Single photon simultaneous K-shell ionization and K-shell excitation. I. Theoretical model applied to the interpretation of experimental results on H{sub 2}O
Journal Article
·
· Journal of Chemical Physics
- Laboratoire de Chimie Physique-Matière et Rayonnement, UMR 7614, Sorbonne Université, UPMC University Paris 6, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05 (France)
- Jozef Stefan Institute, P.O. Box 3000, SI-1001 Ljubljana (Slovenia)
- Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551 (Japan)
- Department of Environmental Science, Niigata University, Niigata 950-2181 (Japan)
- Institute of Materials Structure Science, Photon Factory, Tsukuba, Ibaraki 305-0801 (Japan)
We present in detail a theoretical model that provides absolute cross sections for simultaneous core-ionization core-excitation (K{sup −2}V ) and compare its predictions with experimental results obtained on the water molecule after photoionization by synchrotron radiation. Two resonances of different symmetries are assigned in the main K{sup −2}V peak and comparable contributions from monopolar (direct shake-up) and dipolar (conjugate shake-up) core-valence excitations are identified. The main peak is observed with a much greater width than the total experimental resolution. This broadening is the signature of nuclear dynamics.
- OSTI ID:
- 22415459
- Journal Information:
- Journal of Chemical Physics, Vol. 142, Issue 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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