Infra-red stability of Yukawa and soft-breaking fixed points

被引：24

作者：

Jack, I ^{[1
]}

Jones, DRT ^{[1
]}

机构：

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

来源：

PHYSICS LETTERS B | 1998年 / 443卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(98)01321-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the infra-red stability of the fixed points in the evolution of the Yukawa couplings, A-parameters and soft scalar masses in a broad class of supersymmetric theories. We show that the issue of stability is essentially determined in all three cases by the eigenvalues of the same matrix. In a very wide range of physically interesting theories it follows that, in the asymptotically free case, the existence of stable infra-red bred points for the Yukawa couplings implies stable infra-red fixed points for the A-parameters and soft scalar masses. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：177 / 184

页数：8

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