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

Experimental evidence for the correlated two-electron one-photon transitions (1s(-2)→2s(-1)2p(-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-ele...

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Bibliographic Details
Published in:Physical review letters 2011-07, Vol.107 (5), p.053001-053001, Article 053001
Main Authors: Hoszowska, J, Dousse, J-Cl, Szlachetko, J, Kayser, Y, Cao, W, Jagodziński, P, Kavčič, M, Nowak, S H
Format: Article
Language:English
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Summary:Experimental evidence for the correlated two-electron one-photon transitions (1s(-2)→2s(-1)2p(-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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.107.053001