Electron capture to the continuum manifestation in fully differential cross sections for ion impact single ionization

M. F. Ciappina, O. A. Fojón, R. D. Rivarola

Research output: Contribution to journalArticlepeer-review

Abstract

We present theoretical calculations of single ionization of He atoms by protons and multiply charged ions. The kinematical conditions are deliberately chosen in such a way that the ejected electron velocity matches the projectile impact velocity. The computed fully differential cross sections (FDCS) in the scattering plane using the continuum-distorted wave-eikonal initial state show a distinct peaked structure for a polar electron emission angle θ k = 0°. This element is absent when a first order theory is employed. Consequently, we can argue that this peak is a clear manifestation of a three-body effect, not observed before in FDCS. We discuss a possible interpretation of this new feature.

Original languageEnglish
Article number085204
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume51
Issue number8
DOIs
StatePublished - 4 Apr 2018
Externally publishedYes

Keywords

  • distorted wave theories
  • ion collisions
  • two-center effects

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