Abstract
The radiative lifetime of the 2s2 2p4 1S0 level in Ne2+ ions has been measured by time-resolved observations of one of the electric-dipole forbidden decay branches, the magnetic dipole (M1) transition to the 2s2 2p4 3P1 level, on ions circulating in a heavy-ion storage ring. The result, a lifetime of 213 ± 4 ms, agrees within the mutual 2σ errors with that of a recent measurement using a radiofrequency ion trap, but is expected to suffer less from possible systematic error. It also compares very well with two calculations that have been semiempirically corrected for experimental transition energies. PACS Nos.: 32.70Cs, 39.90+d, 31.50+w, 35.80B
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