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Candidates for low-lying mixed-symmetry states in 140 Nd

Williams, Elizabeth; Casperson, R.J.; Werner, V.; Ai, H.; Boutachkov, P.; Chamberlain, M.; Gurdal, G.; Heinz, A.; McCutchan, E.A.; Qian, J.; Winkler, R.


The nucleus Nd140 was investigated using ?-? coincidence and angular-correlation techniques following the ?/?+ decay of Sm140 and Pr140. Spins, ?-decay intensities, and E2/M1 mixing ratios were extracted from the data. The 23+ and 24+ states were identified as possible mixed-symmetry states, based on mixing ratios obtained for observed decays to the 21+ state. The relationship between the decay pattern of these two candidate states and underlying shell structure in this mass region is...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Physical Review C: Nuclear Physics
DOI: 10.1103/PhysRevC.80.054309


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