Excitation of highly excited hydrogenic ions and atoms by charged particles. II
- 1 July 1971
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 4 (7) , 918-931
- https://doi.org/10.1088/0022-3700/4/7/006
Abstract
For pt. I see abstr. A66822 of 1970. Heisenberg's form of the correspondence principle is used to study the excitation of hydrogen atoms and hydrogen-like ions by incident electrons or by incident ions. Using this correspondence principle and a generalization it is shown that there are at least four distinct ranges of the incident energy, in each of which the cross section has a different functional form. Classical perturbation theory, quantal perturbation theory (first Born) and the sudden approximation are compared, and regions of validity obtained.Keywords
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