Four-loop moments of the heavy quark vacuum polarization function in perturbative QCD

被引：93
作者：
Chetyrkin, K. G.
Kuehn, J. H.
Sturm, C.
机构：
[1] Univ Karlsruhe, Inst Theroet Teilchenphys, D-76128 Karlsruhe, Germany
[2] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy
[3] Ist Nazl Fis Nucl, Sez Torino, Turin, Italy
来源：
EUROPEAN PHYSICAL JOURNAL C | 2006年 / 48卷 / 01期
关键词：
D O I：
10.1140/epjc/s2006-02610-y
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：
New results at four-loop order in perturbative QCD for the first two Taylor coefficients of the heavy quark vacuum polarization function are presented. They can be used to perform a precise determination of the charm- and bottom-quark mass. Implications for the value of the quark masses are briefly discussed.
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收藏
页码：107 / 110
页数：4
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