Interacting Boson Model plus broken-pairs description of high-spin dipole bands
D. Vretenar, S. Brant, G. Bonsignori, L. Corradini, C. M. Petrache
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 136Nd. Model calculations reproduce ten bands of positive and negative parity states, including the two dipole high-spin structures based on the (πh11/2)2 (νh11/2)2 configuration.
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