<PR>Distribution in Ultrarelativistic Nuclear Collisions

QIAN Lu

Chinese Physics C> 1991, Vol. 15> Issue(10) : 906-912

Distribution in Ultrarelativistic Nuclear Collisions

QIAN Lu ^,

Physics Department East China Normal University,Shanghai 200062

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Abstract：
The distribution of average transverse-momentum of secondary particles produced in the central region of ultrarelativistic nuclear collisions is studied quantatively with the hydrodynamic model and is compared with JACEE data.The energy density function in SU(3) gauge theory given by Monte-Carlo Calculation is employed to describe the state of the hot matter collision.It is found that the abnormal rapid rise of at high initial energy density region is not from the hydrodynamic motion of quark-gluon plasma.The T> distributions with different initial thermal time and initial radius have been discussed in detail,he main character of distribution does not change with the variation of initial parameters.

References

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K. Kajantie, R. Raitio, and P. V. Ruuskanen, Nuel. Phys., B222(1983), 152.[2] D. Bjorken, Phys. Rev., D27(1983), 140.[3] K. Kajantie, H. I. Miettinen, Z. Phys, C9(1981), 341.[4] L. P. Csernai, Phys. Rea., D29(1984), 1945[5] A. Breakstone et al., Phys. Lett., 115B(1982), 64.[6] T. H. Burnett et al.. Phys. Rea. Lett., 50(1983), 2062.[7] L. Van Hove, Phys. Lett ,118B(1982), 138[8] J. Kapusta, S. Pratt, L. Mclerran, and H. von Gersdorff, Phys,163B(1985), 253.[9] H.von Gersdorff, L. Mclerran, M. Kataja, P. V. Ruuskanen, Phys: Rev., D34(1986), 794.[10] T. Celik, J. Engels,and H. Satz, Nucl. Phys., B256(1985), 670.[11] Xin-nian Wang and R, C. Hwa, Phys, Rev, D35(1987), 3409.[12] J.P. Blaizot, ACTA PHYSICA POLONICA, B18(1987), 659.[13] G. Baym, B. L. Friman,J. P. Blaizot, M. Soyeur, W. Czyz, Nucl, Phys, A407(1983), 541.

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QIAN Lu. Distribution in Ultrarelativistic Nuclear Collisions[J]. Chinese Physics C, 1991, 15(10): 906-912.

QIAN Lu. Distribution in Ultrarelativistic Nuclear Collisions[J]. Chinese Physics C, 1991, 15(10): 906-912. 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

Distribution in Ultrarelativistic Nuclear Collisions

QIAN Lu ^,

Corresponding author: QIAN Lu,

Physics Department East China Normal University,Shanghai 200062

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1991-10-05

Abstract: The distribution of average transverse-momentum of secondary particles produced in the central region of ultrarelativistic nuclear collisions is studied quantatively with the hydrodynamic model and is compared with JACEE data.The energy density function in SU(3) gauge theory given by Monte-Carlo Calculation is employed to describe the state of the hot matter collision.It is found that the abnormal rapid rise of at high initial energy density region is not from the hydrodynamic motion of quark-gluon plasma.The T> distributions with different initial thermal time and initial radius have been discussed in detail,he main character of distribution does not change with the variation of initial parameters.