The SM prediction of g-2 of the muon

被引：0
|
作者：
Hagiwara, K [1 ]
Martin, AD [1 ]
Nomura, D [1 ]
Teubner, T [1 ]
机构：
[1] KEK, Theory Grp, Tsukuba, Ibaraki 3050801, Japan
来源：
ICHEP 2002, PROCEEDINGS | 2003年
关键词：
D O I：
10.1016/S0920-5632(02)02090-X
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We calculate (g - 2)/2 of the muon, paying particular attention to the hadronic vacuum polarisation contribution and its uncertainties. The different data sets for each e(+)e(-) exclusive channel (as well as for the inclusive e(+)e(-) --> hadrons channel) have been combined in order to produce the optimum estimate of the cross sections and their uncertainties. QCD sum rules are evaluated in order to resolve an apparent discrepancy between the inclusive data and the sum of the exclusive channels. We conclude a(mu)(had,LO) = (683.1 +/- 5.9(exp) +/- 2.0(rad)) x 10(-10) which, when combined with the other contributions to (g - 2)/2, is about 3sigma below the present world average measurement as reported at this conference.
引用
收藏
页码：216 / 219
页数：4
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