Chinese Physics C > 2008, Vol. 32 > Issue(S2): 24-28

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

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Using a multisource ideal gas (MSIG) model, we reconstruct the transverse emission source in the momentum space for light fragments produced in reactions⁸⁶Kr-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 v₂and fourth-order anisotropic flow v₄but 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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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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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author:LIU Fu-Hu,

Received Date:2008-07-16

Accepted Date:1900-01-01

Available Online:2008-01-03

Abstract:Using a multisource ideal gas (MSIG) model, we reconstruct the transverse emission source in the momentum space for light fragments produced in reactions⁸⁶Kr-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 v₂and fourth-order anisotropic flow v₄but 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.

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

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

Corresponding author:LIU Fu-Hu,

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