We have measured and calculated fully differential single-ionization cross sections for the complete three-dimensional space in 75 keV p+He collisions. Several signatures of the projectile-residual-target-ion interaction, some of which are not observable for fast projectiles and for electron impact, are revealed. Some of these features are qualitatively reproduced by our calculations if this interaction is accounted for. However, overall the agreement between theory and experiment is not very good. Thus, our understanding of effects caused by the projectile-residual-target-ion interaction appears to be rather incomplete.
M. Schulz et al., "Kinematically Complete Experiment on Single Ionization in 75-keV P+He Collisions," Physical Review A: Atomic, Molecular, and Optical Physics, American Physical Society (APS), Jan 2006.
The definitive version is available at http://dx.doi.org/10.1103/PhysRevA.73.062704
National Science Foundation (U.S.)
Keywords and Phrases
Distorted-Wave Impulse Approximation (DWIA); Electron impact ionization
Article - Journal
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