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Thermodynamic properties and shear viscosity over entropy-density ratio of the nuclear fireball in a quantum-molecular dynamics model
Zhou, C. L.; Ma, Y. G.; Fang, D. Q.; Zhang, G. Q.
2013
Source PublicationPHYSICAL REVIEW C
ISSN0556-2813
Volume88Issue:2
AbstractThermodynamic and transport properties of nuclear fireball created in the central region of heavy-ion collisions below 400 MeV/nucleon are investigated within the isospin-dependent quantum molecular dynamic (IQMD) model. These properties, including the density, temperature, chemical potential, entropy density (s), and shear viscosity (eta), are calculated by a generalized hot Thomas Fermi formulism and a parametrized function, which was developed by Danielewicz. As the collision goes on, a transient minimal eta/s = 5/4 pi - 10/4 pi occurs in the largest compression stage. Besides, the relationship of eta/s to temperature (T) in the freeze-out stage displays a local minimum which is about 9-20 times 1/4 pi around T = 8-12 MeV, which can be argued as indicative of a liquid gas phase transition. In addition, the influences of nucleon-nucleon (NN) cross section (sigma(NN)) and symmetry energy coefficient (C-s) are also discussed, and it is found that the results are sensitive to sNN but not to C-s.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000323034000001
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13966
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Zhou, C. L.,Ma, Y. G.,Fang, D. Q.,et al. Thermodynamic properties and shear viscosity over entropy-density ratio of the nuclear fireball in a quantum-molecular dynamics model[J]. PHYSICAL REVIEW C,2013,88(2).
APA Zhou, C. L.,Ma, Y. G.,Fang, D. Q.,&Zhang, G. Q..(2013).Thermodynamic properties and shear viscosity over entropy-density ratio of the nuclear fireball in a quantum-molecular dynamics model.PHYSICAL REVIEW C,88(2).
MLA Zhou, C. L.,et al."Thermodynamic properties and shear viscosity over entropy-density ratio of the nuclear fireball in a quantum-molecular dynamics model".PHYSICAL REVIEW C 88.2(2013).
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