Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order
Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order
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DOI：
10.1016/j.physletb.2014.05.043
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发表时间：
2014-06-27
影响因子：
4.4
通讯作者：
Steinhauser, Matthias
中科院分区：
文献类型：
--
作者：
Kurz, Alexander;Liu, Tao;Steinhauser, Matthias
我们计算了由光子真空极化产生的介子反常磁矩的倒数第二阶强子贡献。利用渐近展开技术计算了相应的三环核函数，得到了解析表达式。我们的最终结果a Mu(HAD)，(NNLO)=1.24+/-0.01×10(-10)，与目前的前级强子贡献的不确定度具有相同的数量级，因此应该包括在未来的分析中。(C)2014年提交人。爱思唯尔出版社出版。
We compute the next-to-next-to-leading order hadronic contribution to the muon anomalous magnetic moment originating from the photon vacuum polarization. The corresponding three-loop kernel functions are calculated using asymptotic expansion techniques which lead to analytic expressions. Our final result, a mu(had), (NNLO) = 1.24 +/- 0.01 x 10(-10), has the same order of magnitude as the current uncertainty of the leading order hadronic contribution and should thus be included in future analyses. (C) 2014 The Authors. Published by Elsevier B. V.