On the effect of time-dependent inhomogeneous magnetic fields in electron-positron pair production
arXiv:1512.06668 · doi:10.1016/j.physletb.2016.03.027
Abstract
Electron-positron pair production in space- and time-dependent electromagnetic fields is investigated. Especially, the influence of a time-dependent, inhomogeneous magnetic field on the particle momenta and the total particle yield is analyzed for the first time. The role of the Lorentz invariant $\mathbf{E}^2 - \mathbf{B}^2$, including its sign and local values, in the pair creation process is emphasized.
6 pages, 5 figures; Revised version: some improvements, references updated; version will be published in Phys. Lett. B