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Threshold Electron-impact ionization mechanism for hydrogen atoms

Williams, J., Bartlett, P. and Stelbovics, A. (2006) Threshold Electron-impact ionization mechanism for hydrogen atoms. Physical Review Letters, 96 (12).

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The near-threshold evolution of electron-impact ionization of hydrogen is revealed with measurements of the angular and energy correlations of the outgoing electrons down to 0.05 eV. The single-, double-, and triple-differential cross sections in the perpendicular plane are measured simultaneously using a dual wedge-and-strip detector on a single-toroidal energy analyzer, avoiding many experimental problems. The experimental and calculated data are in excellent agreement, within the experimental precision of 10%, and provide further evidence that the accurate solution of the Schrodinger equation provides a complete description of the reaction dynamics of near-threshold ionization.

Item Type: Journal Article
Publisher: American Physical Society
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