| Isoscaling of projectile-like fragments |
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| 作者姓名： | 钟晨 马余刚 方德清 蔡翔舟 陈金根 沈文庆 田文栋 王鲲 魏义彬 陈金辉 郭威 马春旺 马国亮 苏前敏 颜庭志 左嘉旭 |
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| 作者单位： | Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China |
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| 基金项目： | Project supported in part by the Shanghai Development Foundation for Science and Technology of China (Grant Nos 05XD14021 and 03QA14066), the National Natural Science Foundation of China (Grant Nos 10328259, 10135030, 10405032,10405033 and 10475108), the |
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| 摘 要： | In this paper, the isotopic and isotonic distributions of projectile fragmentation products have been simulated by a modified statistical abrasion--ablation model and the isoscaling behaviour of projectile-like fragments has been discussed. The isoscaling parameters α and β have been extracted respectively, for hot fragments before evaporation and cold fragments after evaporation. It looks that the evaporation has stronger effect on α than β. For cold fragments, a monotonic increase of α and β with the increase of Z and N is observed. The relation between isoscaling parameter and the change of isospin content is discussed.
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| 关 键 词： | 重离子反应 抛体断裂 同位素分布 原子核物理学 |
| 收稿时间： | 2005-11-30 |
| 修稿时间： | 2005-11-302006-01-24 |
Isoscaling of projectile-like fragments |
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| Zhong Chen,Ma Yu-Gang,Fang De-Qing,Cai Xiang-Zhou,Chen Jin-Gen,Shen Wen-Qing,Tian Wen-Dong,Wang Kun,Wei Yi-Bin,Chen Jin-Hui,Guo Wei,Ma Chun-Wang,Ma Guo-Liang,Su Qian-Min,Yan Ting-Zhi and Zuo Jia-Xu.Isoscaling of projectile-like fragments[J].Chinese Physics B,2006,15(7):1481-1485. |
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| Authors: | Zhong Chen Ma Yu-Gang Fang De-Qing Cai Xiang-Zhou Chen Jin-Gen Shen Wen-Qing Tian Wen-Dong Wang Kun Wei Yi-Bin Chen Jin-Hui Guo Wei Ma Chun-Wang Ma Guo-Liang Su Qian-Min Yan Ting-Zhi and Zuo Jia-Xu |
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| Institution: | Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | In this paper, the isotopic and isotonic distributions of projectile fragmentation products have been simulated by a modified statistical abrasion--ablation model and the isoscaling behaviour of projectile-like fragments has been discussed. The isoscaling parameters α and β have been extracted respectively, for hot fragments before evaporation and cold fragments after evaporation. It looks that the evaporation has stronger effect on α than β. For cold fragments, a monotonic increase of α and β with the increase of Z and N is observed. The relation between isoscaling parameter and the change of isospin content is discussed. |
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| Keywords: | heavy ion reaction projectile fragmentation isoscaling |
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