Intrinsic properties of high-spin band structures in triaxial nuclei

摘要

AbstractThe band structures of68,70Ge,128,130,132,134Ce and132,134,136,138Nd are investigated using the triaxial projected shell model (TPSM) approach. These nuclei depict forking of the ground-state band into several s-bands and in some cases, both the lowest two observed s-bands depict neutron or proton character. It was discussed in our earlier work that this anomalous behaviour can be explained by consideringγ-bands based on two-quasiparticle configurations. As the parent band and theγ-band built on it have the same intrinsic structure, g-factors of the two bands are expected to be similar. In the present work, we have undertaken a detailed investigation of g-factors for the excited band structures of the studied nuclei and the available data for a few high-spin states are shown to be in fair agreement with the predicted values.]]>