Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-01-22
Chin. Phys. B18:4786, 2009
Physics
Nuclear Physics
Nuclear Theory
4 pages, 4 figures
Scientific paper
10.1088/1674-1056/18/11/030
The particle spectra and Hanbury-Brown Twiss (HBT) radius of Au+Au collisions at RHIC energy are investigated by a hydrodynamical expanding source with both shear and bulk viscosities ($\zeta$). With a large width of the ratio of $\zeta$ to entropy density $s$, both the particle transverse momentum spectra and the ratio $R_{out}/R_{side}$ of HBT radii in the direction of the total transverse momentum of detected two particles ($R_{out}$) and perpendicular to both this direction and the beam direction ($R_{side}$) become a little steeper.
Li Jia-Wei
Ma Guo Lin
Ma Yong-Ge
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