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Study on the formation of the composite system of 238U+238U
  • ISSN号：1674-1137
  • 期刊名称：《中国物理C：英文版》
  • 时间：0
  • 分类：O571[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：China Institute of Atomic Energy, Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing Radiation Center, Institute of Theoretical Physics, Chinese Academic of Science
  • 相关基金：Supported by National Natural Science Foundation of China (10235030, 10675172);National Basic Research Program of China (2007CB209900)
作者： 吴锡真, 田俊龙, 赵凯, 张英逊, 李祝霞
关键词： ImQMD, model, STRONGLY, DAMPED, REACTION, DISSIPATION
中文摘要：

Strongly damped reactions of 238U+238U, at Ecm = 680-1880 MeV have been studied based on the improved quantum molecular dynamics model. 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 make the time delay of re-separation for colliding system. The single particle potential well of the transiently formed composite system has Coulomb barrier about 15-20 MeV high at the surface, which makes the excited unbound protons being still embedded in the potential well and moving in a common mono-single particle potential for a period of time and thus restrains from quick decay of the composite system.

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期刊信息
  • 《中国物理C：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院高能物理研究所 中国科学院近代物理研究所
  • 主编：王贻芳
  • 地址：北京市玉泉路19号（乙）
  • 邮编：100049
  • 邮箱：cpc@mail.ihep.ac.cn
  • 电话：010-88235947
  • 国际标准刊号：ISSN：1674-1137
  • 国内统一刊号：ISSN：11-5641/O4
  • 邮发代号:2-522
  • 获奖情况:
  • 2000年获中国科学院优秀期刊评比一等奖,中国期刊方阵“双百”期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国剑桥科学文摘,美国科学引文索引（扩展库）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,英国英国皇家化学学会文摘
  • 被引量:189