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arXiv 0907.4843nucl-th
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2009年夸克物质体动力学研究综述

A Summary of Bulk Dynamics from Quark Matter 2009

Derek Teaney

摘要:

本文综述了重离子碰撞中椭圆流测量的最新进展。这些测量清楚地表明,随着系统尺寸从外围碰撞增加到中心碰撞,流体动力学开始发展。在此过渡期间,由流体动力学描述的动量范围随着系统从动力学状态向流体动力学状态的进展而增加。一旦包括剪切粘度,许多与理想流体力学的系统偏差就可以毫不费力地再现。为了从数据中提取剪切粘度,可以使用动力学理论来确定椭圆流的哪些方面反映了微观相互作用的细节,以及哪些方面反映了基本的输运系数。我还审查了确定的强子椭圆流和预测的流体动力学的大型强子对撞机。

英文摘要:

I review the recent progress in measuring elliptic flow in heavy ion collisions. These measurements show clearly how hydrodynamics starts to develop as the system size is increased from peripheral to central collisions. During this transition, the momentum range described by hydrodynamics increases as the system progresses from a kinetic to a hydrodynamic regime. Many of the systematic deviations from ideal hydrodynamics are reproduced effortlessly once the shear viscosity is included. In order to extract the shear viscosity from the data, kinetic theory can be used to determine which aspects of the elliptic flow reflect the details of the microscopic interactions, and which aspects reflect the underlying transport coefficients. I also review the identified hadron elliptic flow and the predictions of hydrodynamics for the LHC.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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