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Probing high-density behavior of symmetry energy from pion emission in heavy-ion collisions
文献类型：期刊论文
| 作者 | Jin, Gen-Ming; Feng, Zhao-Qing
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2010-01-18 |
| 卷号 | 683期号:2-3页码:140-144 |
| ISSN号 | 0370-2693 |
| 关键词 | ImIQMD model Pion emission Skyrme parameters Symmetry energy |
| DOI | 10.1016/j.physletb.2009.12.006 |
| 英文摘要 | Within the framework of the improved isospin dependent quantum molecular dynamics (ImIQMD) model, the emission of pion in heavy-ion collisions in the region 1 A GeV as a probe of nuclear symmetry energy at supra-saturation densities is investigated systematically, in which the pion is considered to be mainly produced by the decay of resonances Delta(1232) and N*(1440). The total pion multiplicities and the pi(-)/pi(+) yields are calculated for selected Skyrme parameters SkP, SLy6. Ska and SIB, and also for the cases of different stiffness of symmetry energy with the parameter SLy6. Preliminary results compared with the measured data by the FOPI Collaboration favor a hard symmetry energy of the potential term proportional to (rho/rho(0))(gamma s) with gamma(s) = 2. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | MOLECULAR-DYNAMICS MODEL ; FUSION REACTIONS ; COULOMB BARRIER ; DEPENDENCE |
| 资助项目 | National Natural Science Foundation of China[10805061] ; National Natural Science Foundation of China[10775061] ; Chinese Academy of Sciences ; major state basic research development program[2007CB815000] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000274421100011 |
| 资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences ; major state basic research development program |
| 公开日期 | 2011-04-20 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/7801]  |
| 专题 | 近代物理研究所_近代物理研究所知识存储（2010之前） |
| 通讯作者 | Feng, Zhao-Qing |
| 作者单位 | Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Gen-Ming,Feng, Zhao-Qing. Probing high-density behavior of symmetry energy from pion emission in heavy-ion collisions[J]. PHYSICS LETTERS B,2010,683(2-3):140-144. |
| APA | Jin, Gen-Ming,&Feng, Zhao-Qing.(2010).Probing high-density behavior of symmetry energy from pion emission in heavy-ion collisions.PHYSICS LETTERS B,683(2-3),140-144. |
| MLA | Jin, Gen-Ming,et al."Probing high-density behavior of symmetry energy from pion emission in heavy-ion collisions".PHYSICS LETTERS B 683.2-3(2010):140-144. |
入库方式： OAI收割
来源：近代物理研究所
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