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arXiv 1204.6591hep-lat
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库仑规范中Faddeev-Popov本征模胶子动量分量的格点量子色动力学分析

Lattice QCD analysis for Faddeev-Popov eigenmodes in terms of gluonic momentum components in the Coulomb gauge

Takumi Iritani, Hideo Suganuma

摘要:

本文用SU(3)格点量子色动力学分析了库仑规范中Faddeev-Popov本征模与胶子动量分量的关系。在库仑规范中,色库仑能量被近零的Faddeev-Popov本征模极大地增强,这将导致禁闭势。通过紫外-动量胶子切割,色库仑能量和Faddeev-Popov谱几乎不变。与紫外不敏感性相反,色库仑能量和Faddeev-Popov本征模被红外动量胶子切割而急剧改变。如果没有红外胶子,色库仑能量趋向于变得不受限制,并且接近零的Faddeev-Popov本征模消失。我们还研究了全FP本征模,发现红外胶子对高、低Faddeev-Popov本征模都有广泛的影响。

英文摘要:

We analyze the relation between Faddeev-Popov eigenmodes and gluon-momentum components in the Coulomb gauge using SU(3) lattice QCD. In the Coulomb gauge, the color-Coulomb energy is largely enhanced by near-zero Faddeev-Popov eigenmodes, which would lead to the confining potential. By the ultraviolet-momentum gluon cut, the color-Coulomb energy and the Faddeev-Popov spectrum are almost unchanged. In contrast to the ultraviolet insensitivity, the color-Coulomb energy and the Faddeev-Popov eigenmodes drastically change by infrared-momentum gluon cut. Without infrared gluons, the color-Coulomb energy tends to become non-confining, and near-zero Faddeev-Popov eigenmodes vanish. We also investigate the full FP eigenmodes, and find that infrared gluons widely influence both high and low Faddeev-Popov eigenmodes.

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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