%0 Journal Article %T Gluon saturation and pseudo-rapidity distributions of charged hadrons at RHIC energy regions %A Xin-Bin Wei %A Sheng-Qin Feng %J Physics %D 2012 %I arXiv %R 10.1088/1674-1137/36/11/006 %X We modified the gluon saturation model by rescaling the momentum fraction according to saturation momentum and introduced the 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 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. %U http://arxiv.org/abs/1202.2174v3