Correlation and isospin dynamics of participant-spectator matter in neutron-rich colliding nuclei at 50 MeVucleon

摘要

The sensitivities of isospin asymmetry and collision geometry dependencies of participant (overlapping region)-nspectator (quasiprojectile and quasitarget region) matter towards the symmetry energy using the isospin quantumnmolecular dynamical model are explored. Particularly, the difference of the number of nucleons in the overlappingnzone to the quasi-projectile-target matter is found to be quite sensitive to the symmetry energy at semiperipheralngeometries compared to the individual yield. It gives us a clue that this quantity can be used as a measure ofnisospin migration. Further, the yield of neutrons (charge of the second-largest fragment) is provided as a tool fornoverlapping region (quasi-projectile-target) matter to check the sensitivity of the above-mentioned observablentowards the symmetry energy experimentally.