Ionization of excited hydrogen and ground state neon by electron impact
- 1 October 1974
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 7 (14) , 1875-1890
- https://doi.org/10.1088/0022-3700/7/14/011
Abstract
The five-fold differential cross section sigma nlm(5) for ionization of the state mod nlm> is calculated for hydrogen sigma nlm(5) that the number of minima of the angular correlation in the forward direction increases with the principal quantum number. The cross sections sigma nl(5)= Sigma m sigma nlm(5) have at the direction of the momentum transfer a maximum for l=0 and a distinct minimum for l=1, besides extreme values at other angles. For neon differential cross sections of lower order and the total cross section sigma (0) have been calculated by integrating over the solid angles of both electrons and over their energy distribution. It is found that sigma (0) lies below the experimental results probably because no resonance or autoionization effects are included.Keywords
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