论文标题
提取模型夸克传播器的光谱密度
Extracting a model quark propagator's spectral density
论文作者
论文摘要
我们提出了一个实用的程序，将类似太空的夸克传播器推到复杂平面上，该平面遵循Schlessinger Point方法和传播器的光谱表示。作为一个可行的例子，我们采用夸克传播剂的不同口味，从相应的dyson-schwinger方程（DSE）的溶液中获得。采用了两种不同的截断。因此，研究了夸克传播器的分析结构，并利用观察到的特征的当前夸克质量依赖性。
We propose a practical procedure to extrapolate the space-like quark propagator onto the complex plane, which follows the Schlessinger Point Method and the spectral representation of the propagator. As a feasible example, we employ quark propagators for different flavors, obtained from the solutions of the corresponding Dyson-Schwinger equation (DSE). Two different truncations are employed. Thus, the analytical structure of the quark propagator is studied, capitalizing on the current-quark mass dependence of the observed features.
