Dependence of isoscaling on the nuclear equations of state

The dependence of nuclear isoscaling on the stiffness of the equation of state (EOS) was studied using molecular dynamics simulations.~ Reactions of ${ }^{40}Ca+{ }^{40}Ca$,${ }^{48}Ca+{ }^{48}Ca$~and ${ }^{52}Ca+{ }^{52}Ca$~at beam energies ranging from 20 MeV/A to 85 MeV/A were simulated using the Pandharipande EOS of 535 MeV and compared to previous results obtained with the EOS of 250 MeV. ~The analysis included a study of the time evolution of this effect and the estimation of the isoscaling parameters $\alpha ,\beta $. ~Preliminary results indicate that isoscaling exists at all energies and at all times starting from the early primary isotope distributions all the way to 5000${fm} \mathord{\left/ {\vphantom {{fm} c}} \right. \kern-\nulldelimiterspace} c$. ~The $\alpha ,\beta $~were found to vary substantially from values obtained with the soft EOS.