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arXiv 1104.4510hep-ph
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强子光-光散射对μ子磁异常的贡献:组分夸克环和QCD效应

Hadronic light-by-light scattering contribution to the muon magnetic anomaly: constituent quark loops and QCD effects

Radja Boughezal, Kirill Melnikov

摘要:

强子光-光散射对μ子反常磁矩的贡献可以通过计算组分夸克环来估计。这样的估计对组分夸克质量的数值非常敏感。这些都可以通过计算强子真空极化的μ子磁异常在同一模型中的贡献固定。在这封信中,我们证明了这个框架对一阶微扰QCD修正的稳定性。

英文摘要:

The hadronic light-by-light scattering contribution to the muon anomalous magnetic moment can be estimated by computing constituent quark loops. Such an estimate is very sensitive to the numerical values of the constituent quark masses. These can be fixed by computing the hadronic vacuum polarization contribution to the muon magnetic anomaly within the same model. In this Letter, we demonstrate the stability of this framework against first-order perturbative QCD corrections.

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。

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