Emissions of fragments and mesons produced in heavy-ion collisions at CSR and related energies

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LIU Fu-Hu, SUN Yan, DUAN Mai-Ying and LI Jun-Sheng. Emissions of fragments and mesons produced in heavy-ion collisions at CSR and related energies[J]. Chinese Physics C, 2008, 32(S2): 24-28.
LIU Fu-Hu, SUN Yan, DUAN Mai-Ying and LI Jun-Sheng. Emissions of fragments and mesons produced in heavy-ion collisions at CSR and related energies[J]. Chinese Physics C, 2008, 32(S2): 24-28. shu
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Received: 2008-07-16
Revised: 1900-01-01
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Emissions of fragments and mesons produced in heavy-ion collisions at CSR and related energies

    Corresponding author: LIU Fu-Hu,

Abstract: Using a multisource ideal gas (MSIG) model, we reconstruct the transverse emission source in the momentum space for light fragments produced in reactions 86Kr-124Sn at 25 MeV/nucleon and b=7—10 fm based on the theoretical predictions of the Isospin-Dependent Quantum Molecular Dynamics (IDQMD) model. We show that the MSIG model can reasonably describe the IDQMD-predicted results for the azimuthal distribution and the transverse momentum dependence of elliptic flow v2 and fourth-order anisotropic flow v4 but can only qualitatively describe the transverse momentum spectra. The azimuthal distributions of nuclear fragments produced in heavy-ion collisions at intermediate energies are studied by the MSIG model. The calculated results are compared and found to be in agreement with the experimental data of Ca-Ca, Nb-Nb, and Au-Au collisions at 150—800 MeV/nucleon beam energies. Meanwhile, the angular distributions of pions and kaons produced in heavy-ion collisions at the low-energy end (1—2 GeV/nucleon) of high energies are investigated by the MSIG model, too. The calculated results are compared and found to be in agreement with the experimental data of the KaoS Collaboration.

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