejection; Data reduction; Electrons; Energy transfer; Scattering; Collisions (Nuclear physics); Electron-ion collisions; Multiple scattering (Physics)
International Standard Serial Number (ISSN)
Article - Journal
© 2006 American Physical Society (APS), All rights reserved.