We report a theoretical calculation for electron-impact ionization of atoms that includes short-range electron-atom effects for wave functions that satisfy the exact asymptotic boundary conditions. Results of this theory, which we label as the three-body distorted-wave Born approximation, are compared with experiment and other theories for ionization of hydrogen and helium for incident-electron energies from 4 to 18 times the ionization energy.
S. J. Jones et al., "Three-Body Distorted-Wave Born Approximation for Electron-Atom Ionization," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 48, no. 1, pp. R22-R25, American Physical Society (APS), Jul 1993.
The definitive version is available at http://dx.doi.org/10.1103/PhysRevA.48.R22
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© 1993 American Physical Society (APS), All rights reserved.