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

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arxiv 1807.10697 v1 pith:53P5G3BM submitted 2018-07-27 hep-th hep-ph

James P. Edwards , Adolfo Huet , Christian Schubert This is my paper · ORCID
classification hep-thhep-ph
keywords amplitudescontributionslagrangianslimitreduciblethosetwo-loopaddition
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abstract

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.

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Cited by 1 Pith paper

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  1. Worldline Modeling of Ultra-Intense Lasers for N-photon Scattering Processes

    hep-ph 2025-07 conditional novelty 3.0 of 10

    Compact worldline 'master formulae' for arbitrary-N photon scattering in strong-field backgrounds are presented, but the derivations are largely deferred to the authors' own prior and companion papers.

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