New scheme for the running coupling constant in gauge theories using Wilson loops

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

研究成果: Article査読

32 被引用数 (Scopus)

抄録

We propose a new renormalization scheme of the running coupling constant in general gauge theories using the Wilson loops. The renormalized coupling constant is obtained from the Creutz ratio in lattice simulations and the corresponding perturbative coefficient at the leading order. The latter can be calculated by adopting the zeta-function resummation techniques. We perform a benchmark test of our scheme in quenched QCD with the plaquette gauge action. The running of the coupling constant is determined by applying the step-scaling procedure. Using several methods to improve the statistical accuracy, we show that the running coupling constant can be determined in a wide range of energy scales with a relatively small number of gauge configurations.

本文言語English
論文番号034507
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
80
3
DOI
出版ステータスPublished - 2009 8 31
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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