首页> 外文会议>Winter Workshop on Nuclear Dynamics; 20060311-18; La Jolla,CA(US) >Scaling Characteristics of Azimuthal Anisotropy at RHIC
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Scaling Characteristics of Azimuthal Anisotropy at RHIC

机译:RHIC方位各向异性的标度特性

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Recent differential measurements of elliptic flow are used to probe several hydrodynamic scaling predictions. Eccentricity scaling is observed for Cu+Cu and Au+Au collisions at (S_(NN))~(1/2) = 200 GeV, suggesting essentially complete thermaliza-tion of the high energy density matter produced in these collisions. An estimate of the speed of sound is also obtained from the eccentricity scaled elliptic flow. The predicted mass scaling is observed for particles with transverse kinetic energy KE_T up to ~1 GeV. For KE_T values above ~1 GeV, valence quark number scaling compatible with partonic degrees of freedom is observed.
机译:椭圆流量的最新差分测量用于探究几个流体动力学比例的预测。在(S_(NN))〜(1/2)= 200 GeV处,观察到Cu + Cu和Au + Au碰撞的偏心定标,表明这些碰撞中产生的高能量密度物质基本上完全热化。还可以从偏心缩放的椭圆流中获得声速的估计。观察到横向动能KE_T高达〜1 GeV的颗粒的预测质量标度。当KE_T值大于〜1 GeV时,观察到与部分自由度兼容的价夸克数标度。

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