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Title: Electronic quenching of O({sup 1}D) by Xe: Oscillations in the product angular distribution and their dependence on collision energy

The dynamics of the O({sup 1}D) + Xe electronic quenching reaction was investigated in a crossed beam experiment at four collision energies. Marked large-scale oscillations in the differential cross sections were observed for the inelastic scattering products, O({sup 3}P) and Xe. The shape and relative phases of the oscillatory structure depend strongly on collision energy. Comparison of the experimental results with time-independent scattering calculations shows qualitatively that this behavior is caused by Stueckelberg interferences, for which the quantum phases of the multiple reaction pathways accessible during electronic quenching constructively and destructively interfere.
Authors:
;  [1] ;  [2] ;  [3] ;  [3] ;  [4] ;  [1] ;  [4] ;  [5] ;  [6] ;  [6]
  1. Department of Chemistry, University of California, Berkeley, California 94720 (United States)
  2. Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218-2685 (United States)
  3. Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742-2021 (United States)
  4. (United States)
  5. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan (China)
  6. (China)
Publication Date:
OSTI Identifier:
22493490
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 143; Journal Issue: 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANGULAR DISTRIBUTION; ATOM COLLISIONS; ATOMIC BEAMS; COLLIDING BEAMS; COMPARATIVE EVALUATIONS; DIFFERENTIAL CROSS SECTIONS; ENERGY DEPENDENCE; INELASTIC SCATTERING; INTERFERENCE; OSCILLATIONS; OXYGEN; QUENCHING; XENON