Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2002-05-15
Phys.Rev. C66 (2002) 054904
Physics
Nuclear Physics
Nuclear Theory
28 pages, 21 figures, REVTeX4, one figure is added and some figures are replaced
Scientific paper
10.1103/PhysRevC.66.054904
Based on a hydrodynamical model, we compare 130 GeV/$A$ Au+Au collisions at RHIC and 17 GeV/$A$ Pb+Pb collisions at SPS. The model well reproduces the single-particle distributions of both RHIC and SPS. The numerical solution indicates that huge amount of collision energy in RHIC is mainly used to produce a large extent of hot fluid rather than to make a high temperature matter; longitudinal extent of the hot fluid in RHIC is much larger than that of SPS and initial energy density of the fluid is only 5% higher than the one in SPS. The solution well describes the HBT radii at SPS energy but shows some deviations from the ones at RHIC.
Hirano Tetsufumi
Morita Kenji
Muroya Shin
Nonaka Chiho
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