TAU-E AND TAU-MU UNIVERSALITY FROM TAU-]PI-NU DECAYS

被引：2
|
作者：
BRYMAN, DA
机构：
[1] TRIUMF, 4004 Wesbrook Mall, Vancouver
来源：
PHYSICAL REVIEW D | 1992年 / 46卷 / 03期
关键词：
D O I：
10.1103/PhysRevD.46.1064
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
It is pointed out that a comparison of measurements of tau --> pi-upsilon decays with pi --> mu-upsilon and pi --> e-upsilon decays can be used to obtain accurate measures of tau-mu and tau-e universality. From current data on these processes it is found that the ratios of the electroweak charged-current couplings of the tau to those of the muon and electron are g(tau)/g(mu) = 0.983 +/- 0.025 and g(tau)/g(e) = 0.986 +/- 0.026, in agreement with the hypothesis of universality.
引用
收藏
页码：1064 / 1066
页数：3
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