Quantifying neutron-proton equilibration using molecular dynamics codes

Previous studies have quantified neutron-proton equilibration experimentally in dynamically deformed nuclei in heavy ion collisions (Jedele A. et al., Phys. Rev. Lett., 118 (2017) 062501; Rodriguez Manso A. et al., Phys. Rev. C, 95 (2017) 044604). The results showed the composition of the two heaviest fragments from the excited projectile-like fragment evolve exponentially with respect to its angle of rotation. Simulations using constrained molecular dynamics and anti-symmetrized molecular dynamics were utilized for different slope parameterizations to compare the experimental results. The results indicate better agreement with a softer interaction.