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arXiv 0912.4152hep-lat
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数值随机微扰论中猝灭格点量子色动力学的两点函数(I)朗道规范中的鬼传播子

Two-point functions of quenched lattice QCD in Numerical Stochastic Perturbation Theory. (I) The ghost propagator in Landau gauge

F. Di Renzo, E. -M. Ilgenfritz, H. Perlt, A. Schiller, C. Torrero

摘要:

本文是关于SU(3)格点规范理论中鬼和胶子传播子微扰计算的两篇系列论文中的第一篇。我们的最终目标是最终比较晶格模拟的结果,以照亮真正的非微扰内容后者。本文用数值随机微扰理论计算了朗道规范中三圈以内的鬼传播子。我们提出的结果在无限体积和$a \to 0$限制,我们详细讨论的一般策略的基础上。

英文摘要:

This is the first of a series of two papers on the perturbative computation of the ghost and gluon propagators in SU(3) Lattice Gauge Theory. Our final aim is to eventually compare with results from lattice simulations in order to enlight the genuinely non-perturbative content of the latter. By means of Numerical Stochastic Perturbation Theory we compute the ghost propagator in Landau gauge up to three loops. We present results in the infinite volume and $a \to 0$ limits, based on a general strategy that we discuss in detail.

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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