Elsevier

Nuclear Physics A

Volume 539, Issue 3, 30 March 1992, Pages 418-440
Nuclear Physics A

Description of transitional nuclei in the sdg boson model

https://doi.org/10.1016/0375-9474(92)90285-RGet rights and content

Abstract

We study the transitional nuclei in the framework of the sdg boson model. This extension is necessitated by recent measurements of E2 and E4 transitions in the Pt and Os isotopes which can not be explained in the sd boson models. We show how γ-unstable and triaxial shapes arise from special choices of sdg model hamiltonians and discuss ways of limiting the number of free parameters through consistency and coherence conditions. A satisfactory description of E2 and E4 properties is obtained for the Pt and Os nuclei, which also predicts dynamic shape transitions in these nuclei.

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    Present Address: Dept. of Theoretical Physics, Research School of Physical Sciences, Australian National University, Canberra, ACT 2601, Australia.

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