We have investigated the electron impact single ionization of the hydrogen molecule, with fully determined kinematics. The experimental and theoretical results are compared with He ionization under the same conditions. The results indicate that the ejected electron angular distribution for H2 is modified due to Young-type interference between ionization amplitudes for scattering from the two centers in the hydrogen molecule. The observable result is a suppression of the backward scattering (recoil) peak compared with the binary peak.
D. S. Milne-Brownlie et al., "Young-Type Interference in (e, 2e) Ionization of H₂," Physical Review Letters, vol. 96, no. 23, American Physical Society (APS), Jun 2006.
The definitive version is available at http://dx.doi.org/10.1103/PhysRevLett.96.233201
Keywords and Phrases
Backscattering; Helium; Hydrogen; Molecular dynamics; Reaction kinetics; Wave interference; Backward scattering; Electron impact; Ionization amplitudes; Young type interference; Ionization of gases
International Standard Serial Number (ISSN)
Article - Journal
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