  The collective dynamics of low energy fission in 238U is described within a
time-dependent formalism based on the Gaussian Overlap Approximation of the
time-dependent Generator Coordinate Method. The intrinsic deformed
configurations of the nucleus are determined from the self-consistent
Hartree-Fock-Bogoliubov procedure employing the effective force D1S with
constraints on the quadrupole and octupole moments. Fragment kinetic energy and
mass distributions are calculated and compared with experimental evaluations.
The effect of the collective dynamics along the fission paths and the influence
of initial conditions on these distributions are analyzed and discussed.
