System size and beam energy effects on probing the high-density behavior of nuclear symmetry energy with pion ratio | |
Zhang, Ming1; Xiao, Zhi-Gang1; Li, Bao-An2; Chen, Lie-Wen3; Yong, Gao-Chen2,4; Zhu, Shen-Jiang1 | |
2010-03 | |
卷号 | 834 |
期号 | 1-4 |
DOI | 10.1016/j.nuclphysa.2010.01.093 |
页码 | 567C-570C |
英文摘要 | Based on the isospin-and momentum-dependent hadronic transport model IBUU04, we have investigated the pi(-)/pi(+) ratio in the following three reactions: (48)Ca+(48)Ca, (124)Sn +(124)Sn and (197)Au+(197)Au with nearly the same isospin asymmetry but different masses, at the bombarding energies from 0.25 to 0.6 A GeV. It is shown that the sensitivity of probing the E(sym) (rho) with pi(-)/pi(+) increases with increasing the system size or decreasing the beam energy, showing a correlation to the degree of isospin fractionation. Therefore, with a given isospin asymmetry, heavier system at energies near the pion threshold is preferential to study the behavior Of nuclear symmetry energy at supra-saturation densities. |
会议录 | NUCLEAR PHYSICS A
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会议录出版者 | ELSEVIER SCIENCE BV |
会议录出版地 | PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
语种 | 英语 |
WOS研究方向 | Physics |
WOS记录号 | WOS:000275930800145 |
内容类型 | 会议论文 |
源URL | [http://119.78.100.186/handle/113462/57364] ![]() |
专题 | 中国科学院近代物理研究所 |
通讯作者 | Zhang, Ming |
作者单位 | 1.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 2.Texas A&M Univ, Dept Phys & Astron, Commerce, TX 75429 USA 3.Shanghai Jiao Tong Univ, Inst Theoret Phys, Shanghai 200240, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Ming,Xiao, Zhi-Gang,Li, Bao-An,et al. System size and beam energy effects on probing the high-density behavior of nuclear symmetry energy with pion ratio[C]. 见:. |
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