PHENOMENOLOGY OF GLUINO DECAYS VIA LOOPS AND TOP-QUARK YUKAWA COUPLING

被引：74

作者：

BAER, H

TATA, X

WOODSIDE, J

机构：

[1] UNIV HAWAII,DEPT PHYS & ASTRON,HONOLULU,HI 96822

[2] OKLAHOMA STATE UNIV,DEPT PHYS,STILLWATER,OK 74078

来源：

PHYSICAL REVIEW D | 1990年 / 42卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.42.1568

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have reanalyzed the decay patterns of the gluino (gÌ) incorporating all its decays to charginos (WÌi) and neutralinos (ZÌi) as given by the minimal model. We have made an independent computation of the decay width for gÌgZÌi which occurs at one loop and shown that the branching fraction for this can be up to 0.5. We have also computed the width for gÌtt»ZÌi including the effect of the top-quark Yukawa coupling, which significantly increases this width. We have studied the gluino decay modes as a function of parameter space, and clearly delineated the regions where the loop decays or gÌtt»ZÌi is large. The significance of these decays for gluino signatures in collider experiments is briefly commented on. © 1990 The American Physical Society.

引用

页码：1568 / 1576

页数：9

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