Multielectron removal processes in He2++Nacollisions

S. Knoop*, V.G. Hasan, R.W.H. Morgenstern, R.A. Hoekstra

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

Multielectron processes have been studied by measuring the Na2+ and Na3+ recoil momenta resulting from 10 keV/amu He2++Na(3s) collisions. The Na2+ Q-value spectrum shows that transfer ionization dominates two-electron removal. Double capture populates mostly singly excited He(1snl) states. A smaller fraction of double capture leads to doubly excited He. Na3+ recoil ions are created by double capture into the He ground state and the emission of a third electron into the continuum. The Na3+ recoil ion is not left in its triplet ground state but in one of the low-lying excited singlet terms due to spin conservation.

Original languageEnglish
Article number062703
Number of pages4
JournalPhysical Review A
Volume73
Issue number6
DOIs
Publication statusPublished - Jun-2006

Keywords

  • MULTIPLE-ELECTRON-CAPTURE
  • MOMENTUM SPECTROSCOPY
  • SINGLE IONIZATION
  • CHARGED IONS
  • RECOIL-ION
  • COLLISIONS
  • EXCITATION
  • MAGNESIUM
  • PATHWAYS
  • EMISSION

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