Energy dependence of elliptic flow over a large pseudorapidity range in Au+Au collisions at RHIC
Energy dependence of elliptic flow over a large pseudorapidity range in Au+Au collisions at RHIC
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DOI：
10.1103/physrevlett.94.122303
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发表时间：
2004-06
期刊：
影响因子：
--
通讯作者：
Phobos Collaboration
中科院分区：
文献类型：
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作者：
Phobos Collaboration
本文描述了在相对论重离子对撞机（RHIC）上，用PHOBOS探测器测量了Au+Au碰撞中带电粒子椭圆流的能量依赖性。在√ s NN = 19.6、62.4、130和200 GeV的碰撞能量下获取的数据显示了大范围的伪快度。这些结果，当绘制为η ′ =| η |− y束，在整个η ′中近似线性，这意味着粒子产生的动力学没有急剧变化，作为伪快度或增加束能量的函数。
This paper describes the measurement of the energy dependence of elliptic flow for charged particles in Au+Au collisions using the PHOBOS detector at the Relativistic Heavy Ion Collider (RHIC). Data taken at collision energies of √ s NN = 19.6, 62.4, 130 and 200 GeV are shown over a wide range in pseudorapidity. These results, when plotted as a function of η ′ = | η | − y beam , scale with approximate linearity throughout η ′ , implying no sharp changes in the dynamics of particle production as a function of pseudorapidity or increasing beam energy.