  Production cross-sections of heavy neutron-rich isotopes are calculated by
employing quantal transport description in
${}^{250}\text{Cf}+{}^{232}\text{Th}$ collisions. This quantal transport
description is based on the stochastic mean-field (SMF) approach, and it
provides a microscopic approach beyond time-dependent Hartree-Fock (TDHF)
theory to include mean-field fluctuations. De-excitation of primary fragments
is determined by employing the statistical GEMINI++ code. Calculations provide
predictions for production cross-sections of neutron rich transfermium isotopes
without any adjustable parameters.
