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基于同位旋相关的量子分子动力学模型,采用三种不同形式的对称势,研究了124Sn+124Sn和124Ba+124Ba对心碰撞时在三种不同对称势下的径向膨胀流,发现径向膨胀流阈能与所采用的对称能形式密切相关,表现出明显同位旋效应,预示着径向膨胀流阈能的同位旋相关性可作为对称能的灵敏探针.
Based on the isospin-related quantum molecular dynamics model, three different forms of symmetry potentials were used to study the radial expansion flow of 124Sn + 124Sn and 124Ba + 124Ba at three different symmetric potentials in the case of a heart-collision. The radial expansion The flow threshold can be closely related to the symmetrical energy form and shows a significant isospin effect, indicating that the isospin dependence of the radial swell flow threshold energy can be used as a sensitive probe for symmetry energy.