- Conference date: 28-30 July 2005
- Location: Buenos Aires (Argentina)
A clear signature in the form of sharp features in the singly differential cross section for the (e,2e) process due to excitation of autoionizing states of helium is demonstrated in calculations in the S‐wave limit. All three active electrons are treated on the same footing in calculations using the exterior complex scaling (ECS) method that applies the correct outgoing boundary conditions for all the breakup channels in the problem. At the energies treated here, within a few eV of the threshold for the excitation‐autoionization process, the effects of post‐collision interactions are clearly demonstrated. It is suggested that such behavior should be seen generally in (e,2e) experiments on atoms that measure the single differential cross section.
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