QCD ANALYSIS OF THE TAU-HADRONIC WIDTH

被引：539

作者：

BRAATEN, E

NARISON, S

PICH, A

机构：

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

[2] UNIV MONTPELLIER 2,PHYS MATH LAB,F-34060 MONTPELLIER,FRANCE

来源：

NUCLEAR PHYSICS B | 1992年 / 373卷 / 03期

关键词：

D O I：

10.1016/0550-3213(92)90267-F

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：

The total tau hadronic width can be accurately calculated using analyticity and the operator product expansion. The theoretical analysis of this observable is updated to include all available perturbative and non-perturbative corrections. Experimental measurements of tau-decay rates are used to determine with high precision the QCD running coupling constant at the scale of the tau-mass. The analysis is also used to study the present discrepancy between the experimental measurements of the leptonic branching fractions of the tau and its total lifetime.

引用

页码：581 / 612

页数：32

共 72 条

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