Directed and elliptic flows in 40Ca + 40Ca and 112Sn + 112Sn collisions

  • H.Y. Zhang
  • W.Q. Shen
  • Y.G. Ma
  • X.Z. Cai
  • D.Q. Fang
  • L.P. Yu
  • C. Zhong
  • Y.B. Wei

Abstract:

The directed and elliptic flows for different light particles and fragments in collisions of 40Ca + 40Ca and 112Sn + 112Sn at energies from 30MeV/nucleon to 100MeV/nucleon were studied in the isospin-dependent quantum molecule dynamics model (IQMD). With increasing incident energy, the directed flow rises from negative to positive, while the elliptic flow decreases with increasing the incident energies. The directed flow for the 40Ca + 40Ca system is not sensitive to the nuclear equation of states (EOS), but the directed flow for the 112Sn + 112Sn system is sensitive to the EOS. However, the elliptic flows for both 40Ca + 40Ca and 112Sn + 112Sn systems are not sensitive to EOS. A study of the dependence of directed and elliptic flows on the fragment charge (mass) is also performed.

PACS. 25.75.-q Relativistic heavy-ion collisions – 24.10.Lx Monte Carlo simulations (including hadron and parton cascades and string breaking models) – 25.70.-z Low and intermediate energy heavy-ion reactions 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2002

Authors and Affiliations

  • H.Y. Zhang
    • 1
  • W.Q. Shen
    • 1
  • Y.G. Ma
    • 1
  • X.Z. Cai
    • 1
  • D.Q. Fang
    • 1
  • L.P. Yu
    • 1
  • C. Zhong
    • 1
  • Y.B. Wei
    • 1
  1. 1.Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800, PRCCN

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