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arXiv · 1708.00824

Intrinsic properties of high-spin band structures in triaxial nuclei

S. Jehangir·G. H. Bhat·J. A. Sheikh·R. Palit·P. A. Ganai
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Abstract

The band structures of $^{68,70}$Ge, $^{128,130,132,134}$Ce and $^{132,134,136,138}$Nd 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 anamoluos behaviour can be explained by considering $γ$-bands based on two-quasiparticle configurations. As the parent band and the $γ$-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.

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S. Jehangir, G. H. Bhat, J. A. Sheikh, R. Palit, P. A. Ganai. 2017-08-02. Intrinsic properties of high-spin band structures in triaxial nuclei. https://doi.org/10.1016/j.nuclphysa.2017.08.001

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