Isospin dependence of collective flow in heavy-ion collisions at intermediate energies.
نویسندگان
چکیده
Within the framework of an isospin-dependent Boltzmann-Uehling-Uhlenbeck (BUU) model using initial proton and neutron densities calculated from the nonlinear relativistic mean-field (RMF) theory, we compare the strength of transverse collective flow in reactions Ca + Fe and Cr + Ni, which have the same mass number but different neutron/proton ratios. The neutron-rich system (Ca+Fe) is found to show significantly stronger negative deflection and consequently has a higher balance energy, especially in peripheral collisions.
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ورودعنوان ژورنال:
- Physical review letters
دوره 76 24 شماره
صفحات -
تاریخ انتشار 1996