| Original Articles |
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Isoscaling Behaviour in the Isospin-Dependent Quantum Molecular Dynamics Model |
| TIAN Wen-Dong1;MA Yu-Gang1;CAI Xiang-Zhou1;CHEN Jin-Gen1;CHEN Jin-Hui;FANG De-Qing1;GUO Wei1;MA Chun-Wang1;MA Guo-Liang1,2; SHEN Wen-Qing1;WANG Kun1,2;WEI Yi-Bin1,2;YAN Ting-Zhi1;ZHONG Chen1,ZUO Jia-Xu1 |
| 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800-204, Shanghai 201800
2Graduate School of the Chinese Academy of Sciences, Beijing 100039 |
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| Cite this article: |
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TIAN Wen-Dong, MA Yu-Gang, CAI Xiang-Zhou et al 2005 Chin. Phys. Lett. 22 306-309 |
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Abstract The isoscaling behaviour is investigated in a frame of isospin-dependent quantum molecular dynamics models. The isotopic yields ratio Y2/Y1 for reactions 48Ca+48Ca and 40Ca+40Ca at different entrance channels are simulated and presented, the relationship between the isoscaling parameter and the entrance channel is analysed, the results show that α and β reduce with the rise of incident energies and increase with the impact parameter b, which can be attributed to the temperature varying of the pre-fragments in different entrance channels. The relation of α and symmetry-term coefficient Csym reveals that the chemical potential difference Δμ is sensitive to the symmetry-term coefficient Csym, and raises with the increasing Csym.
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25.70.Pq
24.10.Nz
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Published: 01 February 2005
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| PACS: |
25.70.Pq
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(Multifragment emission and correlations)
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24.10.Nz
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(Hydrodynamic models)
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