Modeling Timescale of Equilibration in Dinuclear Systems

The break-up and N/Z equilibration processes of dinuclear systems can be utilized to place constraints on the density dependence of the symmetry energy. In semi-peripheral heavy-ion collisions, excited projectile-like fragments can be formed which decay through binary breakup. The rotation of this binary system can be used to probe the timescale of the N/Z equilibration of the system. A previous experiment performed by the Indiana University research group using this approach has shown that initial neutron gradients can have an effect on the equilibration process [1]. Simulations using the Constrained Molecular Dynamics (CoMD) model have been executed and compared to experimental data. The comparison will allow for a better understanding of the timescale of equilibration. \\[4pt] [1] K. Brown et. al. Phys. Rev. C \textbf{87}, 061601 (2013).