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arXiv 1901.08124hep-ph
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量子色动力学的微分Dyson-Schwinger方程

Differential Dyson-Schwinger equations for quantum chromodynamics

Marco Frasca

摘要:

利用Bender、Milton和Savage提出的一种方法,我们导出了微分形式的量子色动力学的Dyson-Schwinger方程。我们停止对两点函数的分析。导出了色数趋于无穷大的t~Hooft极限,说明了如何将这些方程转换成一个可处理的甚至是近似的形式。通过讨论手征对称性和禁闭的动力学破缺,可以看出这个极限是如何给出量子色动力学低能行为的合理描述的,为后者提供了条件。这种方法利用了量子场论中的背景场技术。

英文摘要:

Using a technique devised by Bender, Milton and Savage, we derive the Dyson-Schwinger equations for quantum chromodynamics in differential form. We stop our analysis to the two-point functions. The 't~Hooft limit of color number going to infinity is derived showing how these equations can be cast into a treatable even if approximate form. It is seen how this limit gives a sound description of the low-energy behavior of quantum chromodynamics by discussing the dynamical breaking of chiral symmetry and confinement, providing a condition for the latter. This approach exploits a background field technique in quantum field theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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