Measurement of the N+ 2s2p3 5So2 level lifetime using a heavy-ion storage ring
Abstract
The slow electric-dipole intercombination decay of the 2s2p3 5So2 level in the C-like ion N+, which appears in the auroral airglow spectrum, has been optically observed from ions circulating in a storage ring. A result of 5.88+/-0.03 ms was obtained for the natural lifetime of this level. This represents an improvement in precision by a factor of 10 compared to previous radio-frequency and electrostatic ion trap work and is in slight disagreement with the latest theoretical values.
- Publication:
-
Physical Review A
- Pub Date:
- December 1998
- DOI:
- 10.1103/PhysRevA.58.4449
- Bibcode:
- 1998PhRvA..58.4449T
- Keywords:
-
- 32.30.Jc;
- 32.70.Fw;
- 34.50.Fa;
- Visible and ultraviolet spectra;
- Absolute and relative intensities;
- Electronic excitation and ionization of atoms