Electron-Positron Pair Production by an Electron in a Magnetic Field Near the Process Threshold

Abstract

The electron-positron pair production by an electron in a strong magnetic field near the process threshold is considered. The process is shown to be more probable if the spin of the initial electron is oriented along the field. In this case, the probability of the process is $\sim 10^{13}{s}^{-1}$ when the magnetic field strength is $H=4\cdot 10^{12}$ G.

Comments: 5 pages, 3 figures, 1 table