H2+ formation from H2O+ mediated by the core-excitation-induced nuclear motion in H2O

A. Hiraya, K. Nobusada, M. Simon, K. Okada, T. Tokushima, Y. Senba, H. Yoshida, K. Kamimori, H. Okumura, Y. Shimizu, A. L. Thomas, P. Millie, I. Koyano, K. Ueda

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Abstract

A dissociation channel mediated by the vibrational motion in the excited states of molecules of water was observed. H2+ formation via the core excitation of H 2O was observed as a function of vibrational quantum numbers. Results showed that excitation of water caused the bending motion mixed with the symmetrical stretching motion. H2+ fortmation along the final states increased linearly with the vibrational energy stored in the core-excited state. Ab inito calculations indicated a key role of nuclear motion before Auger decay in hydrogen ion formation.

Original languageEnglish
Article number042705
Pages (from-to)427051-427055
Number of pages5
JournalPhysical Review A. Atomic, Molecular, and Optical Physics
Volume63
Issue number4
Publication statusPublished - 2001 Apr 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Hiraya, A., Nobusada, K., Simon, M., Okada, K., Tokushima, T., Senba, Y., Yoshida, H., Kamimori, K., Okumura, H., Shimizu, Y., Thomas, A. L., Millie, P., Koyano, I., & Ueda, K. (2001). H2+ formation from H2O+ mediated by the core-excitation-induced nuclear motion in H2O. Physical Review A. Atomic, Molecular, and Optical Physics, 63(4), 427051-427055. [042705].