Development of Central Collective Flow in 100MeV/u Au+Au Central Collisions

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Xi Hongfei, Shen Wenqing, Zhu Yongtai, Jin Genming and Wei Zhiyong. Development of Central Collective Flow in 100MeV/u Au+Au Central Collisions[J]. Chinese Physics C, 1997, 21(8): 728-733.
Xi Hongfei, Shen Wenqing, Zhu Yongtai, Jin Genming and Wei Zhiyong. Development of Central Collective Flow in 100MeV/u Au+Au Central Collisions[J]. Chinese Physics C, 1997, 21(8): 728-733. shu
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Revised: 1900-01-01
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Development of Central Collective Flow in 100MeV/u Au+Au Central Collisions

    Corresponding author: Xi Hongfei,
  • Institute of Modern Physics,the Chinese Academy of Sciences,Lanzhou 7300002 Shanghai Institute of Nuclear Study,The Chinese Academy of Sciences,Shanghai 201800

Abstract: Using QMD model the time evolution of Au+Au system at 100MeV/u is studied.For very central collisions the conditions for freeze-out and how the different physical quantities approaching equlibrium are investigated.The calculated results show that for 100MeV/u Au+Au at b=0fm,the maximum density can reach 1.6ρ0 and after that the system expands to a low density region.A position correlated central flow is developed during the expansion stage.By studying the two pamicle reladve momentum spectrum it is able to separate central flow from random thenmal motion.The dependence of this central flow on E.O.S.is also discussed.

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