Electroproduction of electron-positron pair in a medium

TL;DR

This paper analyzes electron-positron pair creation by high-energy electrons in a medium, developing a new equivalent photons method that accounts for multiple scattering effects, and calculates spectral distributions including Coulomb corrections.

Contribution

A new formulation of the equivalent photons method that incorporates multiple scattering effects in electron-positron pair production in media.

Findings

Multiple scattering significantly influences pair production spectra.

The developed method effectively studies multiple scattering effects.

Coulomb corrections are incorporated into spectral calculations.

Abstract

The process of electron-positron pair creation by a high-energy electron in a medium is analyzed. The spectral distribution over energies of created particles is calculated for the direct and cascade mechanisms of the process. The Coulomb corrections are included. The new formulation of the equivalent photons method is developed which takes into account the influence of multiple scattering. It is shown the effects of multiple scattering can be quite effectively studied in the process under consideration.