IMPLICATIONS OF NONUNIVERSALITY OF SOFT TERMS IN SUPERSYMMETRIC GRAND UNIFIED THEORIES

被引：181

作者：

MATALLIOTAKIS, D ^{[1
]}

NILLES, HP ^{[1
]}

机构：

[1] MAX PLANCK INST PHYS & ASTROPHYS,WERNER HEISENBERG INST,D-80805 MUNICH,GERMANY

来源：

NUCLEAR PHYSICS B | 1995年 / 435卷 / 1-2期

关键词：

D O I：

10.1016/0550-3213(94)00487-Y

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：

Most discussions of supersymmetric grand unified theories assume universality of the soft supersymmetry breaking terms at the grand scale. We point out that the behaviour of these theories might change significantly in the presence of non-universal soft terms. Particularly in SO(10)-like models with a large value of tan beta (and assuming Yukawa coupling unification for the third generation) we observe a decisive change of predictions, allowing the presence of relatively light gauginos as well as small supersymmetric corrections to the b-quark mass. Some results remain rather stable, including the mu-M(1/2) correlation. Models with small tan beta seem to be less affected by non-universality which mainly leads to the new possibility of small m(0) (i.e. the squark and slepton soft mass parameter), excluded in the universal case.

引用

页码：115 / 128

页数：14

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