OPTIMIZED PERTURBATION-THEORY AND ON-SHELL RENORMALIZATION IN QED AND QCD

被引：16

作者：

FIELD, JH

机构：

[1] Département de Physique Nucléaire et Corpusculaire, Université de Genève, CH-12II, Genève 4

来源：

ANNALS OF PHYSICS | 1993年 / 226卷 / 02期

关键词：

D O I：

10.1006/aphy.1993.1068

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Optimised perturbation theory (OPT) is tested for a range of different physical quantities in QED and QCD. Successful applications of OPT in hard QCD processes give values of 1-2 GeV/c for the renormalisation scale μR. An effective on-shell scheme (OS) is proposed for QCD by fixing μR at ∼1.9 GeV within the MS renormalisation convention. The parameters of QCD in such a scheme are determined and the phenomenology of further tests is discussed. Heavy quark threshold effects in αS(Q2) are described by the QCD analogue of a well-known QED formula. © 1993 Academic Press, Inc.

引用

页码：209 / 247

页数：39

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