Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u 40Ar+197Au |
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Authors: | DUAN Li-Min WU He-Yu JIN Gen-Ming WANG Su-Fang LI Zu-Yu WEI Zhi-Yong ZHANG Bao-Guo WANG Hong-Wei XIAO Zhi-Gang LIU Yong-Ying HU Pei-Gang LU Zhao-Hui TIAN Wen-Dong GOU Quan-Bu |
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Institution: | Institute of Modern Physics,The Chinese Academy of Science,Lanzhou 730000,China |
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Abstract: | The fission fragments in the reaction of 40Ar+197Au have been measured coincidently with light charged particles at 35MeV/u by using large area position sensitive detectors and Si-detectors. The velocities of the fissioning compounds are deduced based on the fragments and the excitation energies of the compounds calculated with a hypothesis of massive transfer and taking into account the influence of pre-equilibrium emission of light particles. As the same time,the temperatures of the compounds are extracted by using the energy spectra of the backward light charged particles measured coincidently with fission fragments. The temperature-excitation energy curve does not present the behaviour predicted by the theories. |
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