MASS CORRECTIONS OF ORDER ALPHA(S)2M(B)2/M(Z)2 TO THE AXIAL Z-BOSON DECAY-RATE

被引：51

作者：

CHETYRKIN, KG

KUHN, JH

KWIATKOWSKI, A

机构：

[1] Institut für Theoretische Teilchenphysik, Universität Karlsruhe

来源：

PHYSICS LETTERS B | 1992年 / 282卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(92)90505-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

QCD corrections to the decay rate of the Z-boson are affected by the non-vanishing mass of the b-quark. Large logarithms of M(Z)2/m(b)2 are absorbed through the use of the running b-quark mass. We analytically calculate the next-to-leading corrections to the axial part of the hadronic Z-decay rate in the order alpha(s)2m(b)2/M(Z)2. The corrections are found to be remarkably small.

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页码：221 / 227

页数：7

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