H2S ultrafast dissociation probed by energy-selected resonant Auger electron-ion coincidence measurements

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We have studied the ultrafast dissociation of the H2S molecule upon S 2p(3/2)-> 6a(1) inner-shell excitation by combining high-resolution resonant Auger spectroscopy and energy-selected Auger electron-ion coincidence measurements. Auger final states have been correlated to the different fragmentation pathways (S+, HS+, and H2S+ ions). As an original result, we evidence a three-step mechanism to describe the resonant production of S+: the Auger recombination in the HS* fragment is followed for the A (3)Pi and c (1)Pi states by the S++H fragmentation mechanism. (c) 2007 American Institute of Physics.


  • K. Le Guen
  • C. Miron
  • Denis Céolin
  • R. Guillemin
  • N. Leclercq
  • M. Simon
  • P. Morin
  • A. Mocellin
  • O Bjorneholm
  • A. Naves de Brito
  • Stacey Ristinmaa Sörensen
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Article number114315
JournalJournal of Chemical Physics
Issue number11
Publication statusPublished - 2007
Publication categoryResearch