论文标题
轴向异常在三个风味线性sigma模型中的冷凝物依赖性的扰动RG分析
Perturbative RG analysis of the condensate dependence of the axial anomaly in the three flavor linear sigma model
论文作者
论文摘要
在三种风味线性sigma模型的框架中研究了hhoft的决定词的耦合作为手性冷凝物的函数。使用围绕有效动作的最小点的扰动理论，我们计算了第一场磁场校正与常规U_A（1）破坏决定性项的耦合的重新归一化组流动。发现在低温下，在手性冷凝物降低时，中间波动会导致异常增加。作为应用，我们分析了零温度核液体气体过渡的效果。
Coupling of `t Hooft's determinant term is investigated in the framework of the three flavor linear sigma model as a function of the chiral condensate. Using perturbation theory around the minimum point of the effective action, we calculate the renormalization group flow of the first field dependent correction to the coupling of the conventional U_A(1) breaking determinant term. It is found that at low temperatures mesonic fluctuations make the anomaly increase when the chiral condensate decreases. As an application, we analyze the effect at the zero temperature nuclear liquid-gas transition.
