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arXiv 1401.4293hep-lat
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磁通管中手征对称性部分恢复的格点量子色动力学研究

Lattice QCD study of partial restoration of chiral symmetry in the flux-tube

Takumi Iritani, Guido Cossu, Shoji Hashimoto

摘要:

本文利用格点量子色动力学中的狄拉克-狄拉克本征模,研究了静态色源周围手征凝聚体的空间分布。在色源之间,出现一个色通管,导致一个线性的限制势。通过测量手征凝聚体的局部值,我们发现夸克-反夸克和三夸克系统的手征凝聚体的大小在通量管内都减小了。这些结果表明,手征对称性是部分恢复的磁通管。在通量中心处,冷凝物的减少估计为约20 $\sim$ 30%。

英文摘要:

Using the overlap-Dirac eigenmodes, we study the spatial distribution of the chiral condensate around static color sources in lattice QCD. Between the color sources, there appears a color-flux tube, which leads a linear confining potential. By measuring a local value of the chiral condensate, we show that the magnitude of the condensate is reduced inside the flux-tube for both quark-antiquark and three-quark systems. These results suggest that chiral symmetry is partially restored in the flux-tube. The reduction of the condensate is estimated to be about 20 $\sim$ 30% at the center of the flux.

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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