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arXiv 1706.01255hep-lathep-ph
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有限T下晶格上Y弦的束缚势

Confining potential of Y-string on the lattice at finite T

Ahmed S. Bakry, Xurong Chen, Peng-Ming Zhang

摘要:

利用SU(3)格点量子色动力学,在有限温度下,采用Polyakov环算符,研究了三夸克系统的静态势。我们集中分析了3Q势的大距离性质,发现了与Y弦模型公式的良好拟合行为。除了与Y弦的最小长度成比例的线性限制项之外,我们观察到,与Dedekind eta函数成比例并解释Y弦的量子涨落的次引导对数项对于再现有限温度下相应介子系统的夸克反夸克弦张力是必要的。

英文摘要:

The potential due to a system of three static quark (3Q) is studied using SU(3) lattice QCD at finite temperature with Polyakov loops operators. We focused our analysis on the large distance properties of the 3Q potential and found a good fit behavior to the Y-string model formula. In addition to the linearly confining term proportional to the minimal length of the Y-string, we observed that the subleading logarithmic term, which is proportional to Dedekind eta function and accounts for the Y-string's quantum fluctuations, is necessary to reproduce the quark anti-quark string tension of the corresponding mesonic system at finite temperature.

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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