Gluon saturation and pseudo-rapidity distributions of charged hadrons at RHIC energy regions  

作　　者：魏新兵 冯笙琴 

机构地区：[1]College of Science,China Three Gorges University [2]Key Laboratory of Quark and Lepton Physics(Huazhong Normal University) [3]School of Physics and Technology,Wuhan University

出　　处：《Chinese Physics C》2012年第11期1069-1076,共8页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(10975091);Excellent Youth Foundation of Hubei Scientific Committee(2006ABB036);Education Commission of Hubei Province of China(Z20081302)

摘　　要：We modified the gluon saturation model by rescaling the momentum fraction according to satu- ration momentum and introduced Cooper-Frye hydrodynamic evolution to systematically study the pseudo- rapidity distributions of final charged hadrons at different energies and different centralities for Au-Au collisions in relativistic heavy-ion collisions at the BNL Relativistic Heavy Ion Collider （RHIC）. The features of both gluon saturation and hydrodynamic evolution at different energies and different centralities for Au-Au collisions are investigated in this paper.We modified the gluon saturation model by rescaling the momentum fraction according to satu- ration momentum and introduced Cooper-Frye hydrodynamic evolution to systematically study the pseudo- rapidity distributions of final charged hadrons at different energies and different centralities for Au-Au collisions in relativistic heavy-ion collisions at the BNL Relativistic Heavy Ion Collider （RHIC）. The features of both gluon saturation and hydrodynamic evolution at different energies and different centralities for Au-Au collisions are investigated in this paper.

关 键 词：color glass condensate gluon saturation hydrodynamic evolution 

分 类 号：O572.214[理学—粒子物理与原子核物理]