论文标题
在有限温度下的核中聚类
Clustering in nuclei at finite temperature
论文作者
论文摘要
我们研究了$^{20} $ ne（$ n = z $）和中子富$^{32} $ ne nuclei中的本地化和聚类特征，零和有限的温度。有限温度Hartree-Bogoliubov理论与相对论密度依赖性的涅us子偶联功能DD-ME2一起使用。结果表明，聚类特征随着温度的增加而逐渐减弱，并在形状相变发生时消失。考虑到密度曲线的热波动，与没有热波动的情况相比，聚类的特征在较低的温度下消失。在有限温度下，还研究了配对相关性对核子定位和簇结构形成的影响。由于将配对纳入计算，因此将保留簇结构，直到达到形状相变的临界温度为止。在形状相变的临界温度之上，聚类特征突然消失，与结果不同而没有配对。
We investigate the localization and clustering features in $^{20}$Ne ($N=Z$) and neutron-rich $^{32}$Ne nuclei at zero and finite temperatures. The finite temperature Hartree-Bogoliubov theory is used with the relativistic density-dependent meson-nucleon coupling functional DD-ME2. It is shown that clustering features gradually weaken with increasing temperature and disappear when the shape phase transition occurs. Considering thermal fluctuations in the density profiles, the clustering features vanish at lower temperatures, compared to the case without thermal fluctuations. The effect of the pairing correlations on the nucleon localization and the formation of cluster structures are also studied at finite temperatures. Due to the inclusion of pairing in the calculations, cluster structures are preserved until the critical temperatures for the shape phase transition are reached. Above the critical temperature of the shape phase transition, the clustering features suddenly disappear, which differs from the results without pairing.
