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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 |
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| Cite this article: |
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TIAN Jun-Long, LI Xian, YAN Shi-Wei et al 2009 Chin. Phys. Lett. 26 082504 |
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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.
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| Keywords:
25.70.-z
24.10.-i
25.60.Je
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Received: 05 May 2009
Published: 30 July 2009
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| PACS: |
25.70.-z
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(Low and intermediate energy heavy-ion reactions)
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24.10.-i
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(Nuclear reaction models and methods)
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25.60.Je
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(Transfer reactions)
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