标题： 热核物质与膨胀子 显示英文标题

标题： Hot nuclear matter with dilatons

摘要： 我们研究基于核子相互作用的热核物质，这些相互作用来源于标量和矢量介子的交换。 我们工作的主要新特点是通过引入一个标度场来处理量子色动力学的尺度破坏。 尽管标度场的影响在数量上相当小，但它们显著影响了高温相变。 我们发现，包括标度场会导致零压下的亚稳高密度状态，类似于Glendenning所发现的情况，他则考虑了更高重子共振的混合。 显示英文摘要

摘要： We study hot nuclear matter in a model based on nucleon interactions deriving from the exchange of scalar and vector mesons. The main new feature of our work is the treatment of the scale breaking of quantum chromodynamics through the introduction of a dilaton field. Although the dilaton effects are quite small quantitatively, they affect the high-temperature phase transition appreciably. We find that inclusion of the dilaton leads to a metastable high-density state at zero pressure, similar to that found by Glendenning who considered instead the admixture of higher baryon resonances.