Transverse flows in charge asymmetric collisions

Collective flows in heavy ion collisions are shown to be largely dependent on the symmetry term of the nuclear Equation of State (EOS). A comparison w ith data leads to a clear evidence for a strong increase of the repulsion o f the symmetry term above normal density. This will also imply noticeable d ifferences in the neutron and proton components to be seen in the transvers e flows of light ions. (C) 1999 Published by Elsevier Science B.V. All righ ts reserved.