  We use the low density approximation within the kinetic theory approach to
vacuum creation of an e-e+ pair plasma (EPPP) in a strong laser field in order
to investigate the dependence of the observed EPPP on the form and parameters
of a single laser pulse. The EPPP distribution function is calculated for an
arbitrary time dependence of the electric field in the multiphoton domain
(adiabaticity parameter gamma >> 1). The dependence on the field strength, the
form and spectrum of the field pulse is investigated on the basis both
analytical and numerical methods. The obtained results can be useful for
examining some observable secondary processes associated with the dynamical
Schwinger effect.
