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Summation over Soft-Photon Contributions

  • Paul Urban

Abstract

This chapter represents an intermediate step between classical theory and quantumelectrodynamical treatment. Soft and hard photons will be separated in a rigorous way; the contribution of soft photons (classical current) as a whole can be taken into account as in the previous chapter (here we shall employ the derivation by means of the perturbation expansion of the Smatrix), the application of the rules of QED to the hard-photon contribution introduces no principal difficulties (infrared divergences).

Keywords

Matrix Element Infrared Divergence Soft Photon Hard Photon Classical Current 
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Copyright information

© Springer-Verlag/Wien 1970

Authors and Affiliations

  • Paul Urban
    • 1
  1. 1.Institute of Theoretical PhysicsUniversity of GrazGrazAustria

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