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First experimental test of X(5) critical-point symmetry in the A ∼ 130 mass region: Low-spin states and the collective structure of 130 Ce

Mertz, A.F.; McCutchan, E.A.; Casten, R.F.; Casperson, R.J.; Heinz, A.; Huber, B.; Luttke, R.; Qian, J.; Shoraka, B.; Terry, J.R.; Williams, Elizabeth


Excited, low-spin states in Ce130 are populated in the ?+/? decay of Pr130 and studied through off-beam ?-ray spectroscopy at the Yale moving tape collector. New coincidence data lead to the construction of a substantially revised level scheme. The low-lying states of Ce130 are compared with the predictions of the X(5) critical-point model and the X(5)-?4 model, and the latter is found to give better agreement with the data in terms of energies. Discrepancies in the relative B(E2) values in...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Physical Review C: Nuclear Physics
DOI: 10.1103/PhysRevC.77.014307


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