Three-body neutral dissociations of a multiply excited water molecule around the double ionization potential

Takeshi Odagiri, Motoyoshi Nakano, Takehiko Tanabe, Yoshiaki Kumagai, Isao H. Suzuki, Masashi Kitajima, Noriyuki Kouchi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The cross sections for emission of two fluorescence photons from a pair of excited fragments in photoexcitation of H 2O have been measured as a function of the incident photon energy using the photon-photon coincidence technique. The cross section increased in the range 30-45eV, i.e. in the vicinity of the double ionization potential of H 2O. The increase of the cross section was attributed to three-body neutral dissociations of a water molecule via multiply excited states: H 2O** → H(2p) + OH** → H(2p) + H(2p) + O( 3P). Some multiply excited states of H 2O were also found in the cross section curve around 65eV.

Original languageEnglish
Article number215204
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume45
Issue number21
DOIs
Publication statusPublished - 2012 Nov 24

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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