Four-loop decoupling relations for the strong coupling -: art. no. 051

被引：218

作者：

Schröder, Y

Steinhauser, M

机构：

[1] Univ Bielefeld, Fak Phys, D-33501 Bielefeld, Germany

[2] Univ Karlsruhe, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2006年 / 01期

关键词：

QCD; NLO computations;

D O I：

10.1088/1126-6708/2006/01/051

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：

We compute the matching relation for the strong coupling constant within the framework of QCD up to four-loop order. This allows a consistent five-loop running (once the beta function is available to this order) taking into account threshold effects. As a side product we obtain the effective coupling of a Higgs boson to gluons with five-loop accuracy.

引用

页码：1289 / 1300

页数：12

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