Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-01-10
Nucl.Phys. A722 (2003) 209-214
Physics
Nuclear Physics
Nuclear Theory
Invited talk at the Int. Symposium on Phys. of Unstable Nuclei, Halong bay, Vietnam, Nov. 20-25, 2002. 6 pages to appear in th
Scientific paper
10.1016/S0375-9474(03)01360-5
Central collisions induced by high energy radioactive beams can be used as a novel means to obtain crucial information about the high density ({\rm HD}) behaviour of nuclear symmetry energy. This information is critical for understanding several key issues in astrophysics. Within an isospin-dependent hadronic transport model using phenomenological equations of state ({\rm EOS}) for dense neutron-rich matter, we investigate several experimental probes of the HD behavior of nuclear symmetry energy, such as, the $\pi^-$ to $\pi^+$ ratio, neutron-proton differential flow and its excitation function. Measurements of these observables will provide the first terrestrial data to constrain stringently the HD behaviour of nuclear symmetry energy and thus also the {\rm EOS} of dense neutron-rich matter.
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