Evolution-dominated Hydrodynamic Model and the Pseudorapidity Distributions of the Charged Particles Produced in Cu-Cu Collisions at BNL-RHIC Energies

JIANG Zhijin; WANG Jie; ZHANG Haili; MA Ke

doi:10.11804/NuclPhysRev.31.04.460

JIANG Zhijin, WANG Jie, ZHANG Haili, MA Ke. Evolution-dominated Hydrodynamic Model and the Pseudorapidity Distributions of the Charged Particles Produced in Cu-Cu Collisions at BNL-RHIC Energies[J]. Nuclear Physics Review, 2014, 31(4): 460-467. DOI: 10.11804/NuclPhysRev.31.04.460

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Evolution-dominated Hydrodynamic Model and the Pseudorapidity Distributions of the Charged Particles Produced in Cu-Cu Collisions at BNL-RHIC Energies

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The charged particles resulting in high energy heavy ion collisions consist of two parts: One is from the hot and dense matter produced in collisions. The other is the leading particles. We suppose that the hot and dense matter expands and freezes out into the charged particles according to the evolution-dominated hydrodynamics, and the leading particles are from participants with approximately the same energy. On the basis of this assumption, we get the pseudorapidity distributions of the charged particles produced in high energy heavy ion collisions, and make a comparison with the experimental data presented by PHOBOS Collaboration at BNL-RHIC in Cu-Cu collisions at (s_NN)^1/2= 62.4 and 200 GeV. The theoretical predictions are in good accordance with experimental measurements.

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Evolution-dominated Hydrodynamic Model and the Pseudorapidity Distributions of the Charged Particles Produced in Cu-Cu Collisions at BNL-RHIC Energies

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