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Influence of a medium on pair photoproduction and bremsstrahlung

V. N. Baier·V. M. Katkov
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Abstract

The creation of electron-positron pair by a photon and the bremsstrahlung of an electron in a medium are considered in high-energy region, where influence of the multiple scattering on the processes (the Landau-Pomeranchuk-Migdal (LPM) effect) becomes essential. The pair photoproduction probability is calculated with an accuracy up to the "next to leading logarithm". The integral characteristics: the radiation length and the total probability of pair photoproduction are analyzed under influence of the LPM effect, and the asymptotic expansions of these characteristics are derived.

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V. N. Baier, V. M. Katkov. 2000-02-09. Influence of a medium on pair photoproduction and bremsstrahlung. https://doi.org/10.1103/physrevd.62.036008

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