Isospin Dependence of Squeeze-out Flow

  • The squeeze out flow in the reactions of 124Sn+124Sn and 124Ba+124Ba at different energies for different impact parameters was investigated by means of isospin-dependent quantum molecular dynamics model. It was found that the more neutron rich system (124Sn+124Sn) exhibited weaker squeeze-out flow. This isospin dependence of the squeeze-out flow is shown to mainly result from the isospin dependence of nucleon nucleon cross section and the symmetry energy. Meanwhile, it is indicated that the squeeze-out flow depends strongly on the impact parameter and incident energy.
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ZHANG Feng-Shou, CHEN Lie-Wen, LI Wen-Fei and ZHU Zhi-Yuan. Isospin Dependence of Squeeze-out Flow[J]. Chinese Physics C, 2001, 25(5): 412-416.
ZHANG Feng-Shou, CHEN Lie-Wen, LI Wen-Fei and ZHU Zhi-Yuan. Isospin Dependence of Squeeze-out Flow[J]. Chinese Physics C, 2001, 25(5): 412-416. shu
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Received: 2000-04-06
Revised: 1900-01-01
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Isospin Dependence of Squeeze-out Flow

    Corresponding author: ZHANG Feng-Shou,
  • Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China3 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai 201800, China4 CCAST World Laboratory, Beijing 100080, China

Abstract: The squeeze out flow in the reactions of 124Sn+124Sn and 124Ba+124Ba at different energies for different impact parameters was investigated by means of isospin-dependent quantum molecular dynamics model. It was found that the more neutron rich system (124Sn+124Sn) exhibited weaker squeeze-out flow. This isospin dependence of the squeeze-out flow is shown to mainly result from the isospin dependence of nucleon nucleon cross section and the symmetry energy. Meanwhile, it is indicated that the squeeze-out flow depends strongly on the impact parameter and incident energy.

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