SEMIINCLUSIVE TAU-DECAYS INVOLVING THE VECTOR OR AXIAL-VECTOR HADRONIC CURRENTS

被引：51
作者：
NARISON, S
PICH, A
机构：
[1] UNIV HEIDELBERG,INST THEORET PHYS,W-6900 HEIDELBERG,GERMANY
[2] CERN,CH-1211 GENEVA 23,SWITZERLAND
来源：
PHYSICS LETTERS B | 1993年 / 304卷 / 3-4期
关键词：
D O I：
10.1016/0370-2693(93)90309-6
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The theoretical predictions for the semi-inclusive hadronic tau decays into an even/odd number of pions (and kaons) are up-dated, and compared with the corresponding sums of exclusive tau-decay modes. The value of alpha(s)(M(tau)2) obtained from these semi-inclusive widths agree with the one obtained from the total inclusive hadronic width. The experimental e+ e- --> hadrons data are also used to perform additional tests in the vector sector. Using the e+ e- data and varying the value of M(tau), we show that there is a good agreement among the results obtained at different mass scales.
引用
收藏
页码：359 / 365
页数：7
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