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Negative-Ion/Positive-Ion Coincidence Yields of Core-Excited Water

På svenska

Author

  • Christian Stråhlman
  • Antti Kivimäki
  • Robert Richter
  • Rami Sankari

Summary, in English

We report yields of mass-resolved negative ions and positive ions measured in coincidence after core-excitation of water molecules. The analysis of negative-ion/positive-ion and negative-ion/positive-ion/positive-ion coincidence events provides new information on pathways leading to negative ion production, enhancing the present understanding of the dissociation processes of the water molecule. Dissociation following (resonant) Auger decay dominates negative ion production, but radiative decay is shown to contribute above the O 1s ionization threshold. A peak in the H-/O+ yield above the O 1s threshold is attributed to decay from doubly excited states.

Department/s

Publishing year

2016-07-21

Language

English

Pages

6389-6393

Publication/Series

The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory

Volume

120

Issue

32

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1520-5215