论文标题
在Polyakov环内轴上的培养基中，增强了Nambu-Jona-Lasinio模型
In medium properties of axion within a Polyakov loop enhanced Nambu-Jona-Lasinio model
论文作者
论文摘要
我们估计轴心特性，即在有限温度和夸克化学势下，Polyakov环中的质量，拓扑敏感性以及Polyakov环中增强的Nambu-Jona-Lasinio（PNJL）模型的自我耦合。 PNJL模型，其中夸克夫妇同时与手性冷凝物和背景时间量子质量动力学（QCD）仪表范围内，包括QCD相变的两个重要特征，即解元和手性对称性恢复。 PNJL模型中的Polyakov循环在临界温度附近起着重要作用。与使用NAMBU-JONA-LASINIO（NJL）模型获得的相同相比，我们已经显示出在PNJL模型中计算出的轴突属性的显着差异。我们发现，轴突的质量及其自我偶联都与手性转变以及监禁 - 结构过渡相关。我们还估计有限化学势的轴突特性。在QCD过渡温度和/或夸克化学势轴质量及其自耦合也有显着变化。由于PNJL模型既包括费米子扇区和量规场，因此它可以对轴突性质进行可靠的估计，即它的质量和在热且密集的QCD介质中的质量和自耦合。我们还将结果与晶格QCD结果进行比较。
We estimate the axion properties i.e. its mass, topological susceptibility and the self-coupling within the framework of Polyakov loop enhanced Nambu-Jona-Lasinio (PNJL) model at finite temperature and quark chemical potential. PNJL model, where quarks couple simultaneously to the chiral condensate and to a background temporal quantum chromodynamics (QCD) gauge field, includes two important features of QCD phase transition, i.e. deconfinement and chiral symmetry restoration. The Polyakov loop in PNJL model plays an important role near the critical temperature. We have shown significant difference in the axion properties calculated in PNJL model compared to the same obtained using Nambu-Jona-Lasinio (NJL) model. We find that both the mass of the axion and its self-coupling are correlated with the chiral transition as well as the confinement-deconfinement transition. We have also estimated the axion properties at finite chemical potential. Across the QCD transition temperature and/or quark chemical potential axion mass and its self-coupling also changes significantly. Since the PNJL model includes both the fermionic sector and the gauge fields, it can give reliable estimates of the axion properties, i.e. it's mass and the self-coupling in a hot and dense QCD medium. We also compare our results with the lattice QCD results whenever available.
