The running QCD coupling in the pre-asymptotic region

被引：10

作者：

Burgio, G ^{[1
]}

Di Renzo, F

Parrinello, C

Pittori, C

机构：

[1] Univ Parma, Dept Fis, I-43100 Parma, Italy

[2] Ist Nazl Fis Nucl, Grp Collegato Parma, Parma, Italy

[3] Univ Liverpool, Dept Math Sci, UKQCD Collaborat, Liverpool L69 3BX, Merseyside, England

[4] Univ Liege Sart Tilmann, Inst Phys Nucl Theor, B-4000 Liege, Belgium

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1999年 / 74卷

关键词：

D O I：

10.1016/S0920-5632(99)00203-0

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study deviations from the perturbative asymptotic behaviour in the running QCD coupling by analysing non-perturbative measurements of alpha(s)(p) at low momenta (p approximate to 2 GeV) as obtained from the lattice three-gluon vertex. Our exploratory study provides some evidence for power corrections to the perturbative running proportional to 1/p(2).

引用

页码：388 / 391

页数：4