INSTANTONS AS A BRIDGE BETWEEN WEAK AND STRONG COUPLING IN QUANTUM CHROMODYNAMICS

被引：105

作者：

CALLAN, CG ^{[1
]}

DASHEN, RF ^{[1
]}

GROSS, DJ ^{[1
]}

机构：

[1] INST ADV STUDY, PRINCETON, NJ 08540 USA

来源：

PHYSICAL REVIEW D | 1979年 / 20卷 / 12期

关键词：

D O I：

10.1103/PhysRevD.20.3279

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The transition from weak to strong coupling in quantum chromodynamics is discussed using semiclassical methods to calculate the effective coupling g(a) of an effective lattice theory as a function of a. We demonstrate that the renormalization effects due to instantons cause a sharp transition from weak to strong coupling in the range g(a)1.5-3. This is verified by showing that the string tension" as well as the function calculated by semiclassical methods match their strong-coupling behavior for g1.5-3. An independent test of this notion is provided by a bag-model calculation of the string tension. © 1979 The American Physical Society."

引用

页码：3279 / 3291

页数：13

共 10 条

[1] TOWARD A THEORY OF STRONG INTERACTIONS [J].