CONSTRAINTS ON SUPERSYMMETRIC PARTICLES FROM THE CERN LEP DATA ON Z0 DECAY PROPERTIES

被引：38

作者：

BAER, H

DREES, M

TATA, X

机构：

[1] CERN,CH-1211 GENEVA 23,SWITZERLAND

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

来源：

PHYSICAL REVIEW D | 1990年 / 41卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.41.3414

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that the recent measurements of the total Z0 width and the peak hadronic cross section at CERN LEP lead to, with very mild assumptions, the bounds m36 GeV, mlL38 GeV, and mdL33 GeV. For the minimal supersymmetric model, we are able to derive the additional bounds MW37 GeV, MZ57 GeV on the mass of the lighter chargino and third lightest neutralino, respectively, while the bound on mdIL is strengthened to 39 GeV. Finally, some improved strategies for searches of new physics using the peak cross section are commented on. © 1990 The American Physical Society.

引用

页码：3414 / 3420

页数：7

共 47 条

[41] SUPERGRAVITY INDUCED RADIATIVE SU(2) X U(1) BREAKING WITH LIGHT TOP QUARK AND STABLE MINIMUM [J].