各向异性流动系数v$_n$的光束能量依赖性

N. Magdy
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引用次数: 7

摘要

本文给出了Au+Au碰撞的各向异性流动系数v$_{n}$的最新STAR测量结果,其能量范围为$\sqrt{s_{NN}} = 7.7 - 200$~GeV。测量结果表明了谐波数$n$、横向动量($p_T$)、伪速度($\eta$)、碰撞中心性($\ mathm {cent}$)和束能量($\sqrt{s_{NN}}$)的依赖性,这可以作为测试不同初始状态模型的重要约束条件,并有助于精确提取比剪切粘度的温度依赖性。
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Beam energy dependence of the anisotropic flow coefficients v$_n$
Recent STAR measurements of the anisotropic flow coefficients, v$_{n}$, are presented for Au+Au collisions spanning the beam energy range $\sqrt{s_{NN}} = 7.7 - 200$~GeV. The measurements indicate dependences on harmonic number, $n$, transverse momentum ($p_T$), pseudorapidity ($\eta$), collision centrality ($\mathrm{cent}$) and beam energy ($\sqrt{s_{NN}}$) which could serve as important constraints to test different initial-state models and to aid precision extraction of the temperature dependence of the specific shear viscosity.
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