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Elliptic flow of direct photons in Au+Au collisions at 200 GeV

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【作者】刘复明； Tetsufumi Hirano； Klaus Werner；朱燕；

【Author】 LIU Fu-Ming 1;1) Tetsufumi Hirano 2 Klaus Werner 3 ZHU Yan1 1 Institution of particle physics,Huazhong Normal University,Wuhan 430079,China 2 Department of Physics,The University of Tokyo,113-0033,Japan 3 Laboratoire SUBATECH,University of Nantes - IN2P3/CNRS - Ecole desMines,Nantes,France

【机构】 Institution of particle physics,Huazhong Normal University； Department of Physics,The University of Tokyo； Laboratoire SUBATECH,University of Nantes-IN2P3/CNRS-Ecole desMines；

【摘要】 The rapidity dependence of the elliptic flow of direct photons in Au+Au collisions at√ s NN = 200 GeV are predicted,based on a three-dimensional ideal hydrodynamic description of the hot and dense matter.The rapidity dependence of the elliptic flow v 2 (y) of direct photons (mainly thermal photons) is very sensitive to the initial energy density distribution along longitudinal direction,which provides a useful tool to extract the realistic initial condition from measurements.更多还原

【Abstract】 The rapidity dependence of the elliptic flow of direct photons in Au+Au collisions at√ s NN = 200 GeV are predicted,based on a three-dimensional ideal hydrodynamic description of the hot and dense matter.The rapidity dependence of the elliptic flow v 2 (y) of direct photons (mainly thermal photons) is very sensitive to the initial energy density distribution along longitudinal direction,which provides a useful tool to extract the realistic initial condition from measurements.更多还原

【关键词】 thermal photons； elliptic flow； hydrodynamics；
【Key words】 thermal photons； elliptic flow； hydrodynamics；

【基金】 Supported by National Natural Science Foundation of China (10975059);MOE of China (IRT0624)

【文献出处】中国物理C ,Chinese Physics C , 编辑部邮箱 ,2010年09期

【分类号】O571.4
【下载频次】19

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