The singlet and triplet cross sections and the asymmetry parameter for e-H and e-Li ionization have been calculated in a distorted-wave Born approximation for incident energies in the range 0.5 to 20 eV above the ionization threshold. The two final-state continuum electrons are assumed to share equal energy and to come out 180° apart. The variation with respect to the angle of scattering is found to be qualitatively very different in the two cases. It is found that, in the case of lithium, the 1D and 3F components in the scattering amplitude are quite significant even at very low energies.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
About this article
Cite this article
Gupta, S., Srivastava, M. Spin asymmetry in near threshold (e, 2e) process for lithium and hydrogen. Z Phys D - Atoms, Molecules and Clusters 37, 15–18 (1996). https://doi.org/10.1007/s004600050003