Pion Production in Heavy-Ion Collisions in the 1 A GeV Region
FENG Zhao-Qing1,2, JIN Gen-Ming1,2
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 7300002Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000
Pion Production in Heavy-Ion Collisions in the 1 A GeV Region
FENG Zhao-Qing1,2, JIN Gen-Ming1,2
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 7300002Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000
摘要Within the framework of the improved isospin dependent quantum molecular dynamics (ImIQMD) model, pion emission in heavy-ion collisions in the region 1AGeV is investigated systematically, in which the pion is considered to be mainly produced by the decay of resonances ∆(1232) and N*(1440). The in-medium dependence and Coulomb effects of pion production are included in the calculation. Total pion multiplicity and π-/π+ yields are calculated for the reaction 197\Au+197\Au in central collisions for selected Skyrme parameters SkP, SLy6, Ska, SIII and compared with the measured data of the FOPI collaboration.
Abstract：Within the framework of the improved isospin dependent quantum molecular dynamics (ImIQMD) model, pion emission in heavy-ion collisions in the region 1AGeV is investigated systematically, in which the pion is considered to be mainly produced by the decay of resonances ∆(1232) and N*(1440). The in-medium dependence and Coulomb effects of pion production are included in the calculation. Total pion multiplicity and π-/π+ yields are calculated for the reaction 197\Au+197\Au in central collisions for selected Skyrme parameters SkP, SLy6, Ska, SIII and compared with the measured data of the FOPI collaboration.
(Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions))
FENG Zhao-Qing;JIN Gen-Ming;. Pion Production in Heavy-Ion Collisions in the 1 A GeV Region[J]. 中国物理快报, 2009, 26(6): 62501-062501.
FENG Zhao-Qing, JIN Gen-Ming,. Pion Production in Heavy-Ion Collisions in the 1 A GeV Region. Chin. Phys. Lett., 2009, 26(6): 62501-062501.
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