Transverse emission of isospin ratios as a probe of high-density symmetry energy in isotopic nuclear reactions
文献类型：期刊论文
| 作者 | Feng, Zhao-Qing
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2012-01-16 |
| 卷号 | 707页码:83-87 |
| 关键词 | Transverse Emission Isotopic Systems Isospin And Momentum-dependent Transport Model High-density Symmetry Energy |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2011.12.001 |
| 文献子类 | Article |
| 英文摘要 | Transverse emission of preequilibrium nucleons, light clusters (complex particles) and charged pions from the isotopic Sn-112,Sn-124 + Sn-112,Sn-124 reactions at a beam energy of 400 A MeV, to extract the high-density behavior of nuclear symmetry energy, are investigated within an isospin and momentum-dependent transport model. Specifically, the double ratios of neutron/proton, triton/helium-3 and pi(-)/pi(+) in the squeeze-out domain are analyzed systematically, which are favorable in reducing the influence of the Coulomb force and less systematic errors. It is found that the transverse momentum distribution of isospin ratios strongly depend on the stiffness of nuclear symmetry energy, which would be a nice observable to extract the high-density symmetry energy. The collision centrality and the mass splitting of neutron and proton in nuclear medium play a significant role on the distribution structure of the ratios, but do not change the influence of symmetry energy on the spectrum. (C) 2011 Elsevier B.V. All rights reserved. |
| WOS关键词 | HEAVY-ION REACTIONS ; COLLISIONS ; MATTER |
| 资助项目 | National Natural Science Foundation of China[10805061] ; National Natural Science Foundation of China[11175218] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000299757000012 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/49081]  |
| 专题 | 中国科学院近代物理研究所 |
| 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 | Feng, Zhao-Qing. Transverse emission of isospin ratios as a probe of high-density symmetry energy in isotopic nuclear reactions[J]. PHYSICS LETTERS B,2012,707:83-87. |
| APA | Feng, Zhao-Qing.(2012).Transverse emission of isospin ratios as a probe of high-density symmetry energy in isotopic nuclear reactions.PHYSICS LETTERS B,707,83-87. |
| MLA | Feng, Zhao-Qing."Transverse emission of isospin ratios as a probe of high-density symmetry energy in isotopic nuclear reactions".PHYSICS LETTERS B 707(2012):83-87. |
入库方式： OAI收割
来源：近代物理研究所
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