The Landau-Pomeranchuk-Migdal effect in QED
R. Baier, Yu. L. Dokshitzer, A. H. Mueller, S. Peigne, D. Schiff
Abstract
The calculation of the radiative energy loss encountered by a fast charged particle which undergoes multiple scattering is being investigated. A detailed derivation of the Landau-Pomeranchuk-Migdal coherent effect in QED is given, focusing on the specific feature of the Coulomb interaction. As a result the radiation intensity per unit length in the coherent regime is shown to be proportional to ω for a photon energy ω times a logarithmic enhancement which is determined exactly.
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