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arXiv 2206.05855hep-phnucl-th
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主导阶、次主导阶和非微扰部分子碰撞核:静态和演化介质中的效应

Leading order, next-to-leading order, and non-perturbative parton collision kernels: effects in static and evolving media

Rouzbeh Modarresi Yazdi, Shuzhe Shi, Charles Gale, Sangyong Jeon

摘要:

在强相互作用介质中运动的高能部分子通过发射辐射和与介质成分碰撞而失去能量。非微扰,下一个领先的顺序和领先的顺序碰撞内核内实现AMY-McGill形式主义。由此产生的胶子发射率进行评估和比较,考虑散射发生在一块砖的夸克-胶子等离子体,以及在一个现实的模拟铅铅,碰撞在$\sqrt{s}=2.76$ ATEV使用MARTINI。我们发现,使用不同的内核导致的淬火的硬部分子的变化可能是重要的,这取决于强耦合常数$α_s$的整体值。

英文摘要:

Energetic partons traveling in a strongly interacting medium lose energy by emitting radiation and through collisions with medium constituents. Non-perturbative, next-to-leading order and leading order collision kernels are implemented within AMY-McGill formalism. The resulting gluon emission rates are then evaluated and compared by considering scattering occurring in a brick of quark-gluon plasma, as well as in a realistic simulation of Pb-Pb, collisions at $\sqrt{s}=2.76$ ATeV using MARTINI. We find that the variations in quenching of hard partons resulting from using different kernels can be important, depending on the overall value of the strong coupling constant $α_s$.

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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