High-energy $e^{+}{e}^{-}$ photoproduction cross section close to the end of spectrum

Abstract

We consider the cross section of electron-positron pair production by a high-energy photon in a strong Coulomb field close to the end of electron or positron spectrum. We show that the cross section essentially differs from the result obtained in the Born approximation as well as form the result which takes into account the Coulomb corrections under assumption that both electron and positron are ultrarelativistic. The cross section of bremsstrahlung in a strong Coulomb field by a high-energy electron is also obtained in the region where the final electron is not ultrarelativistic.

20 pages, 4 figures

Cited by in corpus (4)

• Charge asymmetry in the differential cross section of high-energy bremsstrahlung in the field of a heavy atom
• High-energy $e^{+}{e}^{-}$ photoproduction in the field of a heavy atom accompanied by bremsstrahlung
• Double bremsstrahlung from high-energy electron in the atomic field
• Charge asymmetry in electron/positron energy loss in nuclear Bremsstrahlung