Chinese Physics C > 1990, Vol. 14 > Issue(4): 359-365

THE CHARACTERISTIC DILEPTON MASS DISTRIBUTION FROM HOT QUARK MATTER IN ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS

CHEN Jun-Feng^,,
HE Ze-Jun

Institute of Nuclear Research,Academic Sinica,Shanghai

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Abstract：
The characteristic dilepton mass distributions from the decay of high temperature-density quark-gluon matter in ultrarelativistic nucleusnucleus collisions were calculated via the relativistic hydrodynamics.Both longitudinal expansion accompanying transverse expansion of the matter and the effect of phase transition leading to the re-distribution of the temperature were considered.The characteristic phenomena which have been suggested as a test for the existence of quark-gluon plasma were given and provided as a theoretical basis of experiment.

References

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K. Kajantie, H. I. Miettinen, Z. Phys., C9(1981), 341.[2] László P. Csernai; Phys. Rev, D29(1984), 1945[3] D. Bjorken, Phys. Rev., D27(1983), 140.[4] C. Cale and J. Kapusta, Nucl. Phys., A47 (1987), 35C.[5] G. Domokos and J. I. Goldman, Phys. Rev., D23(1981), 203[6] S. Chin, Phys. Lett., 119B(1982), 51.[7] K. Kajantie et al., Phys. Rev., D34(1986),811[8] G. Baym et al., Nucl. Phys,A407(1983),541.[9] F. Cooper et al., Phys Rcv.,D11(1975), 192[10] K. Kajantie, J. Kagusta and A. Melerran, Phys. Rev., D34(1986), 2746.[11] L. D. Landau, Izv. Akad. Nauk SSSR, 17(1953), 51.[12] I, L, Rozental, Sov. -Phys. Usp., 18(1975), 430.[13] F. Cooper, Particle and Field, 1974 AIP Conf. Proc. No. 23(1975), 499.[14] J. Kapusta and A. Mekjian, Phys. Rev., D33(1986), 1304.

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CHEN Jun-Feng and HE Ze-Jun. THE CHARACTERISTIC DILEPTON MASS DISTRIBUTION FROM HOT QUARK MATTER IN ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS[J]. Chinese Physics C, 1990, 14(4): 359-365.

CHEN Jun-Feng and HE Ze-Jun. THE CHARACTERISTIC DILEPTON MASS DISTRIBUTION FROM HOT QUARK MATTER IN ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS[J]. Chinese Physics C, 1990, 14(4): 359-365. 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

THE CHARACTERISTIC DILEPTON MASS DISTRIBUTION FROM HOT QUARK MATTER IN ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS

CHEN Jun-Feng^,
HE Ze-Jun

Corresponding author:CHEN Jun-Feng,

Institute of Nuclear Research,Academic Sinica,Shanghai

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1990-04-05

Abstract:The characteristic dilepton mass distributions from the decay of high temperature-density quark-gluon matter in ultrarelativistic nucleusnucleus collisions were calculated via the relativistic hydrodynamics.Both longitudinal expansion accompanying transverse expansion of the matter and the effect of phase transition leading to the re-distribution of the temperature were considered.The characteristic phenomena which have been suggested as a test for the existence of quark-gluon plasma were given and provided as a theoretical basis of experiment.