Superheavy fragments produced in the asymmetric strongly damped collision
文献类型：期刊论文
| 作者 | Tian Jun-Long1; Wu Xi-Zhen1,2; Li Zhu-Xia1,2,3; Zhao Kai1 |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2008-01 |
| 卷号 | 32页码:34-39 |
| 关键词 | strongly damped collision superheavy fragments ImQMD model |
| ISSN号 | 1674-1137 |
| 英文摘要 | The strongly damped collisions of very heavy nuclei Th-232+Cf-250 at the energy range of 680-1880 MeV have been studied within the improved quantum molecular dynamics model. The production probability of primary superheavy fragments with Z >= 114 (SHFs) for the asymmetric reaction Th-232+Cf-250 is higher than that for the symmetric reaction Pu-244+Pu-244 and U-238+U-238. The calculated results show that the mass and charge distributions of primary fragments, the excitation energy distribution of SHFs depend on the incident energies strongly. Two stages of the decay process of composite systems are distinguished by very different decay slopes, which imply different decay mechanisms of the composite system. The first stage is for the decay of giant composite systems and the second one corresponds to the decay of fragments of giant composite systems including SHFs through emitting neutron, proton or other charged particles, and also through fission or fragmentation. The slow reduction of SHFs in the second stage seems to be helpful for the survival of primary superheavy fragments. |
| WOS关键词 | DINUCLEAR SYSTEM ; U-238 ; ELEMENTS ; NUCLEI ; STATE |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000253488900008 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://119.78.100.186/handle/113462/57143]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Tian Jun-Long |
| 作者单位 | 1.China Inst Atom Energy, Beijing 102413, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 3.Natl Lab Heavy Ion Accelarator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian Jun-Long,Wu Xi-Zhen,Li Zhu-Xia,et al. Superheavy fragments produced in the asymmetric strongly damped collision[J]. CHINESE PHYSICS C,2008,32:34-39. |
| APA | Tian Jun-Long,Wu Xi-Zhen,Li Zhu-Xia,&Zhao Kai.(2008).Superheavy fragments produced in the asymmetric strongly damped collision.CHINESE PHYSICS C,32,34-39. |
| MLA | Tian Jun-Long,et al."Superheavy fragments produced in the asymmetric strongly damped collision".CHINESE PHYSICS C 32(2008):34-39. |
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。