Precision measurement of the lifetime of the 1s2s 3S1 metastable level in heliumlike O6+

Details Precision measurement of the lifetime of the 1s2s 3S1 metastable level in heliumlike O6+ Precision measurement of the lifetime of the 1s2s 3S1 metastable level in heliumlike O6+

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998phrva..58..238c&link_type=abstract

Physical Review A, vol. 58, Issue 1, pp. 238-241

Physics

23

Oscillator Strengths, Lifetimes, Transition Moments, X-Ray And Gamma-Ray Measurements, Atomic And Molecular Data, Spectra, And Spectral Parameters

Scientific paper

The lifetime of the 1s2s 3S1 level of the He-like O6+ ion has been measured using the Electron Beam Ion Trap in the magnetic trapping mode. A value of 956+5-4 μs is found, which corresponds to a radiative transition rate of 1046+4-5 s-1 for the magnetic dipole transition to the 1s2 1S0 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.

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