Isospin effect in peripheral heavy-ion collisions at Fermi energies
文献类型：期刊论文
| 作者 | Guo, Ya-Fei1,2; Chen, Peng-Hui1,2; Niu, Fei3; Feng, Zhao-Qing1,3
|
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2018-12 |
| 卷号 | 42页码:124106 |
| ISSN号 | 1674-1137 |
| 关键词 | symmetry energy nuclear fragmentation reaction neutron-rich nuclei LQMD transport model |
| DOI | 10.1088/1674-1137/42/12/124106 |
| 英文摘要 | The isospin effect in peripheral heavy-ion collisions was thoroughly investigated within the framework of the Lanzhou quantum molecular dynamics (LQMD) transport model. A coalescence approach was used to recognize the primary fragments formed in nucleus-nucleus collisions. The secondary decay process of these fragments was described using the statistical code GEMINI. The production mechanism and isospin effect of the projectile-like and target-like fragments were analyzed using the combined approach. It was found that the isospin migration from the high-isospin density to the low-density matter occurred in the neutron-rich nuclear reactions, i.e., Ca-48+Pb-208, Kr-86+Ca-48/Pb-208/Sn-124, Xe-136+ Pb-208, (124) Sn+ Sn-124, and Xe-136+ Xe-136. A hard symmetry energy was available for creating the neutron-rich fragments, particularly in the medium-mass region. The isospin effect of the neutron-to-proton (n/p) ratio of the complex fragments was reduced when the secondary decay process was included. However, a soft symmetry energy enhanced the n/p ratio of the light particles, particularly at kinetic energies greater than 15 MeV/nucleon. |
| WOS关键词 | SUPERHEAVY NUCLEI ; DYNAMICS ; FUSION |
| 资助项目 | Talent Program of South China University of Technology[K5180470] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000451430300016 |
| 源URL | [http://119.78.100.186/handle/113462/64433]  |
| 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 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China 3.South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Ya-Fei,Chen, Peng-Hui,Niu, Fei,et al. Isospin effect in peripheral heavy-ion collisions at Fermi energies[J]. CHINESE PHYSICS C,2018,42:124106. |
| APA | Guo, Ya-Fei,Chen, Peng-Hui,Niu, Fei,&Feng, Zhao-Qing.(2018).Isospin effect in peripheral heavy-ion collisions at Fermi energies.CHINESE PHYSICS C,42,124106. |
| MLA | Guo, Ya-Fei,et al."Isospin effect in peripheral heavy-ion collisions at Fermi energies".CHINESE PHYSICS C 42(2018):124106. |
入库方式： OAI收割
来源：近代物理研究所
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