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变形核强阻尼碰撞中巨复合体系的形成和衰变
  • ISSN号：1007-4627
  • 期刊名称：原子核物理评论
  • 时间：2012
  • 页码：133-138
  • 分类：O571.6[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：[1]安阳师范学院物理与电气工程学院,河南安阳455002, [2]北京师范大学射线束技术与材料改性教育部重点实验室,北京100875
  • 相关基金：国家自然科学基金资助项目（11005003,10975095,11047108）; 安阳师范学院本科生创新基金资助项目（ASCX12011-Z19）~~
  • 相关项目：大质量转移反应合成超重元素的理论研究
作者： 邓天煜|田俊龙|田博博|付栋之|
关键词： ImQMD模型, 变形核, 强阻尼反应, 碰撞模式, ImQMD model, deformed nucleus, strongly damped collision, collision mode
中文摘要：

利用改进的量子分子动力学（ImQMD）模型研究了质心系入射能量为980 MeV时变形核238U＋238U体系的3种不同碰撞模式（腹对腹、尖对腹和尖对尖）下强阻尼反应过程中初级超重碎块的产生几率和复合体系的寿命、形状和拉长取向等性质,发现尖对腹碰撞模式有利于初级超重碎块的产生,还发现这种碰撞模式产生的复合体系有最长的寿命。

英文摘要：

Three different collision modes （ Belly-belly, Belly-tip and Tip-tip） of the deformed uranium nu- cleus 238U bombarding the deformed 238U in strongly damped reaction at the incident energy 980 MeV has been investigated based on the improved quantum molecular dynamics （ImQMD） model. The formation and properties of the formed composite system during the reaction process were carefully studied including the lifetime, the shape configuration and the angular distribution of primary fragment. It was found that the Belly-tip mode is suitable for producing the super heavy fragments, and the composite system has the longest lifetime in this mode.

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期刊信息
  • 《原子核物理评论》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国科学院近代物理研究所 中国核物理学会
  • 主编：肖国青
  • 地址：兰州市31号信箱
  • 邮编：730000
  • 邮箱：npr@impcas.ac.cn
  • 电话：0931-4969371/4
  • 国际标准刊号：ISSN：1007-4627
  • 国内统一刊号：ISSN：62-1131/O4
  • 邮发代号:54-183
  • 获奖情况:
  • 2009年1月获甘肃省优秀期刊奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,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,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:1602