Izvestiya of Saratov University.
ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)

pair creation

Pair Production in a Strong Electric Field with an Account of the Coulomb Interaction

In the framework of the Dirac model of vacuum the creation of е+е− pairs in a constant and uniform electric field with allowance Coulomb interaction between е+ and е− is considered. The transmission coefficient via the energy gap deformed by external field and the electric fields of particles is calculated in the semiclassical approximation. The Sauter exponential factor is modified by the exactly calculated function G(y) accounting Coulomb interaction of particles and changes in the shape of the potential barrier.