Indirect predissociation of highly excited singlet states of N2

A. N. Heays*, B. R. Lewis, S. T. Gibson, G. Stark, N. De Oliveira

*Corresponding author for this work

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

    6 Citations (Scopus)

    Abstract

    Indirect predissociation of the b′ 1Σu+(v = 20) level of N2 is studied experimentally by vacuum-ultraviolet photoabsorption employing synchrotron radiation and a Fourier-transform spectrometer, and interpreted with the aid of a quantitative model of interacting 1Πu and 1Σu+, bound and unbound states which solves the coupled Schrödinger equation. An observed rotationally-localised peak in the b′(20) predissociation linewidths is identified by the model as arising from an interaction with a strongly predissociated and unobserved bound level of the mixed c3 1Πu and o3 1Πu Rydberg states. This leads to the dissociation of b′(20) into the continuum of the b 1Πu valence state. The residual observed predissociation of b′ 1Σu+(v = 20) apart from the rotationally-localised peak cannot be explained by a mechanism of 1Πu and 1Σu+ interaction, and must involve states of higher multiplicity.

    Original languageEnglish
    Title of host publicationDR 2013 - 9th International Conference on Dissociative Recombination
    Subtitle of host publicationTheory, Experiment, and Applications
    EditorsOlivier Dulieu, Olivier Dulieu, Jacques Robert, Jacques Robert, Ioan F. Schneider, Ioan F. Schneider
    PublisherEDP Sciences
    ISBN (Electronic)9782759817320
    DOIs
    Publication statusPublished - 29 Jan 2015
    Event9th International Conference on Dissociative Recombination: Theory, Experiment, and Applications, DR 2013 - Paris, France
    Duration: 7 Jul 201312 Jul 2013

    Publication series

    NameEPJ Web of Conferences
    Volume84
    ISSN (Print)2101-6275
    ISSN (Electronic)2100-014X

    Conference

    Conference9th International Conference on Dissociative Recombination: Theory, Experiment, and Applications, DR 2013
    Country/TerritoryFrance
    CityParis
    Period7/07/1312/07/13

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