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Sidan uppdaterades: 2012-09-11 15:12
| Författare |
T. Marchenko L. Inhester G. Goldsztejn O. Travnikova L. Journel R. Guillemin I. Ismail Dimitris Koulentianos D. Ceolin R. Puttner M. N. Piancastelli M. Simon |
|---|---|
| Publicerad i | Physical Review A |
| Volym | 98 |
| Nummer/häfte | 6 |
| ISSN | 2469-9926 |
| Publiceringsår | 2018 |
| Publicerad vid |
Institutionen för fysik (GU) |
| Språk | en |
| Länkar |
dx.doi.org/10.1103/PhysRevA.98.0634... |
| Ämnesord | x-ray, photoelectron-spectroscopy, galaxies beamline, electron |
| Ämneskategorier | Atom- och molekylfysik och optik |
We present a combined experimental and theoretical study of the Auger-emission spectrum following double core ionization and excitation of gas-phase water molecules with hard-x-ray synchrotron radiation above the O K-2 threshold. We observe an indication of ultrafast proton motion occurring within the 1.5 fs lifetime of the double-core-hole (DCH) states in water. Furthermore, we have identified symmetric and antisymmetric dissociation modes characteristic for particular DCH states. Our results serve as a fundamental reference for state-of-the-art studies of DCH dynamic processes in liquid water both at synchrotron and free-electron-laser facilities.
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