Journal article
H₂ Superexcited States: Experimental and Theoretical Characterization of their Competing Decay-Channel Fluorescence, Dissociation, and Ionization
Publication Details
Authors: | Glass-Maujean, M.; Jungen, C.; Schmoranzer, H.; Knie, A.; Haar, I.; Hentges, R.; Kielich, W.; Jänkälä, K.; Ehresmann, A. |
Publication year: | 2010 |
Journal: | Physical Review Letters |
Pages range : | 183002 |
Journal acronym: | PRL |
Volume number: | 104 |
ISSN: | 0031-9007 |
eISSN: | 1079-7114 |
DOI-Link der Erstveröffentlichung: |
Abstract
The absolute cross sections for the competing decay channels fluorescence, dissociation, and ionization of photoexcited long-lived superexcited H2 molecular levels have been measured from the ionization threshold of H2 up to the H(1s) + H(n=3) dissociation limit. The total and partial natural widths of these levels have been determined. Good agreement is found with first principles calculations carried out by multichannel quantum defect theory. The calculations reproduce the balance between the competing decay processes as well as its substantial level-to-level evolution.
The absolute cross sections for the competing decay channels fluorescence, dissociation, and ionization of photoexcited long-lived superexcited H2 molecular levels have been measured from the ionization threshold of H2 up to the H(1s) + H(n=3) dissociation limit. The total and partial natural widths of these levels have been determined. Good agreement is found with first principles calculations carried out by multichannel quantum defect theory. The calculations reproduce the balance between the competing decay processes as well as its substantial level-to-level evolution.
