arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0901.0306hep-ph
收藏

强子光-光散射对μ子反常磁矩的贡献

Hadronic Light-by-Light Scattering Contribution to the Muon Anomalous Magnetic Moment

Joaquim Prades, Eduardo de Rafael, Arkady Vainshtein

摘要:

本文综述了强子光-光散射对μ子反常磁矩贡献的理论计算现状。讨论了不同的方法和相关问题,如OPE约束和手征对称性的大破缺。结合不同模型的结果与受过教育的猜测的错误,我们来估计$$a^{\rm HLbL}=(10.5\pm 2.6)\times 10^{-10}.$$的文本准备作为贡献{ \it格拉斯哥白皮书的μ子异常磁矩的现状}。

英文摘要:

We review the current status of theoretical calculations of the hadronic light-by-light scattering contribution to the muon anomalous magnetic moment. Different approaches and related issues such as OPE constraints and large breaking of chiral symmetry are discussed. Combining results of different models with educated guesses on the errors we come to the estimate $$a^{\rm HLbL}=(10.5\pm 2.6)\times 10^{-10}.$$ The text is prepared as a contribution to the {\it Glasgow White Paper on the present status of the Muon Anomalous Magnetic Moment}.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑