Dissociative ionization of H{sub 2}{sup +} by fast-electron impact: Use of a two-center continuum wave function

Journal Article · Thu Aug 01 00:00:00 EDT 1996 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.54.1473· OSTI ID:286627

Joulakian, B; Hanssen, J; Rivarola, R; Motassim, A ^[1]

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1. Institut de Physique, Laboratoire de Physique Moleculaire et des Collisions, Universite de Metz, Technopole 2000, 1 Rue Arago, 57078 Metz Cedex 3 (France)

The differential cross section of the dissociative ionization of H{sub 2}{sup +} by fast (2-keV) electron impact is determined theoretically using a two-center continuum wave function for the slow (50-eV) ejected electron satisfying the correct boundary conditions. The variation of the sevenfold differential cross section with the scattering angle for fixed molecular alignment shows diffraction patterns, which differ from those obtained by the multicenter atomic model of Messiah. The effect of the molecular alignment is studied for small, intermediate, and large scattering angles. This reveals preferential directions for the internuclear axis. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286627
• Journal Information: Physical Review A, Vol. 54, Issue 2; Other Information: PBD: Aug 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HYDROGEN IONS 2 PLUS
IONIZATION
DISSOCIATION
DIFFERENTIAL CROSS SECTIONS
KEV RANGE 01-10
ELECTRON-MOLECULE COLLISIONS
SCATTERING THEORY
DIATOMIC MOLECULES
HYDROGEN MOLECULES