Characteristic Dilepton Distribution for Quark-Gluon Matter

  • Based on the relativistic hydrodynamic model,the dilepton production in the quark-gluon fireball is studied.It is found that with increasing initial temperature the total dilepton yield mconotonicly goes up aftera plateau for the quark-gluon fireball of zero baryon number and shows a peak for the baryon-rich quark-gluon fireball.Such a characteristics as a signal of the quark-gluon matter formation in the collision could be tested in future experiments at CERN and Brookhaven.
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  • [1] Quark mattel/ 88. Proceeding Rofeth Saventh International Conference on Ultrarelativistic Nucleus-Nucleus collisions,edited by. G Baym. P Braun-Munainger and S Nagmiya Nucl. Phys., A498(1989) lc.[2] W. Busza, Nucl. Phys., A418 (1984) 635.[3] O. Hansen 1992 in Proceeding of the Twentieth International Workshop on Gross Properties of Nuclei and Nuclear Excitations. Hirschegg. Austria. Edited by. H. Feldmeier.[4] G. Odyniec 1989 NA35 Collaboration, Proceedings of the International Workshop on Relativistic Aspects of Nuclear Physics, Rio de Janeiro.[5] A. Dumitru, D. H. Rischke, Th. Schonfeld et al., Phys. Rev Lett., 70(1993)2860.[6] A. V. Keitz, L. Winckelmann, A. Jakns et al., Phys. Lett., B263 (1991) 353.[7] G. Gustafson 1992 Proceedings of the Workshop on Relativistic Heavy -1on Physics at Present and Future Accelerators, Budapest.[8] H. J. Mohring, J. Ranft, Z. Phys., C52 (19911643.[9] K. Kajante, J. Kapusta, L. Mclerran et al., Phys. Rev., D34(1986)2746.[10] J. P. Bondorf, S. I. A. Garpman, J. Zimanyi, Nucl. Phys., A292(1978)320.[11] G. Baym, B. L Friman, J. P. Blaizot et al., Nucl. Phys., A407(1983) 541.[12] P. Koch, B. Muller, J. Rafelski, Phys. Rep., 142(1986)169.[13] G. Roche, private communication.
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He Zejun. Characteristic Dilepton Distribution for Quark-Gluon Matter[J]. Chinese Physics C, 1997, 21(3): 269-274.
He Zejun. Characteristic Dilepton Distribution for Quark-Gluon Matter[J]. Chinese Physics C, 1997, 21(3): 269-274. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Characteristic Dilepton Distribution for Quark-Gluon Matter

    Corresponding author: He Zejun,
  • Institute of Nuclear Research,The Chinese Academy of Sciences,Shanghai 201800

Abstract: Based on the relativistic hydrodynamic model,the dilepton production in the quark-gluon fireball is studied.It is found that with increasing initial temperature the total dilepton yield mconotonicly goes up aftera plateau for the quark-gluon fireball of zero baryon number and shows a peak for the baryon-rich quark-gluon fireball.Such a characteristics as a signal of the quark-gluon matter formation in the collision could be tested in future experiments at CERN and Brookhaven.

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