Radiative lifetimes of the first P322 state of Mgu, Cau, Znu, Sru, Cdu, and Bau are reported as measured by the Hanle effect in a fast-flowing helium afterglow. They are, respectively, 3.65(0.12), 6.61(0.30), 2.4(0.3), 6.64(0.10), 2.86(0.25), 6.78(0.40) in units of 10-9 sec. The ions in the afterglow are created by Penning ionization of the neutral metal atoms, thus providing a steady-state, field-free region for observation. Comparisons are made with measurements by other methods, and discrepancies are discussed. © 1976 The American Physical Society.
F. H. Rambow and L. D. Schearer, "Radiative Lifetimes Of Some Group II Ions By The Hanle Effect In A Fast-flowing Helium Afterglow," Physical Review A, vol. 14, no. 5, pp. 1735 - 1738, American Physical Society, Jan 1976.
The definitive version is available at https://doi.org/10.1103/PhysRevA.14.1735
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01 Jan 1976