Angular distribution of electrons following double photoionization
- 14 June 1993
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 26 (11) , 1679-1696
- https://doi.org/10.1088/0953-4075/26/11/005
Abstract
The angular distribution of continuum electrons following double photoionization of helium is calculated using a final-state wavefunction which accounts for Coulomb interactions between all three particles (nucleus and two electrons). Particularly in the case of almost equal energies of the two electrons, strong effects from electron repulsion on the angular distribution are predicted. Selection rules excluding certain momentum configurations are proposed. When only one electron is detected, agreement is obtained with measured values of the asymmetry parameter beta of its distribution.Keywords
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