在SD对壳模型下,研究了质子中子耦合系统中U(5)←→O(6)相变.发现该模型可以很好地再现相互作用玻色子模型中U(5)←→O(6)相变.这一结果表明SD对近似的合理性及相互作用玻色子模型具有很好的壳模型基础.
The SD-pair shell model was applied to study the U(5)←→O(6) phase transition for proton-neutron coupling system. It is found that the U(5)←→O(6) phase transition can be described very well. This results show that the SD-pair truncation is reasonable and the IBM has a sound shell model foundation.