Comparison of heavy-ion transport simulations: Mean-field dynamics in a box

Within the transport model evaluation project (TMEP) of simulations for heavy-ion collisions, mean-field response is examined here. Specifically, zero-sound propagation considered neutron-proton symmetric matter enclosed in a periodic box, at zero temperature and around normal density. The results several codes belonging to two families (BUU-like QMD-like) are compared among each other exact calculations. For BUU-like codes, employing test particle method, depend on combination number particles spread profile functions that weight integration over space. These parameters can be properly adapted give good reproduction analytical features. QMD-like using molecular dynamics methods, characterized by large damping effects, attributable fluctuations inherent their phase-space representation. Moreover, given nuclear effective interaction, they generally lead slower density oscillations, as codes. latter problem mitigated more recent lattice formulation some QMD significance these description real collisions discussed.9 MoreReceived 31 March 2021Accepted 16 July 2021DOI:https://doi.org/10.1103/PhysRevC.104.024603©2021 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasLow & intermediate energy reactionsModels methods reactionsNuclear Physics