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arXiv 1601.04404hep-ph
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Schwinger-Dyson方程中有限温度下QCD手征相变的规范依赖性

Gauge dependence on the chiral phase transition of QCD at finite temperature in the Schwinger-Dyson equation

Hiroaki Kohyama

摘要:

基于猝灭的Schwinger-Dyson方程,研究了有限温度下量子色动力学中手征相变的规范依赖性。我们首先在一般规范下求解有限温度下的非近似方程,然后研究了手征相变临界温度对规范的依赖性。我们发现临界温度与规范的选择和Schwinger-Dyson方程中的淬火能级参数密切相关。

英文摘要:

We study the gauge dependence on the chiral phase transition of Quantum chromodynamics at finite temperature based on the quenched Schwinger-Dyson equation. We first solve the equations without approximations at finite temperature in general gauge, then study the gauge dependence on the critical temperature of the chiral phase transition. We find that the critical temperature drastically depends on the choice of the gauge, and the parameters at the quenched level in the Schwinger-Dyson equations.

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