Thermalization,Expansion and Radial Flow in HIC

Zeng Xianghua; Ge Lingxiao

Chinese Physics C> 1997, Vol. 21> Issue(2) : 157-161

Thermalization,Expansion and Radial Flow in HIC

Zeng Xianghua ^, ,
Ge Lingxiao

Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000

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Abstract：
The thermalization,expansion and radial flow are discussed in the processes of intermediate energy heavy ion collisions via BUU model.Our results show that at lower energies,the thermalization is reached for the collision system,but at higher energies the global thermalization is violated and only local equilibrium exists.The expansion process in the heavy ion collision at medium energies is also discussed.

References

[1]

Ge Lingxiao, Zeng Xianghua, Zuo Wei, Phys. Rev., C50(1994)2129.[2] Moretto, L. G. et al., Phys. Lett., 58B(1975)31.[3] Poskanzer, A. M. et al., Phys. Rev., C3(1971)882.[4] B. H. Sa, D. H. E. Gross, Nucl. Phys., A366(1985)643; C. 0. Dom, Phys. Rev., C52(1995)985.[5] J. P. Alard et al., Phys. Rev. Lett., 6619921889.[6] N. Hernnann, Nucl. Phys., A563(1993)739c.[7] S. C. Jeong et al., Phys. Rev. Lett., 72(1994)3468; J. Barrette et al., Phys. Rev. Lett., 73(1994)2532.[8] B. Heide, H. W. Barz, Nucl. Phys., A588(1995)918.[9] Zeng Xianghua, Ge Lingxiao, Z. Physik, A354(1996)317.[10] M. A. Lisa, S. Albergo, F. Biem et al . , Phys. Rev. Lett., 75(1995)2662.

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Zeng Xianghua and Ge Lingxiao. Thermalization,Expansion and Radial Flow in HIC[J]. Chinese Physics C, 1997, 21(2): 157-161.

Zeng Xianghua and Ge Lingxiao. Thermalization,Expansion and Radial Flow in HIC[J]. Chinese Physics C, 1997, 21(2): 157-161. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Thermalization,Expansion and Radial Flow in HIC

Zeng Xianghua ^,
Ge Lingxiao

Corresponding author: Zeng Xianghua,

Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-02-05

Abstract: The thermalization,expansion and radial flow are discussed in the processes of intermediate energy heavy ion collisions via BUU model.Our results show that at lower energies,the thermalization is reached for the collision system,but at higher energies the global thermalization is violated and only local equilibrium exists.The expansion process in the heavy ion collision at medium energies is also discussed.