arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0910.4196hep-lat
收藏

寻找扭曲Polyakov环方案中的IR不动点

Search for the IR fixed point in the twisted Polyakov loop scheme

Erek Bilgici, Antonino Flachi, Etsuko Itou, Masafumi Kurachi, C. -J. David Lin, Hideo Matsufuru, Hiroshi Ohki, Tetsuya Onogi, Eigo Shintani, Takeshi Yamazaki

摘要:

本文用非微扰方法研究了扭曲波里雅科夫环(TPL)中的运行耦合常数。我们研究了如何在SU(3)纯Yang-Mills理论中{ \it via}控制系统误差和统计误差。我们表明,我们的方法再现了微扰确定的运行耦合在UV。此外,我们的数值计算结果与理论预测的红外耦合常数一致。我们还给出了$N_f=12$ QCD的初步结果,其中可能存在红外不动点。

英文摘要:

We present a non-perturbative study of the running coupling constant in the Twisted Polyakov Loop (TPL) scheme. We investigate how the systematic and statistical errors can be controlled {\it via} a feasibility study in SU(3) pure Yang-Mills theory. We show that our method reproduces the perturbative determination of the running coupling in the UV. In addition, our numerical result agrees with the theoretical prediction of this coupling constant in the IR. We also present our preliminary results for $N_f=12$ QCD, where an IR fixed point may be present.

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。

↑