论文标题
Quarkyonic物质的字段理论模型
A field theoretical model for quarkyonic matter
论文作者
论文摘要
与大型中子恒星内部相关密度的核物质可能是Quarkynoic物质的可能性引起了近期兴趣。在这项工作中，我们构建了一个字段理论模型来描述夸克，这将允许对其各种属性进行定量和系统的计算。这是通过将Walecka模型与Quark-Meson模型合成的，在该模型中，夸克和核子自由度均基于夸克的场景存在。使用此模型，我们在平均场水平上计算对称核物质的热力学特性，并通过众所周知的核物理测量来校准模型参数。我们发现该模型很好地描述了从中度到高巴属密度的对称核物质，并证明了从核子占主导地位到系统的夸克占主导地位的连续过渡。
The possibility that nuclear matter at a density relevant to the interior of massive neutron stars may be a quarkynoic matter has attracted considerable recent interest. In this work, we construct a field theoretical model to describe the quarkyonic matter, that would allow quantitative and systematic calculations of its various properties. This is implemented by synthesizing the Walecka model together with the quark-meson model, where both quark and nucleon degrees of freedom are present based on the quarkyonic scenario. With this model we compute at mean-field level the thermodynamic properties of the symmetric nuclear matter and calibrate model parameters through well-known nuclear physics measurements. We find this model gives a very good description of the symmetric nuclear matter from moderate to high baryon density and demonstrates a continuous transition from nucleon-dominance to quark-dominance for the system.
