Evaporation of Intermediate-Mass Fragments From Hot-Nuclei in Reaction 40Ar+159Tb at 25MeV/u |
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Authors: | Qian Xing Jiang Dongxing Qian Tao Hua Hui Lin Junsong Wu Enjiu Zheng Jiwen Jin Genming Yin Shuzhi Tan Jilian Jin Weiyang Song Mingtao Li Zuyu He zhiyong Wang Sufang |
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Institution: | Department of Technical Physics,Peking University, Beijing 1008712 Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000 |
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Abstract: | The inclusive energy spectra of intermediate-mass fragments(IMF)(3≤Z≤9)have been measured in the range from 20°to 155°for 40Ar+159Tb reaction at 25MeV/u.At backward angles,the spectra of IMF show a characteristic of statistic evaporation and can be well fitted by a moving source with same parameters.The obtained source velocity and temperature are in agreement with the corresponding values of hot nuclei produced in an incomplete-fusion process.Therefore,it seems that there IMF are statistically evaporated from a same source.The experimental results have for compared with the predictions of the statistical model using GEMINI code. |
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