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arXiv 1307.4485hep-ph
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产生夸克禁闭的动力学机制

A dynamical mechanism for generating quark confinement

Han-Xin He, Yu-Xin Liu

摘要:

基于协变规范量子色动力学(QCD)中的规范不变性,我们探讨了产生红外奇异夸克胶子顶点和夸克禁闭的动力学机制。我们首先导出了夸克胶子顶点红外极限行为的规范不变性约束关系,揭示了夸克胶子顶点红外行为产生的机制。因此,我们揭示了一种新的机制,产生一个红外奇异夸克胶子顶点,然后限制大质量夸克的线性上升的潜力,其中红外奇异性的形状因子组成的夸克鬼散射内核起着至关重要的作用。同时给出了手征对称性破缺与夸克禁闭的联系机制。

英文摘要:

We explore the dynamical mechanism for generating the infrared singular quark-gluon vertex and quark confinement based on the gauge invariance in covariant-gauge quantum chromodynamics(QCD). We first derive the gauge-invariance constraint relation for the infrared-limit behavior of the quark-gluon vertex, which shows the mechanism for generating the infrared behavior of the quark-gluon vertex. We hence unravel a novel mechanism for generating an infrared singular quark-gluon vertex and then a linear rising potential for confining massive quarks, where the infrared singularity in the form factors composing the quark-ghost scattering kernel plays a crucial role. The mechanism for linking chiral symmetry breaking with quark confinement is also shown.

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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