论文标题
密集QCD物质的喷气电荷修改
Jet charge modification in dense QCD matter
论文作者
论文摘要
在这些程序中，我们报告了重型离子相对于LHC质子碰撞的重型离子的最新计算。喷气机在约束中等淋浴进化的理论以及确定在超偏见的核反应中产生的夸克 - 胶状等离子体的特性方面发挥了至关重要的作用。将这些研究扩展到标有标签的喷气机并探索对它们的党派起源敏感的可观测物很重要。量子染色体动力学历史早期引入的平均喷射电荷是启动喷气机的夸克或gluon电荷的代理。在软共线性有效理论的框架内，我们展示了如何在密集的强烈相互作用的物质环境中评估喷气电荷。我们确定可观察到的物体，可以将中等内分支的贡献与同胞素效应隔离，并提出对核核核核碰撞中喷射电荷分布的横向动量依赖性及其相对于质子病例的修改的预测。
In these proceedings we report a recent calculation of the jet charge modification in heavy-ion relative to proton collisions at the LHC. Jets have played an essential role in constraining theories of in-medium parton shower evolution and in determining the properties of the quark-gluon plasma created in ultra-relativistic nuclear reactions. It is important to extend these studies to flavor-tagged jets and explore observables that are sensitive to their partonic origin. The average jet charge, introduced early on in the history of quantum chromodynamics, is a proxy for the electric charge of the quark or gluon that initiates the jet. In the framework of soft-collinear effective theory, we show how to evaluate the jet charge in a dense strongly-interacting matter environments. We identify observables that can isolate the contribution of in-medium branching from isospin effects and present predictions for the transverse momentum dependence of the jet charge distribution in nucleus-nucleus collisions and its modification relative to the proton case.
