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

doi:10.1088/0953-4075/45/21/215204

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

Division of Developmental Research in Education Programs

Research output: Contribution to journal › Article › peer-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 language	English
Article number	215204
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	45
Issue number	21
DOIs	https://doi.org/10.1088/0953-4075/45/21/215204
Publication status	Published - 2012 Nov 24

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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Three-body neutral dissociations of a multiply excited water molecule around the double ionization potential. / Odagiri, Takeshi; Nakano, Motoyoshi; Tanabe, Takehiko; Kumagai, Yoshiaki; Suzuki, Isao H.; Kitajima, Masashi; Kouchi, Noriyuki.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 45, No. 21, 215204, 24.11.2012.

Research output: Contribution to journal › Article › peer-review

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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.",

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AU - Odagiri, Takeshi

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AU - Tanabe, Takehiko

AU - Kumagai, Yoshiaki

AU - Suzuki, Isao H.

AU - Kitajima, Masashi

AU - Kouchi, Noriyuki

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

Abstract

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