| 重离子周边碰撞和中心碰撞引起的不同裂变行为 |
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| 引用本文： | 邬恩九,郑纪文,肖志刚,张纯,谭继廉,尹淑芝,王素芳,靳根明,殷旭,宋明涛,金卫阳,朋兴平,李祖玉,吴和宇,贺智勇,江栋兴,钱兴.重离子周边碰撞和中心碰撞引起的不同裂变行为[J].原子核物理评论,2000,17(1):56-57. |
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| 作者姓名： | 邬恩九 郑纪文 肖志刚 张纯 谭继廉 尹淑芝 王素芳 靳根明 殷旭 宋明涛 金卫阳 朋兴平 李祖玉 吴和宇 贺智勇 江栋兴 钱兴 |
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| 作者单位： | 中国科学院近代物理研究所 |
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| 基金项目： | 国家自然科学基金资助项目(19235011)
NSFC (19235011) |
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| 摘 要： | 本实验同时研究了4 0Ar+209Bi反应中周边碰撞和中心碰撞两者产生的关联裂变碎片,以及其与α粒子的再关联.对裂变碎片质量分布和能量分布随热裂变核初始温度演化的系统分析,发现中心碰撞和周边碰撞所形成的热核存在着不同的裂变行为. Correlated fission fragments from the 40Ar+209Bi reaction and their further correlation with α particles have been studied for peripheral and central collisions simultaneously. The existence of different fission behavior of hot nuclei formed in central and peripheral collisions was found from the systematic analysis of the mass and energy distributions of fission fragments as a function of the initial temperature of hot fissioning nuclei.
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| 关 键 词： | 中能重离子反应 热核裂变 高激发态核衰变 |
| 文章编号： | 1007-4627(2000)01-0056-02 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1999年9月3日 |
Different Fission Behavior Induced by Heavy Ion Central and Peripheral Collisions |
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| WU En-jiu,ZHENG Ji-wen,XIAO Zhi-gang,ZHANG Chun,TAN Ji-lian,YIN Shu-zhi,WANG Su-fang,JIN Gen-ming,Yin XU,SONG Ming-Tao,JIN Wei-yang,PENG Xing-ping,LI Zu-yu,WU He-yu,HE Zhi-yong,JIANG Dong-xing,Qian Xing.Different Fission Behavior Induced by Heavy Ion Central and Peripheral Collisions[J].Nuclear Physics Review,2000,17(1):56-57. |
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| Authors: | WU En-jiu ZHENG Ji-wen XIAO Zhi-gang ZHANG Chun TAN Ji-lian YIN Shu-zhi WANG Su-fang JIN Gen-ming Yin XU SONG Ming-Tao JIN Wei-yang PENG Xing-ping LI Zu-yu WU He-yu HE Zhi-yong JIANG Dong-xing Qian Xing |
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| Institution: | Institute of Modern Physics; the Chinese Academy of Sciences; Lanzhou 730000; China |
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| Abstract: | Correlated fission fragments from the 40Ar+209Bi reaction and their further correlation with αparticles have been studied for peripheral and central collisions simultaneously. The existence of differentfission behavior of hot nuclei formed in central and peripheral collisions was found from the systematicanalysis of the mass and energy distributions of fission fragments as a function of the initial temperature ofhot fissioning nuclei. |
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| Keywords: | intermediate energy heavy ion reactions hot nuclei fission highly excited nuclei decay |
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