γ-unstable nuclei in the sdg boson model

S. Kuyucak, V. S. Lac, I. Morrison, B. R. Barrett

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Abstract

Following the recent Pt(p, p′) experiments which indicated the need for g bosons to reproduce the E4 data, we have extended the O(6) limit of the sd boson model to include g bosons. It is shown that a γ-unstable hamiltonian in the sdg model consisting of a quadrupole interaction and a g boson energy leads to results that are very similar to the O(6) limit. Deviations from the empirical energy spectrum that stem from the γ-unstable nature of the hamiltonian can be improved by including a consistent hexadecapole interaction which induces triaxiality. The same hexadecapole operator can also account for the strong E4 transitions. Applications are made to the Xe and Pt isotopes.

Original languageEnglish (US)
Pages (from-to)347-352
Number of pages6
JournalPhysics Letters B
Volume263
Issue number3-4
DOIs
StatePublished - Jul 18 1991

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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