Freeze-out Concept in Antisymmetrized Molecular Dynamics
doi: 10.11804/NuclPhysRev.32.02.170
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2015-06-20
-
Key words:
- statistical freeze-out /
- AMD /
- heavy ion reaction /
- self consistent method /
- density /
- temperature
Abstract: As a part of statistical freeze-out study in antisymmetrized molecular dynamics (AMD), an analysis of 112Sn+112Sn at 50 MeV/nucleon is presented. Using the self-consistent method combined with the Modified Fisher model, the fragmenting source density, ρ/ρ0=0.69±0.03, temperature, T =(6.1±0.2)MeV, are extracted. By comparing the maximum density in the system during the time evolution of AMD calculation, a significantly lower density is found for the fragmenting source density. The extracted
fragmenting source density and temperature are very similar to those for 40Ca + 40Ca at 35 MeV/nucleon and 64Zn + 112Sn at 40 MeV/nucleon. These indicate that there is a common statistical freeze-out volume at the time of the formation of intermediate mass fragments (IMFs) in AMD transport model.
Citation: | LIN Weiping, LIU Xingquan, HUANG Meirong, ZHANG Suyalatu, CHEN Zhiqiang, WANG Jiansong, HAN Rui, LIU Jianli, REN Peipei, SHI Fudong, Roy Wada. Freeze-out Concept in Antisymmetrized Molecular Dynamics[J]. Nuclear Physics Review, 2015, 32(2): 170-174. doi: 10.11804/NuclPhysRev.32.02.170 |