The interacting boson fermion-fermion model is employed in the analysis of the positive-parity doublet bands in 134Pr. It is shown that stable triaxial deformation gives rise to the experimentally observed crossing between the yrast and yrare bands built on the πh11/2⊗vh 11/2 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 y 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 N=75 nuclei with γ-soft potential energy surfaces.
|Pages (from-to)||173041 - 173044|
|Number of pages||4|
|Journal||Physical Review C - Nuclear Physics|
|Publication status||Published - 2004|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics