Isospin dependence of the balance energy
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abstract
The energy at which collective transverse flow in the reaction plane disappears, the balance energy Ebal, is found to depend on the isospin of the system using the reactions 58Li+58Fe58Ni+58Ni. The more neutron-rich system exhibits higher balance energies for all measured impact parameters, in agreement with the predictions of a transport model which incorporates an isospin dependent mean field and isospin dependent in-medium nucleon-nucleon cross sections. 1997 American Physical Society.