Measurement of the spectral distribution for the two-photon decay of the 1s2s 1S0 level in heliumlike gold

H. W. Schäffer, P. H. Mokler, R. W. Dunford, C. Kozhuharov, A. Krämer, T. Ludziejewski, H. Th Prinz, P. Rymuza, L. Sarkadi, Th Stöhlker, P. Swiat, A. Warczak

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Abstract

A first measurement of the spectral distribution of the two-photon decay of the 1s2s 1S0 level in heliumlike gold is reported. This study extends our earlier work for heliumlike krypton and nickel to higher atomic numbers Z into the fully relativistic regime. The measured spectral shape of the two-photon decay differs from that observed at intermediate Z but is in agreement with the results of a recent fully relativistic calculation of Derevianko and Johnson.

Original languageEnglish
Pages (from-to)469-471
Number of pages3
JournalPhysica Scripta T
Volume80
Issue numberB
Publication statusPublished - Dec 1 1999

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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    Schäffer, H. W., Mokler, P. H., Dunford, R. W., Kozhuharov, C., Krämer, A., Ludziejewski, T., Prinz, H. T., Rymuza, P., Sarkadi, L., Stöhlker, T., Swiat, P., & Warczak, A. (1999). Measurement of the spectral distribution for the two-photon decay of the 1s2s 1S0 level in heliumlike gold. Physica Scripta T, 80(B), 469-471.