Chin. Phys. Lett.  2007, Vol. 24 Issue (12): 3388-3391    DOI:
Original Articles |
Phenomenological Scaling of Rapidity Dependence for Anisotropic Flows in 25MeV/nucleon Ca+Ca by Quantum Molecular Dynamics Model
YAN Ting-Zhi 1,2;MA Yu-Gang1;CAI Xiang-Zhou1;FANG De-Qing1;LU
Guang-Cheng1;SHEN Wen-Qing1;TIAN Wen-Dong1;WANG Hong-Wei1;WANG Kun
1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 2018002Graduate School of the Chinese Academy of Sciences, Beijing 100080
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YAN Ting-Zhi, MA Yu-Gang, CAI Xiang-Zhou et al  2007 Chin. Phys. Lett. 24 3388-3391
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Abstract Anisotropic flows (v1, v2, v3 and v4) of light fragments up to the mass number 4 as a function of rapidity are studied for 25MeV/nucleon 40Ca + 40Ca at large
impact parameters by a quantum molecular dynamics model. A phenomenological scaling behaviour of rapidity dependent flow parameters vn (n = 1, 2, 3 and 4) is found as a function of mass number plus a constant term, which may arise from the interplay of collective and random motions. In addition, v4v22 keeps to be almost independent of rapidity and remains a
rough constant of 1/2 for all light fragments.
Keywords: 25.75.Ld      24.10.-i      21.60.Ka     
Received: 17 September 2007      Published: 03 December 2007
PACS:  25.75.Ld (Collective flow)  
  24.10.-i (Nuclear reaction models and methods)  
  21.60.Ka (Monte Carlo models)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2007/V24/I12/03388
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YAN Ting-Zhi
MA Yu-Gang
CAI Xiang-Zhou
FANG De-Qing
LUGuang-Cheng
SHEN Wen-Qing
TIAN Wen-Dong
WANG Hong-Wei
WANG Kun
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