Friday, June 21, 2013

1306.4783 (Wen-Mei Guo et al.)

Model dependence of isospin sensitive observables at high densities    [PDF]

Wen-Mei Guo, Gao-Chan Yong, Yongjia Wang, Qingfeng Li, Hongfei Zhang, Wei Zuo
Within two different frameworks of isospin-related transport model, i.e., Boltzmann-Uehling-Uhlenbeck (IBUU04) and Ultrarelativistic Quantum Molecular Dynamics (UrQMD) transport models, sensitive probes of nuclear symmetry energy are simulated and compared. It is shown that neutron to proton ratio of free nucleons, pi-/pi+ ratio as well as isospin-sensitive transverse and elliptic flows given by the two transport models with their "best settings", all have obvious differences. These studies may help us to pin down the density dependence of nuclear symmetry energy more scientifically.
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