PERTURBATIVE INFRARED FINITENESS OF YANG-MILLS THEORY FROM RENORMALIZATION-GROUP FLOW

被引：18

作者：

BONINI, M

DATTANASIO, M

MARCHESINI, G

机构：

[1] IST NAZL FIS NUCL, COLL PARMA GRP, PARMA, ITALY

[2] UNIV MILAN, DIPARTIMENTO FIS, MILAN, ITALY

[3] IST NAZL FIS NUCL, SEZ MILANO, I-20133 MILAN, ITALY

来源：

NUCLEAR PHYSICS B | 1995年 / 444卷 / 03期

关键词：

D O I：

10.1016/0550-3213(95)00166-P

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：

It is commonly believed that a Yang-Mills theory (and in general a massless theory) with a nonvanishing subtraction point is infrared finite, i.e. the vertex functions at non-exceptional momenta are finite. We give a simple perturbative proof of this fact by using the Wilson renormalization group formulation. The proof requires the control of the singular behaviour of vertex functions only for a restricted class of exceptional configurations of momenta.

引用

页码：602 / 616

页数：15

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