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Single photon simultaneous K-shell ionization and K-shell excitation. I. Theoretical model applied to the interpretation of experimental results on H2O.

Authors :
Carniato S
Selles P
Andric L
Palaudoux J
Penent F
Žitnik M
Bučar K
Nakano M
Hikosaka Y
Ito K
Lablanquie P
Source :
The Journal of chemical physics [J Chem Phys] 2015 Jan 07; Vol. 142 (1), pp. 014307.
Publication Year :
2015

Abstract

We present in detail a theoretical model that provides absolute cross sections for simultaneous core-ionization core-excitation (K(-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(-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.

Details

Language :
English
ISSN :
1089-7690
Volume :
142
Issue :
1
Database :
MEDLINE
Journal :
The Journal of chemical physics
Publication Type :
Academic Journal
Accession number :
25573561
Full Text :
https://doi.org/10.1063/1.4904273