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Off-equilibrium corrections to energy and conserved charge densities in the relativistic fluid in heavy-ion collisions

机译:对高离子碰撞中相对论流体中的能量和保守电荷密度的偏离平衡校正

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摘要

Dissipative processes in relativistic fluids are known to be important in analyses of the hot QCD matter created in high-energy heavy-ion collisions. In this work, I consider dissipative corrections to energy and conserved charge densities, which are conventionally assumed to be vanishing but could be finite. Causal dissipative hydrodynamics is formulated in the presence of these dissipative currents. The relation between hydrodynamic stability and transport coefficients is discussed. I then study their phenomenological consequences on the observables of heavy-ion collisions in numerical simulations. It is shown that particle spectra and elliptic flow can be visibly modified.
机译:已知相对论液中的耗散过程在高能量重离子碰撞中产生的热QCD物质的分析中是重要的。 在这项工作中,我考虑对能源和保守的电荷密度的耗散矫正,这些充电密度通常被认为是消失的,但可能是有限的。 因果耗散流体动力学在这些耗散电流存在下配制。 讨论了流体动力稳定性和传输系数之间的关系。 然后,我研究了对数值模拟中重离子碰撞的可观察结果的现象学结果。 结果表明,可以明显地改变粒子光谱和椭圆流。

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