Anion Formation Moderated by Post-sollision Interaction Following Core-Level Photoexcitation of CO
Document Type
Article
Publication Date
9-2002
Publication Title
Journal of Physics B: Atomic, Molecular and Optical Physics
Publisher
Institute of Physics Publishing
Volume
35
Issue
17
First page number:
L381
Last page number:
L386
Abstract
The photon-energy dependence of the oxygen-anion (O−) yield has been measured following photoexcitation of CO just above both the C and O K-shell ionization thresholds. The observed exponentially decaying yields above both edges are attributed to a post-collision interaction (PCI) between the emitted photoelectron and the CO molecule. Using a modified semi-classical atomic model, the near-threshold spectra can be reproduced if an energy shift is included. The shift in photon energy above the C K edge is greater than above the O K edge. The difference is attributed to a site-dependent PCI effect related to the polarity of the valence orbitals of the CO molecule.
Controlled Subject
Conduction electrons; Dipole moments; Nuclear physics; Photoionization
Disciplines
Atomic, Molecular and Optical Physics | Nuclear | Physical Chemistry
Language
English
Permissions
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Rights
IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/
Repository Citation
Hansen, D.,
Stolte, W. C.,
Hemmers, O.,
Guillemin, R.,
Lindle, D. W.
(2002).
Anion Formation Moderated by Post-sollision Interaction Following Core-Level Photoexcitation of CO.
Journal of Physics B: Atomic, Molecular and Optical Physics, 35(17),
L381-L386.