Probing the density dependence of symmetry energy at subsaturation density with HICs

Details Probing the density dependence of symmetry energy at subsaturation density with HICs Probing the density dependence of symmetry energy at subsaturation density with HICs

2009-11-09

arxiv.org/abs/0911.1606v1

Physics

Nuclear Physics

Nuclear Theory

IWND2009 proceeding

Scientific paper

The reaction mechanism of the central collisions and peripheral collisions for $^{112,124}Sn+^{112,124}Sn$ at $E/A=50MeV$ is investigated within the framework of the Improved Quantum Molecular Dynamics model. The results show that multifragmentation process is an important mechanism at this energy region, and the influence of the cluster emission on the double n/p ratios and the isospin transport ratio are important. Furthermore, three observables, double n/p ratios, isospin diffusion and the rapidity distribution of the ratio $R_{7}$ for $^{112,124}Sn+^{112,124}Sn$ at E/A=50MeV are analyzed with the Improved Quantum Molecular Dynamics model. The results show that these three observables are sensitive to the density dependence of the symmetry energy. By comparing the calculation results to the data, the consistent constraint on the density dependence of the symmetry energy from these three observables is obtained.

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