Low-energy for photons and infrared divergences
Teoretičeskaâ i matematičeskaâ fizika, Tome 18 (1974) no. 1, pp. 51-55
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In an approach that is free of infrared divergences it is shown that the scattering amplitude of a charged particle with the additional emission of a soft photon of momentum $k$ is regular with respect to $k$ in the neighborhood of $k=0$.
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