UNIVERSALITY-BREAKING EFFECTS IN LEPTONIC Z-DECAYS

被引：52
|
作者：
BERNABEU, J
KORNER, JG
PILAFTSIS, A
SCHILCHER, K
机构：
[1] UNIV MAINZ,INST PHYS,W-6500 MAINZ,GERMANY
[2] UNIV VALENCIA,CSIC,INST PHYS CORPUSCULAR,E-46100 BURJASSOT,SPAIN
来源：
PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 17期
关键词：
D O I：
10.1103/PhysRevLett.71.2695
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We analyze the possibility of universality violation in diagonal leptonic decays of the Z boson, in the context of interfamily ''seesaw'' models. In a minimal extension of the standard model with right-handed neutrino fields, we find that universality-breaking effects increase quadratically with the heavy Majorana neutrino mass and may be observed in the current experiments at the CERN e+e- collider LEP.
引用
收藏
页码：2695 / 2698
页数：4
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