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Interacting Boson Model plus broken-pairs description of high-spin dipole bands

D. Vretenar·S. Brant·G. Bonsignori·L. Corradini·C. M. Petrache
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Abstract

The Interacting Boson Model with broken-pairs has been extended to include mixed proton-neutron configurations in the fermion model space. The extended version of the model has been used to describe high-spin bands in the transitional nucleus $^{136}$Nd. Model calculations reproduce ten bands of positive and negative parity states, including the two dipole high-spin structures based on the $(πh_{11/2})^2$ $(νh_{11/2})^2$ configuration.

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D. Vretenar, S. Brant, G. Bonsignori, L. Corradini, C. M. Petrache. 1997-10-23. Interacting Boson Model plus broken-pairs description of high-spin dipole bands. https://doi.org/10.1103/physrevc.57.675

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