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Neutral fragmentation of super excited oxygen molecules

In English

Författare

  • Andrzej Karawajczyk
  • Peter Erman
  • Elisabeth Rachlew
  • Jaume Rius i Riu
  • Marek Stankiewicz
  • Ken Yoshiki Franzén
  • Leif Veseth

Summary, in English

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.

Publiceringsår

2000

Språk

Engelska

Publikation/Tidskrift/Serie

Physical Review A (Atomic, Molecular and Optical Physics)

Volym

61

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

American Physical Society

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1050-2947