论文标题
液体滴模型参数对核液体气相跃迁的影响
Effect of liquid drop model parameters on nuclear liquid gas phase transition
论文作者
论文摘要
在中间能量的重离子碰撞中发生的液态气相变现象是当代利益的主题。在片段化的统计模型中，液滴模型通常用于计算碎片的基态结合能。众所周知，在低密度冻结处热片段的表面和对称能量可以进行重大修改。除此之外，水平密度参数还具有较大的变化。研究了这些参数变异的影响在与核液体气相转变有关的碎片观测值上。在描述碎片现象方面非常成功的规范热力学模型用于研究。由于液滴模型参数的变化，过渡温度的变化已被检查。
The phenomenon of liquid-gas phase transition occurring in heavy ion collisions at intermediate energies is a subject of contemporary interest. In statistical models of fragmentation, the liquid drop model is generally used to calculate the ground state binding energies of the fragments. It is well known that the surface and symmetry energy of the hot fragments at the low density freeze out can be considerably modified. In addition to this, the level density parameter also has a wide variation. The effect of variation of these parameters is studied on fragmentation observables which are related to the nuclear liquid gas phase transition. The canonical thermodynamical model which has been very successful in describing the phenomenon of fragmentation is used for the study. The shift in transition temperature owing to the variation in liquid drop model parameters has been examined.
