Oscillatory patterns in angular differential ion-atom charge exchange cross sections: The role of electron saddle swaps

S. Otranto, I. Blank, R. E. Olson, R. Hoekstra

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    1 Citation (Scopus)

    Abstract

    In this work, we have performed an experimental/theoretical study of state selective charge exchange cross sections in 1-10 keV/amu Ne8++Na(3s) collisions. Theoretical calculations provided by the classical trajectory Monte Carlo method (CTMC) are contrasted to data obtained at KVI by means of the magneto-optical trap recoil-ion momentum spectroscopy technique (MOTRIMS). We find that for electron capture to n-10, a two-step mechanism which involves an initial electronic excitation followed by electron capture at a later stage of the collision applies. Oscillatory structures in the n-state selective capture cross sections and recoil ion transverse momentum distributions are present in the experimental data as well as in the theoretical results, and are ascribed to the number of swaps the electron undergoes across the potential energy saddle during the collision process.

    Original languageEnglish
    Title of host publicationApplication of Accelerators in Research and Industry - Twenty-Second International Conference
    PublisherAIP Conference proceedings
    Pages27-31
    Number of pages5
    ISBN (Print)9780735411487
    DOIs
    Publication statusPublished - 2013
    Event22nd International Conference on the Application of Accelerators in Research and Industry, CAARI 2012 - Fort Worth, TX, United States
    Duration: 5-Aug-201210-Aug-2012

    Publication series

    NameAIP Conference Proceedings
    Volume1525
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Conference

    Conference22nd International Conference on the Application of Accelerators in Research and Industry, CAARI 2012
    Country/TerritoryUnited States
    CityFort Worth, TX
    Period05/08/201210/08/2012

    Keywords

    • Charge exchange
    • Ion-atom collisions

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