Interacting boson fermion-fermion model calculation of the [Formula Presented] doublet bands in [Formula Presented]

S. Brant, D. Vretenar, A. Ventura

Research output: Contribution to journalArticle


The interacting boson fermion-fermion model is employed in the analysis of the positive-parity doublet bands in [Formula Presented]. It is shown that stable triaxial deformation gives rise to the experimentally observed crossing between the yrast and yrare bands built on the [Formula Presented] configuration. The collective structure of the yrast band is basically built on the ground-state band of the triaxial core, whereas the collective structure of the yrare band is predominantly based on the [Formula Presented] band of the core. The mixing between the two bands increases with angular momentum. A constant energy spacing between the two lowest positive-parity bands is predicted in other odd-odd [Formula Presented] nuclei with [Formula Presented]-soft potential energy surfaces. © 2004 The American Physical Society.
Original languageEnglish
Pages (from-to)4 -
JournalPhysical Review C - Nuclear Physics
Issue number1
Publication statusPublished - 2004
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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