Evaluating the three-loop quark static potential

被引：6

作者：

Smirnov, Alexander V. ^{[2
,3
]}

Smirnov, Vladimir A. ^{[1
,3
]}

Steinhauser, Matthias ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119992, Russia

[2] Moscow MV Lomonosov State Univ, Res Ctr Comp Sci, Moscow 119992, Russia

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

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2008年 / 183卷

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1016/j.nuclphysbps.2008.09.122

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：

This is a status report of the evaluation of the three-loop corrections to the static QCD potential of a heavy quark and an antiquark. The families of Feymnan integrals that appear in the evaluation are described. To reduce any integral of the families to master integrals we solve integration-by-parts relations by the algorithm called FIRE. To evaluate the corresponding master integrals we apply the Mellin-Barnes technique. First results are presented: the coefficients n(l)(3) and n(l)(2) where n(l) is the number of light quarks.

引用

页码：308 / 312

页数：5

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