First observation of two-electron one-photon transitions in single-photon K-Shell double ionization

Hoszowska, Joanna; Dousse, Jean-Claude; Szlachetko, Jakub; Kayser, Yves; Cao, Wei; Jagodziński, P.; Kavčič, Matjaz; Nowak, S. H.

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Journal article

First observation of two-electron one-photon transitions in single-photon K-Shell double ionization

Hoszowska, Joanna Department of Physics, University of Fribourg, Switzerland
Dousse, Jean-Claude Department of Physics, University of Fribourg, Switzerland
Szlachetko, Jakub European Synchrotron Radiation Facility (ESRF), Grenoble, France - Institute of Physics, Jan Kochanowski University, Kielce, Poland - Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
Kayser, Yves Department of Physics, University of Fribourg, Switzerland
Cao, Wei Department of Physics, University of Fribourg, Switzerland - Department of Chemistry, University of Saskatchewan, Saskatoon, Canada
Jagodziński, P. Institute of Physics, Jan Kochanowski University, Kielce, Poland
Kavčič, Matjaz J. Stefan Institute, Ljubljana, Slovenia
Nowak, S. H. Department of Physics, University of Fribourg, Switzerland

27.07.2011

Published in:

Physical Review Letters. - 2011, vol. 107, no. 5, p. 053001

English xperimental evidence for the correlated two-electron one-photon transitions (1s⁻²→2s⁻¹2p⁻¹) following single-photon K-shell double ionization is reported. The double K-shell vacancy states in solid Mg, Al, and Si were produced by means of monochromatized synchrotron radiation, and the two-electron one-photon radiative transitions were observed by using a wavelength dispersive spectrometer. The two-electron one-photon transition energies and the branching ratios of the radiative one-electron to two-electron transitions were determined and compared to available perturbation theory predictions and configuration interaction calculations.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

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