High spin states in39K
- 1 August 1975
- journal article
- Published by IOP Publishing in Journal of Physics G: Nuclear Physics
- Vol. 1 (6) , L33-L39
- https://doi.org/10.1088/0305-4616/1/6/001
Abstract
The reaction 36Ar( alpha , p gamma )39K has been used to measure angular distributions, linear polarizations, mixing ratios, branching ratios and mean lifetimes for a number of high spin states in 39K. The results give the following unambiguous spin and parity assignments: ExJpi ; 2814 keV 7/2-; 3597 keV 9/2-; 3944 keV 11/2-; 5718 keV 9/2- and 6475 keV 11/2+. Using a solid 36Ar target and the Doppler shift attenuation method a mean lifetime of 250+or-65 fs has been measured for the 5718 keV level. There are several discrepancies between the present results and the results of previous work, particularly the heavy ion data published by the Brookhaven group.Keywords
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