中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所1978-2010年知识产出  > 期刊论文
题名: Properties of the composite systems formed in the reactions of (238)U+(238)U and (232)Th+(250)Cf
作者: Tian, Junlong ;  Wu, Xizhen ;  Zhao, Kai ;  Zhang, Yingxun ;  Li, Zhuxia
刊名: PHYSICAL REVIEW C
出版日期: 2008
卷号: 77, 期号:6, 页码:-
关键词: HEAVY-ION COLLISIONS ;  MOLECULAR-DYNAMICS ;  SHELL-MODEL ;  SUPERHEAVY ELEMENTS ;  FRAGMENT FORMATION ;  FUSION-FISSION ;  U-238 ;  NUCLEI ;  SEARCH ;  DECAY
学科分类: Physics
通讯作者: Tian, JL , Beijing Normal Univ, Inst Low Energy Nucl Phys, Beijing 100875, Peoples R China
部门归属: [Tian, JL; Wu, XZ; Zhao, K; Zhang, YX; Li, ZX] China Inst Atom Energy, Beijing 102413, Peoples R China; [Li, ZX] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Strongly damped reactions of (238)U+(238)U, (232)Th+(250)Cf at E(c.m.)=680-1880 MeV have been studied based on the improved quantum molecular dynamics model. The formation and properties of the transiently formed composite system during the reaction process are carefully studied. We find that at a certain energy region, the entrance channel potential is weakly repulsive, and the dissipation is very strong after touching configuration. These two effects delay the re-separation time for a composite system. The single-particle potential well of the transiently formed composite system has a Coulomb barrier about 15-20 MeV high at the surface, which causes the excited unbound protons still embedded in the potential well to move in a common mono-single-particle potential for a period of time and thus restrains the quick decay of the composite system. The incident-energy dependence of the lifetime of the composite system and how the lifetime correlates with the shape configuration, the momentum distribution of the composite system, and the angular distribution of primary fragments are carefully investigated. The results indicate that the longest average lifetime for the transient composite system of U+U can reach about 1200 fm/c at properly selected incident energies.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000257290000039
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5520
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Properties of the composite systems formed in the reactions of 238U+238U and 232Th+250Cf.pdf(1000KB)----开放获取View Download

Recommended Citation:
Tian, Junlong,Wu, Xizhen,Zhao, Kai,et al. Properties of the composite systems formed in the reactions of (238)U+(238)U and (232)Th+(250)Cf[J]. PHYSICAL REVIEW C,2008,77(6):-.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Tian, Junlong]'s Articles
 [Wu, Xizhen]'s Articles
 [Zhao, Kai]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Tian, Junlong]‘s Articles
 [Wu, Xizhen]‘s Articles
 [Zhao, Kai]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: Properties of the composite systems formed in the reactions of 238U+238U and 232Th+250Cf.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace