Isospin effects on squeeze-out flow in heavy-ion collisions
Abstract
The squeeze-out flow in reactions of ^{124}Sn + ^{124}Sn and ^{124}Ba + ^{124}Ba at different incident energies for different impact parameters is investigated by means of an isospin-dependent quantum molecular dynamics model. For the first time, it is found that the more neutron-rich system (% ^{124}Sn + ^{124}Sn) exhibits weaker squeeze-out flow. This isospin dependence of the squeeze-out flow is shown to mainly result from the isospin dependence of nucleon-nucleon cross section and the symmetry energy.