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Natural Lifetimes and Hyperfine Structure for K 39 in the 5p^(2)P_(3/2) and 6p^(2)P_(3/2) Levels of the K I Spectrum by Resonance Scattering of Light
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- Svanberg, Sune (author)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
- (creator_code:org_t)
- IOP Publishing, 1971
- 1971
- English.
- In: Physica Scripta. - : IOP Publishing. - 0031-8949 .- 1402-4896. ; 4:6, s. 275-279
- Journal article (peer-reviewed)
Abstract
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- The hyperfine coupling constants and the natural radiative lifetimes of the 5 p 2 P 3/2 and 6 p 2 P 3/2 levels of K 39 were determined in a level crossing experiment on an enriched K 39 sample in a sealed-off resonance cell. The following results were obtained: ----- -- a (5 p 2 P 3/2 ) = 1.973 (12) MHz -- a (6 p 2 P 3/2 ) = 0.886 (8) MHz ----- -- b (5 p 2 P 3/2 ) = 0.870 (18) MHz -- b (6 p 2 P 3/2 ) = 0.370 (15) MHz ----- -- Ï(5 p 2 P 3/2 ) = 133 (3) ns -- Ï(6 p 2 P 3/2 ) = 310 (15) ns ----- Considering the influence of core polarization on the magnetic hyperfine interaction and applying a Sternheimer correction, fairly consistent values of the electric quadrupole moment Q are obtained from the first three levels of the np 2 P 3/2 sequence. We find Q (K 39 ) = +0.059 (6) barn.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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