Probing the Dissipation Mechanism in Ternary Reactions of 197Au+197Au by Mean Free Path of Nucleons
TIAN Jun-Long1,2, LI Xian1, YAN Shi-Wei1,2,3, WU Xi-Zhen4, LI Zhu-Xia4
1College of Nuclear Science and Technology, Beijing Normal University, Beijing 1008752Beijing Radiation Center, Beijing 1008753Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 7300004China Institute of Atomic Energy, Beijing 102413
Probing the Dissipation Mechanism in Ternary Reactions of 197Au+197Au by Mean Free Path of Nucleons
TIAN Jun-Long1,2, LI Xian1, YAN Shi-Wei1,2,3, WU Xi-Zhen4, LI Zhu-Xia4
1College of Nuclear Science and Technology, Beijing Normal University, Beijing 1008752Beijing Radiation Center, Beijing 1008753Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 7300004China Institute of Atomic Energy, Beijing 102413
摘要the collision of very heavy nuclei 197Au+197Au at 15 A MeV has been studied within the improved quantum molecular dynamics model. A class of ternary events satisfying nearly complete balance of mass numbers is selected. The experimental mass distributions for the system 197Au+197Au ternary fission fragments, the heaviest (A1), the intermediate (A2) and the lightest (A3), are reproduced well. The mean free path of nucleons in the reaction system is studied and the shorter mean free path is responsible for the ternary fission with three mass comparable fragments, in which the two-body dissipation mechanism plays a dominant role.
Abstract：the collision of very heavy nuclei 197Au+197Au at 15 A MeV has been studied within the improved quantum molecular dynamics model. A class of ternary events satisfying nearly complete balance of mass numbers is selected. The experimental mass distributions for the system 197Au+197Au ternary fission fragments, the heaviest (A1), the intermediate (A2) and the lightest (A3), are reproduced well. The mean free path of nucleons in the reaction system is studied and the shorter mean free path is responsible for the ternary fission with three mass comparable fragments, in which the two-body dissipation mechanism plays a dominant role.
TIAN Jun-Long;LI Xian;YAN Shi-Wei;;WU Xi-Zhen;LI Zhu-Xia. Probing the Dissipation Mechanism in Ternary Reactions of 197Au+197Au by Mean Free Path of Nucleons[J]. 中国物理快报, 2009, 26(8): 82504-082504.
TIAN Jun-Long, LI Xian, YAN Shi-Wei, , WU Xi-Zhen, LI Zhu-Xia. Probing the Dissipation Mechanism in Ternary Reactions of 197Au+197Au by Mean Free Path of Nucleons. Chin. Phys. Lett., 2009, 26(8): 82504-082504.
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2009, Vol. 26 
