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arXiv 1807.10697hep-thhep-ph
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关于QED N光子振幅的低能极限:第二部分

On the low-energy limit of the QED N-photon amplitudes: part 2

James P. Edwards, Adolfo Huet, Christian Schubert

摘要:

在最近的工作中,Gies和Karbstein发现,标量和旋量QED的双圈欧拉-海森堡拉格朗日量除了研究得很好的不可约贡献外,还有非零的可约贡献。这使以前的应用程序,这些拉格朗日计算的双回路$N$ -光子振幅的低能量限制。在这里,我们计算由于可约贡献对这些振幅的修正。

英文摘要:

In recent work, Gies and Karbstein have discovered that the two-loop Euler-Heisenberg Lagrangians for scalar and spinor QED have non-vanishing reducible contributions in addition to the well-studied irreducible ones. This invalidates previous applications of those Lagrangians to the computation of the two-loop $N$-photon amplitudes in the low energy limit. Here we compute the corrections to those amplitudes due to the reducible contributions.

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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