Hadronic dissipative effects on transverse dynamics at RHIC

被引:8
|
作者
Hirano, T. [1 ]
Heinz, U. [2 ,3 ]
Kharzeev, D. [4 ]
Lacey, R. [5 ]
Nara, Y. [6 ]
机构
[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
[2] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
[3] CERN, Dept Phys, Div Theory, CH-1211 Geneva 23, Switzerland
[4] Brookhaven Natl Lab, Dept Phys, Nucl Theory Grp, Upton, NY 11973 USA
[5] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA
[6] Akita Int Univ, Akita 0101211, Japan
关键词
D O I
10.1088/0954-3899/35/10/104124
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We simulate the dynamics of Au+Au collisions at the relativistic heavy ion collider (RHIC) with a hybrid model that treats the quark-gluon plasma macroscopically as an ideal fluid, but models the hadron resonance gas microscopically using a hadronic cascade. We find that much of the mass-ordering pattern for nu(2)(p(T)) observed at RHIC is generated during the hadronic stage due to build-up of additional radial flow. We also find that the mass-ordering pattern is violated for phi mesons due to small interaction cross section in the hadron resonance gas.
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页数:4
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