论文标题
比较马提尼酒和Cujet模型的喷气量：喷气机和喷气子结构的中等修改
Comparing the MARTINI and CUJET models for jet-quenching: Medium modification of jets and jet substructure
论文作者
论文摘要
重离子碰撞事件中的初始硬散射产生的喷射因与周围形成的颜色固定介质的相互作用而失去了能量：夸克 - 胶状等离子体（QGP）。 JET-MEDIUM相互作用构成了QGP研究的重要理论和实验领域，并且已经提出了具有不同假设的各种模型来描述它们。对这些模型进行公平而直接的比较，要求固定模拟的所有其他方面，这在这项工作中可以通过依靠Jetscape框架来实现。我们采用Jetscape直接，全面地比较了两个成功的能源损失模型：Cujet和Martini。我们将模型与射流光谱和子结构可观察物的测量结果进行了比较。随着强耦合的分别调整，我们发现这两个模型在带电的Hadron和Jets的核修饰因子上彼此之间相互吻合，该因子的Hadron和Jets具有圆锥大小$ r = 0.4 $。在碎片功能，喷射形状和锥大小依赖性喷气$ r _ {\ mathrm {aa}} $中报告了系统差异。
Jets produced by the initial hard scattering in heavy ion collision events lose energy due to interactions with the color-deconfined medium formed around them: the quark-gluon plasma (QGP). Jet-medium interactions constitute an important theoretical and experimental field for studies of QGP, and various models with different assumptions have been proposed to describe them. A fair and direct comparison of these models requires that all other aspects of the simulation be fixed, which is achieved in this work by relying on the JETSCAPE framework. We employ JETSCAPE to directly and comprehensively compare two successful energy loss models: CUJET and MARTINI. We compare the models with the results of measurements of jet spectra and substructure observables. With the strong coupling tuned separately, we find that the two models broadly agree with each other in nuclear modification factors for charged hadrons and jets with cone size $R=0.4$. Systematic differences are reported in fragmentation functions, jet shape, and cone size dependent jet $R_{\mathrm{AA}}$.
