Resonances in positron scattering on a supercritical nucleus and spontaneous production of $e^{+}{e}^{-}$ pairs

S. I. Godunov, B. Machet, M. I. Vysotsky

We re-examine the physics of supercritical nuclei, specially focusing on the scattering phase ${\delta }_{\varkappa }$ and its dependence on the energy $\epsilon$ of the diving electroni…