(e, 2e) studies of H2in the intermediate energy regime

This is the authors' abstract. We don't add key points for this paper.

(e, 2e) studies have been conducted ionizing H 2 from the X 1 Σ + g state to the X 2 Σ + g H + 2 ground state. The electron energy ranged from 10 eV through to 40 eV above the ionization threshold for experiments performed in a coplanar symmetric geometry, with both scattered and ejected electrons sharing equal energy. Results are also presented for asymmetric scattering where one of the electrons carried 80 eV energy away from the interaction in a forward direction at an angle of 35° to the incident electron beam. These experiments were performed to test the hypothesis that the two nuclei in the molecule act as a ‘double scattering’ centre, with the possibility of producing Young's double-slit-type interference in the resulting differential cross section. New features are found in the ionization cross section for H 2 in a coplanar symmetric geometry; however it is unclear at present if these are due to Young's double-slit interference.