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

页码：165 / 170

页数：6

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