论文标题
重离子在Hight Energy碰撞之前被“预热”
The heavy ions are "preheated" prior to hight energy collisions
论文作者
论文摘要
所谓的“ Isobar Run”或RHIC旨在比较$^{96} _ {40} Zr $碰撞的许多可观察到的物品与$^{44} ru $的$^{96} _ {44} ru $，旨在识别$ z $依赖的效果。但是，由于恒星数据以前所未有的精度显示，因此这两个核能差异比预期的强大，产生的效果大于取决于电荷的效果。到目前为止，与各种可观察物有关的多项研究试图量化其形状差异。一般共识是，这些差异应以某种方式与核结构有关，尤其是最低激发态的性质。然而，这些领域之间的确切联系 - 低能和高能核物理 - 仍然缺少。在本文中，我通过“预热”核的热密度矩阵的概念提出了这种联系。有效温度应参数化哪些激发态应包括在计算中。我还建议在有限温度下用于计算热密度矩阵的半经典“波动”方法。
The so called "isobar run" or RHIC was designed to compare a number of observables for collisions of $^{96}_{40}Zr$ with those of $^{96}_{44}Ru$, aimed at identification of $Z$-dependent effects. However, as the STAR data have shown with unprecedented accuracy, these two nuclides differ stronger than expected, producing effects larger than those depending on charge. So far, multiple studies tried to quantify their shape differences, in relation to various observables. General consensus is that these differences somehow should be related to nuclear structure, in particularly properties of the lowest excited states. Yet the precise connection between these fields -- low and high energy nuclear physics -- is still missing. In this paper I propose such a connection, via a concept of thermal density matrices of a "preheated" nuclei. The effective temperature should parameterize which set of excited states should be included in the calculations. I also suggest semiclassical "flucton" method at finite temperatures to be used to calculate thermal density matrices.
