Breaking a tetrahedral molecular ion with electrons: study of NH4+

    Authors

    N. Douguet; V. Kokoouline;A. E. Orel

    Comments

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    Abbreviated Journal Title

    J. Phys. B-At. Mol. Opt. Phys.

    Keywords

    GAUSSIAN-BASIS SETS; DISSOCIATIVE RECOMBINATION; RYDBERG; ATOMS; Optics; Physics, Atomic, Molecular & Chemical

    Abstract

    We apply a general theoretical model to study the dissociative recombination of the polyatomic ion NH4+. The high symmetry of the molecule, represented by the tetrahedral group, leads to complex vibronic couplings responsible for dissociative recombination. By applying multi-channel quantum defect theory and using symmetry considerations, we treat the doubly and triply degenerate modes and electronic states of NH4+ to calculate a theoretical cross section. The cross section agrees well with existing experimental data.

    Journal Title

    Journal of Physics B-Atomic Molecular and Optical Physics

    Volume

    45

    Issue/Number

    5

    Publication Date

    1-1-2012

    Document Type

    Article

    Language

    English

    First Page

    6

    WOS Identifier

    WOS:000300707800001

    ISSN

    0953-4075

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