Research Papers in Physics and Astronomy


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Published in Journal of Physics B: Atomic, Molecular and Optical Physics 31:11 (June 14, 1998) pp. L525–L531. Copyright © 1998 IOP Publishing Ltd. Used by permission.


Absolute triply differential (e, 2e) cross section measurements are presented for He at incident energies E0 = 32.6, 44.6, 64.6, and 104.6 eV with equal energy sharing and the θ12 = π configuration. Results of distorted partial-wave calculations agree with the measurements; those of convergent close-coupling calculations agree with the relative angular distributions, and with absolute values after rescaling by consideration of the singly differential cross section.

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