Recombination of H-3(+) ions in the afterglow of a He-Ar-H-2 plasma

    Authors

    J. Glosik; I. Korolov; R. Plasil; O. Novotny; T. Kotrik; P. Hlavenka; J. Varju; I. A. Mikhailov; V. Kokoouline;C. H. Greene

    Comments

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    Abbreviated Journal Title

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

    Keywords

    DISSOCIATIVE RECOMBINATION; ELECTRON-IMPACT; INTERSTELLAR; SPECTROSCOPY; TEMPERATURE; DEPENDENCE; COLLISIONS; PRESSURE; D-3(+); HCO+; Optics; Physics, Atomic, Molecular & Chemical

    Abstract

    Recombination of H-3(+) with electrons is studied in a low-temperature plasma containing He, H-2 and Ar at different He and H-2 densities. The effective plasma recombination rate is driven by binary, H-3(+) + e(-), and ternary, H-3(+) + e(-) + He, processes with the rate coefficients 7.5 x 10(-8) cm(3) s(-1) and 2.8 x 10(-25) cm(6) s(-1) respectively at 260 K. We suggest that the ternary recombination involves formation of neutral highly excited Rydberg H-3 followed by an l-changing collision with He. The difference between recombination of para- and ortho-H-3(+) is discussed.

    Journal Title

    Journal of Physics B-Atomic Molecular and Optical Physics

    Volume

    41

    Issue/Number

    19

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    6

    WOS Identifier

    WOS:000259480900001

    ISSN

    0953-4075

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