Analysis of t-b-W and t-t-Z couplings from CLEO and LEP SLC data

被引：97

作者：

Larios, F

Pérez, MA

Yuan, CP

机构：

[1] CINVESTAV, Dept Fis Aplicada, Merida 97310, Yucatan, Mexico

[2] CINVESTAV, Dept Fis, Mexico City 07000, DF, Mexico

[3] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

来源：

PHYSICS LETTERS B | 1999年 / 457卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(99)00541-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We update the constraints on anomalous dimension four t-b-W and t-t-Z couplings by using CLEO b --> s gamma and LEP/SLC precision Zpole data. it is found that the data imposes very stringent bounds on them. Moreover,the 2 sigma pull from SM predictions of A(LR)(hadrons), A(b) and A(FB)(b) have little chance of being explained by the strongly constrained anomalous couplings. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：334 / 340

页数：7

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