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.
|Number of pages||3|
|Journal||Physica Scripta T|
|Publication status||Published - Dec 1 1999|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Mathematical Physics
- Condensed Matter Physics