Triply Differential Single-Ionization Cross Sections in Fast Ion-Atom Collisions at Large Perturbation
We present experimental triply differential single-ionization cross sections for electrons emitted into the scattering plane in 3.6 MeV amu-1 Au53+ + He collisions, i.e. for a large perturbation. The data show that the post-collision interaction between the scattered projectile and the ionized electron strongly affects the recoil peak, but it influences the binary peak rather weakly. Surprisingly, the continuum distorted wave-eikonal initial state model, which describes differential electron spectra very well, fails to reproduce our data even qualitatively. Most notably, it does not show a recoil peak.
M. Schulz et al., "Triply Differential Single-Ionization Cross Sections in Fast Ion-Atom Collisions at Large Perturbation," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 35, no. 7, pp. L161-L166, Institute of Physics - IOP Publishing, Mar 2002.
The definitive version is available at http://dx.doi.org/10.1088/0953-4075/35/7/104
Keywords and Phrases
Approximation theory; Atoms; Electron emission; Electron scattering; Perturbation techniques; Positive ions; Single-ionization; Ionization
International Standard Serial Number (ISSN)
Article - Journal
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