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Decay of a K-pi = 21/2(-), 17-ms isomer in Ta-185

Lane, Gregory; Dracoulis, George; Byrne, Aidan; Hughes, Richard; Watanabe, H; Kondev, Filip G; Chiara, C J; Carpenter, M P; Janssens, R V F; Lauritsen, T; Lister, C J; McCutchan, E A; Seweryniak, D; Zhu, S.; Chowdhury, P; Stefanescu, I.


High-spin states in the neutron-rich nucleus Ta185, populated in the decay of a long-lived, three-quasiparticle state, have been studied using deep-inelastic reactions with Xe136 ions and a W186 target. The lifetime of the isomer has been measured as 17(2) ms and the spin and parity determined to be Kπ=21/2-, leading to a π7/2+[404]ν3/2-[512]11/2+[615] configuration assignment. The isomer decays into the rotational band built upon the π9/2-[514] intrinsic state via K-forbidden transitions with...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Physical Review C: Nuclear Physics
DOI: 10.1103/PhysRevC.80.024321


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