Abstract
We study multinucleon transfer in the $^{48}\mathrm{Ca}+{}^{197}\mathrm{Au}$ reaction at a beam energy of 400 MeV within the dinuclear system model. Nucleon exchange and competing DNS separation are described by a master equation with transition rates determined by the level densities of the dinuclear configurations. Calculations with and without imposed $N/Z$ equilibrium give similar overall charge distributions, although differences remain in individual channels. When compared with the experimentally extracted DIC-like charge component, both treatments overpopulate the region near $Z=20$ and underpopulate more distant transfer channels. The calculated primary-fragment yields are concentrated near the entrance-channel partitions, with a pronounced maximum at $Z=20$ in the $N=28$ isotonic distribution. For the system and parameters considered, the overall charge distribution is only weakly sensitive to the $N/Z$ equilibrium assumption. Isotope-resolved comparisons and a treatment of secondary decay are needed to assess the accuracy of the predicted final-fragment yields.