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Coherent interference in the resonant dissociative electron attachment to carbon monoxide
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2013 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 88, no 1, 012708- p.Article in journal (Refereed) Published
Abstract [en]

Dissociative electron attachment to carbon monoxide, e(-) + CO -> C + O-, at 9.5, 10.0, and 10.6 eV is investigated by using the anion velocity time-sliced map imaging technique. The completely backward scattering distributions of the fast O- fragment are observed at 10.0 and 10.6 eV. The single electron-molecule resonance model fails in interpretation to these unusual angular distributions, while a quantum interference model including two (at 10.0 eV) or three (at 10.6 eV) dissociative outgoing waves is consequently proposed and provides the satisfying results about the experimental data fittings. Moreover, coherent interference among the (2)Pi, (2)Delta, and (2)Phi resonant states of CO- at 10.6 eV could be further established, based on the fact that the sum of the phase-shift fitting values equals pi rad.

Place, publisher, year, edition, pages
2013. Vol. 88, no 1, 012708- p.
Keyword [en]
Configuration-Interaction, Cross-Sections, Co, Scattering, Excitation
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URN: urn:nbn:se:kth:diva-125851DOI: 10.1103/PhysRevA.88.012708ISI: 000321837000013Scopus ID: 2-s2.0-84880579787OAI: oai:DiVA.org:kth-125851DiVA: diva2:641167
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QC 20130815

Available from: 2013-08-15 Created: 2013-08-15 Last updated: 2017-12-06Bibliographically approved

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Luo, Yi

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