Precision measurement of the lifetime of the 1s2sthinsp{sup 3}S{sub 1} metastable level in heliumlike O{sup 6+}
- Department of Physics and Space Technology, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
- Department of Physics and Columbia Astrophysics Laboratory, Columbia University, New York, New York 10025 (United States)
The lifetime of the 1s2sthinsp{sup 3}S{sub 1} level of the He-like O{sup 6+} ion has been measured using the Electron Beam Ion Trap in the magnetic trapping mode. A value of 956{sub {minus}4}{sup +5} {mu}s is found, which corresponds to a radiative transition rate of 1046{sub {minus}5}{sup +4} s{sup {minus}1} for the magnetic dipole transition to the 1s{sup 2}thinsp{sup 1}S{sub 0} ground state. This value is in excellent agreement with recent theoretical predictions and distinguishes among different treatments of negative energy states and correlation in multiconfiguration Dirac-Fock calculations. {copyright} {ital 1998} {ital The American Physical Society}
- OSTI ID:
- 638776
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 58; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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