On RG potentials in Yang-Mills theories

被引：17

作者：

Latorre, JI

Lutken, CA

机构：

[1] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

[2] Univ Oslo, Dept Phys, N-0316 Oslo, Norway

来源：

PHYSICS LETTERS B | 1998年 / 421卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(97)01588-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We construct an RG potential for N = 2 supersymmetric SU(2) Yang-Mills theory, and extract a positive definite metric by comparing its gradient with the recently discovered beta-function for this system, thus proving that the RG flow is gradient in this four-dimensional field theory. We also discuss how this flow might change after supersymmetry breaking, provided the quantum symmetry group does not, emphasizing the non-trivial problem of asymptotic matching of automorphic functions to perturbation theory. (C) 1998 Elsevier Science B.V.

引用

页码：217 / 222

页数：6