Probing equilibration in HICs and symmetry energy by using isospin-related observables
文献类型：期刊论文
| 作者 | Li, QF; Li, ZX |
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2002-09 |
| 卷号 | 26页码:926-932 |
| 关键词 | isospin symmetry potential strength equilibration |
| ISSN号 | 0254-3052 |
| 英文摘要 | We have studied the equilibration with respect to isospin degree of freedom in four systems Ru-96 + Ru-96, Ru-96 + Zr-96, Zr-96 + Ru-96, Zr-96 + Zr-96 at 100 MeV/u and 400MeV/u with isospin dependent QMD. It is proposed in this paper that the neutron-proton differential rapidity distribution is a sensitive probe to the degree of equilibration with respect to the isospin degree of freedom. By analyzing the average N/Z ratio of emitted nucleons, light charged particles (LCP) and intermediate mass fragments (IMF), it is found that there exists memory effect in multifragmentation process. The average N/Z ratio of IMF reduces largely as beam energy increases from 100MeV/u to 400MeV/u, which may result from the change of the behavior of the isotope distribution of IMF. The isotope distribution of IMF does also show certain memory effect at 100 MeV/u case but not at 400 MeV/u case. We also found the rapidity distribution of differential neutron-proton counting in neutron rich nucleus-nucleus collisions at intermediate energies is sensitive to the isospin dependent pail of nuclear potential. In conclusion, based on these studies we have found it's an effective way to explore whether the final equilibration could be reached in intermediate HICs by constructing a set of isospin (a)symmetry nuclear-nuclear collision systems with same mass and different charge. |
| WOS关键词 | HEAVY-ION COLLISIONS ; MULTIFRAGMENTATION ; DYNAMICS ; NUCLEI ; MATTER |
| WOS研究方向 | Physics |
| 语种 | 中文 |
| WOS记录号 | WOS:000178047200008 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://119.78.100.186/handle/113462/56917]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Li, QF |
| 作者单位 | 1.China Inst Atom Energy, Beijing 102413, Peoples R China 2.Natl Lab Lanzhou Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, QF,Li, ZX. Probing equilibration in HICs and symmetry energy by using isospin-related observables[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2002,26:926-932. |
| APA | Li, QF,&Li, ZX.(2002).Probing equilibration in HICs and symmetry energy by using isospin-related observables.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,26,926-932. |
| MLA | Li, QF,et al."Probing equilibration in HICs and symmetry energy by using isospin-related observables".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 26(2002):926-932. |
入库方式： OAI收割
来源：近代物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。