Post-collision-interaction effects in the ionization of helium by fast electrons at small momentum transfer
- 1 March 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 33 (3) , 2103-2105
- https://doi.org/10.1103/physreva.33.2103
Abstract
Conspicuous effects from a weak post-collision interaction have been identified in triply differential cross sections for the ionization of helium by fast electrons at asymmetric kinematics. A classical correction to an accurate first Born approximation is in good agreement with experimental data, showing the important influence of correlation after the collision.Keywords
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