标题： 使用现代核密度泛函的折叠势能及其在 16O+208Pb 反应中的应用 显示英文标题

标题： Folding potential with modern nuclear density functionals and application to 16O+208Pb reaction

摘要： 采用M3Y相互作用和基于四种微观能量密度泛函(EDF)模型得到的弹射体与靶核的物质密度，构建了双折叠势。利用这四种EDF模型的双折叠势，用光学模型计算了16O+208Pb系统的弹性散射截面。我们着重研究了物质密度、双折叠势以及弹性散射截面之间的关联性。首先，通过比较四种EDF模型的结果来检查物质和电荷密度。内部区域的密度存在轻微差异，但在外部区域可以忽略不计。接着，利用从四种EDF模型获得的物质密度计算双折叠势。模型间的差异在外部区域可以忽略，但内部区域的势深度显示出模型依赖性，这可以从内部区域物质密度的行为来理解。另一个要点是双折叠势对入射能量表现出弱依赖性。最后，除了后向角略有差异外，弹性散射截面没有显著的模型依赖性。 显示英文摘要

摘要： Double folding potential is constructed using the M3Y interaction and the matter densities of the projectile and target nuclei obtained from four microscopic energy density functional (EDF) models. The elastic scattering cross sections for the 16O+208Pb system are calculated using the optical model with the double folding potentials of the four EDF models. We focus on the correlation between the matter densities and the behavior the double folding potential and the elastic scattering cross sections. First, the matter and charge densities are examined by comparing the results of the four EDF models. There is a slight difference in the density in the internal region, but it is negligible in the outer region. Next, we calculate the double folding potential with the matter densities obtained from the four EDF models. Differences between the models are negligible in the outer region, but the potential depth in the internal region shows model dependence, which can be understood from the behavior of matter densities in the internal region. Another point is that the double folding potential is shown to be weakly dependent on the incident energy. Finally, the elastic scattering cross sections have no significant model dependence except for the slight difference in the backward angle.