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arXiv 1802.00698hep-lathep-ph
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格点模拟中三胶子格林函数的零交叉

On the zero-crossing of the three-gluon Green's function from lattice simulations

A. Athenodorou, Ph. Boucaud, F. De Soto, J. Rodríguez-Quintero, S. Zafeiropoulos

摘要:

我们报告最近所做的一些努力,以便更好地了解一些IR性质的3点胶子格林函数利用大体积淬火晶格模拟的结果。这些晶格的结果已获得通过使用树级Symanzik和标准的威尔逊行动,在评估的目的可能产生的影响,大概是从一个特定的选择的离散化的行动。结果的主要特征是在零动量下存在负对数散度,它在低动量下拉低3-胶子形状因子,因此在给定的深红外动量下产生零交叉。通过分析相应的Dyson-Schwinger方程和适当的截断格式,可以正确地解释上述结果。

英文摘要:

We report on some efforts recently made in order to gain a better understanding of some IR properties of the 3-point gluon Green's function by exploiting results from large-volume quenched lattice simulations. These lattice results have been obtained by using both tree-level Symanzik and the standard Wilson action, in the aim of assessing the possible impact of effects presumably resulting from a particular choice for the discretization of the action. The main resulting feature is the existence of a negative logaritmic divergence at zero-momentum, which pulls the 3-gluon form factors down at low momenta and, consequently, yields a zero-crossing at a given deep IR momentum. The results can be correctly explained by analyzing the relevant Dyson-Schwinger equations and appropriate truncation schemes.

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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