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Angular distribution of different vibrational components of the and states reached after resonant Auger decay of core-excited : Experiment and theory
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10.1063/1.1850898
/content/aip/journal/jcp/122/8/10.1063/1.1850898
http://aip.metastore.ingenta.com/content/aip/journal/jcp/122/8/10.1063/1.1850898

Figures

Image of FIG. 1.
FIG. 1.

Absorption spectrum of measured in the partial electron yield mode below the O 1s ionization threshold. The dots indicate the photon energies at which resonant Auger spectra have been obtained.

Image of FIG. 2.
FIG. 2.

Resonant Auger spectra measured with horizontally (dotted line) and vertically (solid line) polarized radiation. The photon energy values correspond to the positions marked in Fig. 1.

Image of FIG. 3.
FIG. 3.

Off- resonance spectrum and on-resonance spectra obtained at photon energies corresponding to the top of the O , O intermediate states, respectively, with horizontal polarization (solid line) and vertical polarization (dotted line). The spectra have been normalized to the intensity of the first vibrational peak obtained for horizontal polarization.

Image of FIG. 4.
FIG. 4.

High-resolution resonant Auger spectrum of the state, obtained at a photon energy of 535.95 eV, corresponding to the maximum of the O resonance.

Image of FIG. 5.
FIG. 5.

Top: asymmetry parameter derived for the first four vibrational components A, B, C, and D of the state in the photon energy region including the O and O resonances. Bottom: resonant Auger spectrum for the state, showing the symbols used in the top part for the first four vibrational peaks.

Image of FIG. 6.
FIG. 6.

Top: asymmetry parameter derived for several portions of the spectral feature related to the state (see text) in the photon energy region of the O resonance. Bottom: resonant Auger spectrum for the state, showing the symbols used in the top part for the different portions of the peak.

Image of FIG. 7.
FIG. 7.

Results of the K-matrix calculations. The full line gives the photoabsorption cross section (arbitrary units), the dotted line gives the photoemission cross section (arbitrary units), and the heavy full line gives the parameter as a function of photon energy. In the different panels “p” stays for “positive,” “n” stays for “negative,” and “2” indicates a doubled value for the overlap between the vibrational wave functions of the resonant state and of the final state. The relative photon energy is defined taking the lowest-lying resonance as origin.

Image of FIG. 8.
FIG. 8.

Results of the K-matrix calculations extended to two resonant vibronic states. The full line gives the photoabsorption cross section (arbitrary units), the dotted line gives the photoemission cross section (arbitrary units), and the heavy full line gives the parameter as a function of photon energy. In the different panels again p stays for positive and n stays for negative value for the overlap between the vibrational wave functions of the resonant state and of the final state. The four graphs refer to the different sign combinations that can be realized for the two vibrational factors corresponding to the two resonant vibronic states. The relative photon energy is defined taking the lowest-lying resonance as origin.

Tables

Generic image for table
Table I.

Vibrational energies in the resonant Auger (participator) electron band of the final state.

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/content/aip/journal/jcp/122/8/10.1063/1.1850898
2005-02-15
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Angular distribution of different vibrational components of the X and B states reached after resonant Auger decay of core-excited H2O: Experiment and theory
http://aip.metastore.ingenta.com/content/aip/journal/jcp/122/8/10.1063/1.1850898
10.1063/1.1850898
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