论文标题
推动重型离子碰撞中的喷气喷射子结构测量
Pushing forward jet substructure measurements in heavy-ion collisions
论文作者
论文摘要
遍历在重离子碰撞中产生的夸克 - 胶子等离子体的能量喷射是研究这种新型QCD物质的出色探针。然而，目前，我们对实验中测得的JETVERBABLE的新月形数量进行清晰的理论解释的能力受到了选择偏见的阻碍。这项工作的目的是最大程度地减少与Quark-vs. Gluon引发的喷射分数相关的选择偏差，以评估其他中等诱导的效果的存在，即颜色的脱碳，通过探索JET Subscorture可观察到的速度依赖性。到目前为止，中等程度上的所有喷气子结构测量结果都表明，重离子飞机比真空飞机窄。我们通过分析和蒙特卡洛模拟显示，如果狭窄的效果持续存在，在前速度上，夸克发射的喷射分数大大增加了，则可以作为对重型离子碰撞中颜色分解动力学的明确实验性观察。
Energetic jets that traverse the quark-gluon plasma created in heavy-ion collisions serve as excellent probes to study this new state of deconfined QCD matter. Presently, however, our ability to achieve a crisp theoretical interpretation of the crescent number of jet observables measured in experiments is hampered by the presence of selection biases. The aim of this work is to minimise those selection biases associated to the modification of the quark- vs. gluon-initiated jet fraction in order to assess the presence of other medium-induced effects, namely color decoherence, by exploring the rapidity dependence of jet substructure observables. So far, all jet substructure measurements at mid-rapidity have shown that heavy-ion jets are narrower than vacuum jets. We show both analytically and with Monte Carlo simulations that if the narrowing effect persists at forward rapidities, where the quark-initiated jet fraction is greatly increased, this could serve as an unambiguous experimental observation of color decoherence dynamics in heavy-ion collisions.
