QCD MATCHING CONDITIONS AT THRESHOLDS

被引：65

作者：

RODRIGO, G ^{[1
]}

SANTAMARIA, A ^{[1
]}

机构：

[1] CERN,DIV TH,CH-1211 GENEVA 23,SWITZERLAND

来源：

PHYSICS LETTERS B | 1993年 / 313卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(93)90016-B

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The use of MS-like renormalization schemes in QCD requires an implementation of nontrivial matching conditions across thresholds, a fact often overlooked in the literature. We shortly review the use of these matching conditions in QCD and check explicitly that the prediction for alpha(s)(M(Z)), obtained by running the strong coupling constant from the M(tau) scale, does not substantially depend on the exact value of the matching point chosen in crossing the b-quark threshold when the appropriate matching conditions are taken into account.

引用

页码：441 / 446

页数：6

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