THE DOMINANT 2-LOOP ELECTROWEAK CONTRIBUTIONS TO THE ANOMALOUS MAGNETIC-MOMENT OF THE MUON

被引：115

作者：

KUKHTO, TV

KURAEV, EA

SCHILLER, A

SILAGADZE, ZK

机构：

[1] NOVOSIBIRSK NUCL PHYS,NOVOSIBIRSK 630090,USSR

[2] UNIV LEIPZIG,SEKT PHYS,LEIPZIG,GERMANY

来源：

NUCLEAR PHYSICS B | 1992年 / 371卷 / 03期

关键词：

D O I：

10.1016/0550-3213(92)90687-7

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 leading two-loop electroweak contributions to the muon anomalous magnetic moment are calculated in the standard model. The diagrams with logarithmically enhanced contributions are selected. We separately discuss the two-loop diagrams containing heavy vector bosons and photons without virtual fermion loops and with lepton loops. The correction is -42 x 10(-11) and reaches about 22% of the one-loop result. Estimating the uncertainty from non-logarithmic two-loop and higher-order pieces allows to improve the electroweak contribution in the moment to (153 +/- 5) x 10(-11).

引用

页码：567 / 596

页数：30

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