GENERATION NONUNIVERSALITY AND PRECISION ELECTROWEAK MEASUREMENTS

被引：21

作者：

LI, XY

MA, E

机构：

[1] CHINESE ACAD SCI, INST THEORET PHYS, BEIJING 100080, PEOPLES R CHINA

[2] UNIV CALIF RIVERSIDE, DEPT PHYS, RIVERSIDE, CA 92521 USA

来源：

PHYSICAL REVIEW D | 1992年 / 46卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.46.R1905

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A gauge model of generation nonuniversality proposed 10 years ago predicted that the tau-lifetime should be longer than what it would be in the standard model. This has been confirmed by recent e+e-to Z data, although the statistical significance is only 2.3-sigma. We show that this model is also consistent with other precision electroweak measurements, and in particular it contributes negatively to the rho-parameter measured at the Z peak.

引用

页码：R1905 / R1908

页数：4

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