Dynamics of Phase Transition Including Quark-Fragment Effects for an Expansion Quark-Gluon Plasma

Li Panlin; Wu Hua; Xu Mengjie

Chinese Physics C> 1997, Vol. 21> Issue(S4) : 55-64

Dynamics of Phase Transition Including Quark-Fragment Effects for an Expansion Quark-Gluon Plasma

Li Panlin ¹ ,
Wu Hua ² ,
Xu Mengjie ²

1. Department of Physics, Suzhou Railway Normal College, Suzhou, China;
2. Department of mathematics, Shanghai University, Shanghai, China

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Abstract：
The (1+1) dimensional relativistic hydrodynamics equation with a source term including quark-fragment effects is numerically solved and the evolution of energy density, flow rapidity, and baryon number density as the characteristic values of the phase transition possibly produced in nuclear collisions at extreme high energy are also analyzed. The quark-fragment effects in the source term are described by using the phenomenological SU/(3) string model with a flavor dynamics.
The numerical results are compared with Kajantie's data. It illustrates indirectly that the results are consistent with the experimental data. The physics picture of our model presented in this paper shows that the phenomenological self-consistent model is reasonable.
- phase transition ,
- quark-fragment effect ,
- evolution

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Li Panlin, Wu Hua and Xu Mengjie. Dynamics of Phase Transition Including Quark-Fragment Effects for an Expansion Quark-Gluon Plasma[J]. Chinese Physics C, 1997, 21(S4): 55-64.

Li Panlin, Wu Hua and Xu Mengjie. Dynamics of Phase Transition Including Quark-Fragment Effects for an Expansion Quark-Gluon Plasma[J]. Chinese Physics C, 1997, 21(S4): 55-64. shu

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Received: 1996-04-08

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Supported by the National Natural Science Foundation of China.

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Dynamics of Phase Transition Including Quark-Fragment Effects for an Expansion Quark-Gluon Plasma

1. Department of Physics, Suzhou Railway Normal College, Suzhou, China;
2. Department of mathematics, Shanghai University, Shanghai, China

Received Date: 1996-04-08

Fund Project: Supported by the National Natural Science Foundation of China.

Abstract: The (1+1) dimensional relativistic hydrodynamics equation with a source term including quark-fragment effects is numerically solved and the evolution of energy density, flow rapidity, and baryon number density as the characteristic values of the phase transition possibly produced in nuclear collisions at extreme high energy are also analyzed. The quark-fragment effects in the source term are described by using the phenomenological SU/(3) string model with a flavor dynamics.
The numerical results are compared with Kajantie's data. It illustrates indirectly that the results are consistent with the experimental data. The physics picture of our model presented in this paper shows that the phenomenological self-consistent model is reasonable.