Integral characteristics of bremsstrahlung and pair photoproduction in a medium

Abstract

The bremsstrahlung of an electron and $e^{-}{e}^{+}$-pair creation by a photon in a medium is considered in high-energy region, where influence of the multiple scattering on the processes (the Landau-Pomeranchuk-Migdal (LPM) effect) becomes essential. The integral characteristics: the radiation length and the total probability of radiation and pair photoproduction are analyzed under influence of the LPM effect.

Comments: Talk given at the Quantum Aspects of Beam Physics 2000 Workshop, Capri, Italy, Oct.2000, 10 pages, 2 figures