Probing the nuclear symmetry energy with heavy-ion reactions induced by neutron-rich nuclei

• DOI: 10.1007/s11467-007-0037-0
• Publication Date: 2007-09-11T07:20:52Z
• Authors: Lie-wen Chen; Che Ming Ko; Bao-an Li; Gao-chan Yong
• Keywords: Nuclear Theory (nucl-th); Nuclear Theory; Astrophysics (astro-ph); 0103 physical sciences; FOS: Physical sciences; Nuclear Experiment (nucl-ex); Astrophysics; Nuclear Experiment; 01 natural sciences

Heavy-ion reactions induced by neutron-rich nuclei provide a unique means to investigate the equation of state of isospin-asymmetric nuclear matter, especially the density dependence of the nuclear symmetry energy. In particular, recent analyses of the isospin diffusion data in heavy-ion reactions have already put a stringent constraint on the nuclear symmetry energy around the nuclear matter saturation density. We review this exciting result and discuss its implications on nuclear effective interactions and the neutron skin thickness of heavy nuclei. In addition, we also review the theoretical progress on probing the high density behaviors of the nuclear symmetry energy in heavy-ion reactions induced by high energy radioactive beams.<br/>29 pages, 35 figures. Invited review article for Frontiers of Physics in China<br/>