Cross section of e+e- annihilation into hadrons of order αs4n2f in perturbative QCD -: art. no. 012001

被引：44

作者：

Baikov, PA ^{[1
]}

Chetyrkin, KG

Kühn, JH

机构：

[1] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119899, Russia

[2] Univ Freiburg, Fak Phys, D-79104 Freiburg, Germany

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

[4] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.88.012001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first genuine QCD five-loop calculation of the vacuum polarization functions: analytical terms of order alpha(s)(4)n(f)(2) to the absorptive parts of vector and scalar correlators. These corrections form an important gauge-invariant subset of the full O(alpha(s)(4)) correction to e(+)e(-) annihilation into hadrons and the Higgs decay rate into hadrons, respectively. They discriminate between different widely used estimates of the full result.

引用

页数：4

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