QCD CORRECTIONS TO THE Z-DECAY RATE

被引：142

作者：

KNIEHL, BA

KUHN, JH

机构：

[1] Max-Planck-Institut für Physik, Astrophysik-Werner-Heisenberg-Institut für Physik, Munich

来源：

NUCLEAR PHYSICS B | 1990年 / 329卷 / 03期

关键词：

D O I：

10.1016/0550-3213(90)90070-T

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Corrections to the Z decay rate are calculated in perturbative QCD. The axial vector current induced rate differs in order αs2 from the rates induced by the vector current and the electromagnetic current respectively. The additional term is calculated analytically. It is shown that the dominant O(αs3) correction is odentical with the correction for R = σhad/σpoint at low energies and the (small) differences are estimated. © 1990.

引用

页码：547 / 573

页数：27

共 24 条

[1] AXIAL-VECTOR VERTEX IN SPINOR ELECTRODYNAMICS [J].