Landau pole effects and the parameter space of the minimal supergravity model

被引：19

作者：

Nath, P ^{[1
]}

Wu, JZ ^{[1
]}

Arnowitt, R ^{[1
]}

机构：

[1] TEXAS A&M UNIV,DEPT PHYS,COLLEGE STN,TX 77843

来源：

PHYSICAL REVIEW D | 1995年 / 52卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.52.4169

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that analyses at the electroweak scale can be significantly affected due to Landau pole effects in certain regions of the parameter space. This phenomenon arises because of a large magnification of errors of the input parameters m(t), alpha(G) which have currently a 10% uncertainty in their determination. The influence of the Landau pole on the constraint that the scalar SUSY spectrum be free of tachyons is also investigated. It is found that this constraint is very strong and eliminates a large portion of the parameter space. Under the above constraint the trilinear soft SUSY-breaking term at the electroweak scale is found to lie in a restricted domain.

引用

页码：4169 / 4177

页数：9

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