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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 |
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FENG Zhao-Qing, JIN Gen-Ming 2009 Chin. Phys. Lett. 26 062501 |
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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.
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| Keywords:
25.75.-q
13.75.Gx
25.80.Ls
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Received: 01 December 2008
Published: 01 June 2009
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| PACS: |
25.75.-q
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(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))
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13.75.Gx
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(Pion-baryon interactions)
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25.80.Ls
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(Pion inclusive scattering and absorption)
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