Multicenter character in single-electron emission from H2 molecules by ion impact

M. E. GALASSI, R. D. RIVAROLA Y P. D. FAINSTEIN

PHYSICAL REVIEW A - ATOMIC, MOLECULAR AND OPTICAL PHYSICS

The American Physical Society

Año: 2004 vol. 70 p. 327211 - 327219

1050-2947

Single ionization cross sections for heavy-ion impact on H2 are calculated by applying the continuumdistorted- wave–eikonal-initial-state model. We have used a representation of the bound-state initial wave function which takes into account the molecular character of the target. To describe the final continuum state we have used the two-effective-center approximation, previously employed with success to study electron capture from H2 by ion impact. Interference effects are also analyzed and the dependence of the oscillation frequency with the projectile velocity and ejection angle is presented. The importance of adequately describing the target as a molecule is emphasized.2 are calculated by applying the continuumdistorted- wave–eikonal-initial-state model. We have used a representation of the bound-state initial wave function which takes into account the molecular character of the target. To describe the final continuum state we have used the two-effective-center approximation, previously employed with success to study electron capture from H2 by ion impact. Interference effects are also analyzed and the dependence of the oscillation frequency with the projectile velocity and ejection angle is presented. The importance of adequately describing the target as a molecule is emphasized.2 by ion impact. Interference effects are also analyzed and the dependence of the oscillation frequency with the projectile velocity and ejection angle is presented. The importance of adequately describing the target as a molecule is emphasized.