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题名: Effects of pion potential and nuclear symmetry energy on the pi(-)/pi(+) ratio in heavy-ion collisions at beam energies around the pion production threshold
作者: Guo, WM;  Yong, GC;  Liu, H;  Zuo, W
刊名: PHYSICAL REVIEW C
出版日期: 2015
卷号: 91, 期号:5, 页码:54616
学科分类: Physics
DOI: http://dx.doi.org/10.1103/PhysRevC.91.054616
通讯作者: Guo, WM (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
文章类型: Article
英文摘要: Within the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck (IBUU) transport model, we studied the effects of the pion potential and the symmetry energy on the pion production in central Au-197 + Au-197 collisions around the pion production threshold. It is found that the pion potential has opposite effects on the value of the pi(-)/pi(+) ratio at low and high pion energies. The effect of the pion potential on the total pi(-)/pi(+) ratio becomes larger in heavy-ion collisions at beam energies below the pion production threshold. At beam energies below the pion production threshold, with the pion potential, the effect of the symmetry energy on the pi(-)/pi(+) ratio becomes smaller compared with that above the pion production threshold.
类目[WOS]: Physics, Nuclear
关键词[WOS]: NEUTRON-STARS ;  ISOSPIN ;  PHYSICS ;  ATOMS
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11375239, 11435014, 11175219] ;  973 Program of China [2013CB834405] ;  Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20994
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Guo, WM,Yong, GC,Liu, H,et al. Effects of pion potential and nuclear symmetry energy on the pi(-)/pi(+) ratio in heavy-ion collisions at beam energies around the pion production threshold[J]. PHYSICAL REVIEW C,2015,91(5):54616.
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