  We derive the pair-production probability in a constant electric field in
Rindler coordinates in a quasi-classical approximation. Our result is different
from the pair-production probability in an inertial frame (Schwinger formula).
In particular, it exhibits non-trivial dependence on rapidity and deviation
from Gaussian behavior at small transverse momenta. Our results can be
important for analysis of particle production in heavy-ion collisions.
