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arXiv 1411.7876hep-phhep-latnucl-th
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μ子g-2:强子光-光散射的Dyson-Schwinger状态

The muon g-2: Dyson-Schwinger status on hadronic light-by-light scattering

Gernot Eichmann, Christian S. Fischer, Walter Heupel, Richard Williams

摘要:

我们给出了一个状态报告的强子光的光散射贡献的μ子的反常磁矩从戴森Schwinger方法。我们讨论了新的,模型无关的光的光振幅的性质:我们给出了它的协变分解的电磁规范不变性和玻色对称性,我们确定了相关的运动学区域下的积分探测。在夸克水平上的振幅的分解和它的各种图表的重要性进行了讨论和相关的模型方法。

英文摘要:

We give a status report on the hadronic light-by-light scattering contribution to the muon's anomalous magnetic moment from the Dyson-Schwinger approach. We discuss novel, model-independent properties of the light-by-light amplitude: we give its covariant decomposition in view of electromagnetic gauge invariance and Bose symmetry, and we identify the relevant kinematic regions that are probed under the integral. The decomposition of the amplitude at the quark level and the importance of its various diagrams are discussed and related to model approaches.

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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