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

Li Panlin; Wu Hua; Xu Mengjie

Chinese Physics C> 1997, Vol. 21> Issue(10) : 918-925

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

Department of physics, Suzhou Railway Normal College, Suzhou 2150092 Department of Mathematics, Shanghai University, shanghai 201800

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

References

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K. Kajantie, H. I. Miettinen, Z. iPhys/i., C9(1981)341; Laszlo P. Csernai, iPhys/i. iRev/i., D29(1984)1945; C. Cale, J. Kapusta, iNucl/i. iPhys/i., A471(1987)350.[2]S. A. Chin, iPhys/i. iLett/i., 78B(1978)552.[3]D. Bjoken, iPhys/i. iRev/i., D27(1983)140.[4]I. L. Rozental, iSov/i. iPhys/i., iUPS/i., 18(1975)430.[5]G. Baym, B. L. Friman, J. P. Blaizot iet al/i., iNucl/i. iPhys/i., A407(1983)541.[6]K. Kajantie, R. Ratio, P. V. Ruuskanzen, iNucl/i. iPhys/i., B222(1983)152.[7]H. W. Barz, B. L. Friman, J. Knoll iet al/i., iNucl/i. iPhys/i., A484(1988)661[9]D. Potter, Computational Physics (John Wiley Sons, London, 1973) p.67.

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Li Panlin, Wu Hua and Xu Mengjie. Dynamics of Phase Transition Including Quark-Fragment Effects foran Expansion Quark-Gluon Plasma[J]. Chinese Physics C, 1997, 21(10): 918-925.

Li Panlin, Wu Hua and Xu Mengjie. Dynamics of Phase Transition Including Quark-Fragment Effects foran Expansion Quark-Gluon Plasma[J]. Chinese Physics C, 1997, 21(10): 918-925. 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

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

Corresponding author: Li Panlin,

Department of physics, Suzhou Railway Normal College, Suzhou 2150092 Department of Mathematics, Shanghai University, shanghai 201800

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-10-05

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