OPE and power corrections to the QCD coupling constant.

被引：5
|
作者：
Boucaud, P
De Soto, F
Donini, A
Leroy, JP
Le Yaouanc, A
Micheli, J
Moutarde, H
Pène, O
Rodríguez-Quintero, J
机构：
[1] Univ Paris 11, Phys Theor Lab, F-91405 Orsay, France
[2] Univ Seville, Dpto Fis Atom Mol & Nucl, E-41012 Seville, Spain
[3] Univ Huelva, EPS La Rabida, Dpto FA, Palos De La Fra 21819, Spain
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2003年 / 114卷
关键词：
D O I：
10.1016/S0920-5632(02)01899-6
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：
Lattice data seems to show that power corrections should be convoked to describe appropriately the transition of the QCD coupling constant running from U.V. to I.R. domains. Those power corrections for the Landau-gauge MOM coupling constant in a pure Yang-Mills theory (N-f = 0) are analysed in terms of Operator Product Expansion (O.P.E.) of two- and three-point Green functions, the gluon condensate < A(2) > emerging from this study. The semi-classical picture given by instantons can be also used to look for into the nature of the power corrections and gluon condensate.
引用
收藏
页码：117 / 121
页数：5
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