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Neutral fragmentation of super excited oxygen molecules

Karawajczyk, Andrzej; Erman, Peter; Rachlew, Elisabeth; Rius i Riu, Jaume LU ; Stankiewicz, Marek; Yoshiki Franzén, Ken and Veseth, Leif (2000) In Physical Review A (Atomic, Molecular and Optical Physics) 61(3).
Abstract
The mechanisms of neutral dissociation of oxygen molecules in the excitation energy range 15–25 eV have been studied in a dispersed fluorescence experiment. By detecting the fluorescence from excited oxygen atoms, we find that neutral superexcited O2 states below 20 eV dissociate into O(g.s.)+O(3s,3p). At higher excitation energies (hν=20–25 eV) the curve-crossing interactions following excitations to members of the Rydberg c 4Σu- series also yield atoms in Rydberg states (nl,n>~4). The experimental data are analyzed on the ground of many-body perturbation theory, calculations which indicate the structure of the predissociating states converging to the experimentally observed ones.
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
61
issue
3
publisher
American Physical Society (APS)
ISSN
1050-2947
DOI
10.1103/PhysRevA.61.032718
language
English
LU publication?
no
id
625b4a33-8511-411c-bfa3-9a545ad0bd1b (old id 1029902)
date added to LUP
2008-02-18 12:10:54
date last changed
2016-06-29 09:16:46
@article{625b4a33-8511-411c-bfa3-9a545ad0bd1b,
  abstract     = {The mechanisms of neutral dissociation of oxygen molecules in the excitation energy range 15–25 eV have been studied in a dispersed fluorescence experiment. By detecting the fluorescence from excited oxygen atoms, we find that neutral superexcited O2 states below 20 eV dissociate into O(g.s.)+O(3s,3p). At higher excitation energies (hν=20–25 eV) the curve-crossing interactions following excitations to members of the Rydberg c 4Σu- series also yield atoms in Rydberg states (nl,n>~4). The experimental data are analyzed on the ground of many-body perturbation theory, calculations which indicate the structure of the predissociating states converging to the experimentally observed ones.},
  articleno    = {032718},
  author       = {Karawajczyk, Andrzej and Erman, Peter and Rachlew, Elisabeth and Rius i Riu, Jaume and Stankiewicz, Marek and Yoshiki Franzén, Ken and Veseth, Leif},
  issn         = {1050-2947},
  language     = {eng},
  number       = {3},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Neutral fragmentation of super excited oxygen molecules},
  url          = {http://dx.doi.org/10.1103/PhysRevA.61.032718},
  volume       = {61},
  year         = {2000},
}