Abstract
Current conservation is a vital condition in electrodynamics. We review the literature concerning the ways to ensure that the formalism used in calculating amplitudes for the scattering of charged particles is in compliance with current conservation. For the case of electron scattering off a scalar and a spin-1/2 target as well as Compton scattering on a scalar target, we present some novelties besides reviewing the literature.
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This article belongs to the special issue “30th anniversary of Few-Body Systems”.
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Bakker, B.L.G., Ji, CR. The Construction of Compton Tensors in Scalar QED. Few-Body Syst 58, 8 (2017). https://doi.org/10.1007/s00601-016-1172-3
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DOI: https://doi.org/10.1007/s00601-016-1172-3