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  • Quantum-Mechanical Calculations of Cross Sections for Electron Collisions With Atoms and Molecules

    Author(s)
    Bartschat, Klaus
    Tennyson, Jonathan
    Zatsarinny, Oleg
    Griffith University Author(s)
    Bartschat, Klaus
    Year published
    2017
    Metadata
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    Abstract
    An overview of quantum-mechanical methods to generate cross-section data for electron collisions with atoms and molecules is presented. Particular emphasis is placed on the time-independent close-coupling approach, since it is particularly suitable for low-energy collisions and also allows for systematic improvements as well as uncertainty estimates. The basic ideas are illustrated with examples for electron collisions with argon atoms and methane. For many atomic systems, such as e-Ar collisions, highly reliable cross sections can now be computed with quantified uncertainties. On the other hand, while electron collision ...
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    An overview of quantum-mechanical methods to generate cross-section data for electron collisions with atoms and molecules is presented. Particular emphasis is placed on the time-independent close-coupling approach, since it is particularly suitable for low-energy collisions and also allows for systematic improvements as well as uncertainty estimates. The basic ideas are illustrated with examples for electron collisions with argon atoms and methane. For many atomic systems, such as e-Ar collisions, highly reliable cross sections can now be computed with quantified uncertainties. On the other hand, while electron collision calculations with molecules do provide key input data for plasma models, the methods, and computer codes presently used require further development to make these inputs robust.
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    Journal Title
    Plasma Processors and Polymers
    Volume
    14
    Issue
    1-2
    DOI
    https://doi.org/10.1002/ppap.201600093
    Subject
    Atomic, molecular and optical physics
    Physical chemistry
    Materials engineering
    Science & Technology
    Physical Sciences
    Physics, Applied
    Physics, Fluids & Plasmas
    Physics, Condensed Matter
    Publication URI
    http://hdl.handle.net/10072/409461
    Collection
    • Journal articles

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