BOUNDS ON G(5)(Z) FROM PRECISION LEP MEASUREMENTS

被引：14

作者：

DAWSON, S ^{[1
]}

VALENCIA, G ^{[1
]}

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011

来源：

PHYSICS LETTERS B | 1994年 / 333卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(94)91031-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The parity violating but CP conserving anomalous three-gauge-boson coupling g5Z induces a universal contribution to the left-handed coupling of the Z boson to fermions. We find that the LEP measurements of the partial Z widths and lepton forward-backward asymmetries are sufficiently precise to place a bound of order \g5Z\ less than approximately 4%. This bound is significantly better than what can be obtained at present from rare K and B meson decays.

引用

页码：207 / 211

页数：5

共 13 条

[1] ELECTROWEAK CHIRAL LANGRANGIAN AND NEW PRECISION-MEASUREMENTS [J].