THE RATIO R OF HADRONIC AND ELECTRONIC Z WIDTHS AND THE STRONG-COUPLING CONSTANT ALPHA-S

被引：22
|
作者：
HEBBEKER, T
MARTINEZ, M
PASSARINO, G
QUAST, G
机构：
[1] INST FIS ALTES ENERGIES,BARCELONA,SPAIN
[2] INFN,SEZ TORINO,TURIN,ITALY
[3] UNIV MAINZ,W-6500 MAINZ,GERMANY
[4] UNIV TURIN,DIPARTIMENTO FIS TEOR,I-10124 TURIN,ITALY
来源：
PHYSICS LETTERS B | 1994年 / 331卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(94)90958-X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We review the relation between the ratio of hadronic and electronic Z widths, R = GAMMA(Z --> qqBAR)/GAMMA(Z --> e+e-), and the strong coupling constant at the Z mass, alpha(s). The theoretical uncertainty of alpha(s) derived from R is estimated to be DELTAalpha(s) = +/-0.002(electroweak) +/- 0.002(QCD)-0.003(+0.004) (m(top), m(Higgs)).
引用
收藏
页码：165 / 170
页数：6
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