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arXiv 0705.1059nucl-th
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射流淬火与椭圆流

Jet quenching and elliptic flow

A. K. Chaudhuri

摘要:

在喷流淬灭中,一个硬QCD部分子在碎裂成强子喷流之前,将其能量的一部分沉积在介质中,导致高$p_T$强子的产生受到抑制。假设沉积的能量迅速热化,我们模拟了随后的QGP流体的流体动力学演化。显式模拟的Au+Au碰撞和没有淬火射流表明,椭圆流大大减少了射流事件。该结果可用于重离子碰撞中喷流事件的识别。

英文摘要:

In jet quenching, a hard QCD parton, before fragmenting into a jet of hadrons, deposits a fraction of its energy in the medium, leading to suppressed production of high-$p_T$ hadrons. Assuming that the deposited energy quickly thermalizes, we simulate the subsequent hydrodynamic evolution of the QGP fluid. Explicit simulation of Au+Au collision with and without a quenching jet indicate that elliptic flow is greatly reduced in a jet event. The result can be used to identify the jet events in heavy ion collisions.

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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