Isospin effect in the nuclear reaction induced by neutron-halo nuclei
文献类型：期刊论文
| 作者 | Liu Jian-Ye; Zuo Wei; Lee Xi-Guo; Xing Yong-Zhong |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2007-03-01 |
| 卷号 | 56期号:3页码:1339-1346 |
| 关键词 | neutron-halo nucleus nuclear stopping neutron-proton ratio of nucleon emissions isospin fractionation ratio |
| ISSN号 | 1000-3290 |
| 英文摘要 | We study the average property of the isospin effect of reaction induced by halo-neutron nuclei He-8 and He-10 in the intermediate energy heavy ion collisions using the isospin-dependent quantum molecular dynamics model (IQMD). This study is based on the extended neutron density distribution for the halo-neutron nuclei, which includes the average property of the isospin effect-of reaction mechanism and loose inner structure. The extended neutron density distribution brings an important isospin. effect into the average property of reaction mechanism because the interaction potential and nucleon-nucleon(N-N) cross section in IQMD model depend sensitively on the density distribution of colliding system. In order to see clearly the average properties of reaction mechanism induced by halo-neutron nuclei we also compare the results for the neutron-halo colliding systems with those for the corresponding stable colliding systems under the same incident channel condition. We found that the extended density distribution for the neutron-halo projectile brings an important isospin effect to the reaction mechanism, which leads to the decrease of nuclear stopping R, yet induces obvious increase of the neutron-proton ratio of nucleon emissions and isospin fractionation ratio for all beam energies studied in this work, compared to the corresponding stable colliding system. In this case, nuclear stopping, the neutron-proton ratio of nucleon emissions and isospin fractionation ratio induced by halo-neutron nuclei can be used as possible probes for studying the average property of the isospin effect of reaction mechanism and extracting the information of symmetry potential and in-medium N-N cross section by the neutron-halo nuclei in heavy ion collisions. |
| WOS关键词 | HEAVY-ION COLLISIONS ; INTERACTION CROSS-SECTIONS ; QUANTUM MOLECULAR-DYNAMICS ; GLAUBER MODEL ; FRAGMENTATION ; RADII ; LI-11 ; STATE ; BE-14 |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000244849500016 |
| 出版者 | CHINESE PHYSICAL SOC |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/6035]  |
| 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 | Liu Jian-Ye |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 3.Tianshui Normal Univ, Inst Basic Phys, Tianshui 741000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Jian-Ye,Zuo Wei,Lee Xi-Guo,et al. Isospin effect in the nuclear reaction induced by neutron-halo nuclei[J]. ACTA PHYSICA SINICA,2007,56(3):1339-1346. |
| APA | Liu Jian-Ye,Zuo Wei,Lee Xi-Guo,&Xing Yong-Zhong.(2007).Isospin effect in the nuclear reaction induced by neutron-halo nuclei.ACTA PHYSICA SINICA,56(3),1339-1346. |
| MLA | Liu Jian-Ye,et al."Isospin effect in the nuclear reaction induced by neutron-halo nuclei".ACTA PHYSICA SINICA 56.3(2007):1339-1346. |
入库方式： OAI收割
来源：近代物理研究所
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