论文标题
在LHC Energies质子 - 蛋白质碰撞中存在重型流动过程中，定义了基本事实活动
Defining the Underlying-Event Activity in the Presence of Heavy-Flavour Processes in Proton-Proton Collisions at LHC Energies
论文作者
论文摘要
我们在$ \ sqrt {s} $ = 13 tev中使用Pythia 8 Monte Carlo Event Generator进行了针对PP碰撞的领先过程的重型生产的系统分析。我们比较了通过在领先的强子上触发的事件以及由重建喷气机触发的事件的结果。我们表明，重型流动碎片的运动学使基础事件的表征变得复杂，并且使用领先带电的最终状态强子作为触发的通常方法可能会冲走领先过程与与此相关的重型弹药之间的连接。但是，由轻或重型飞机触发的事件保留了这种连接，并带来了有关基础重型风味生产过程的更多直接信息，但也可能导致对Gluon辐射的不必要的敏感性。当前工作中概述的方法提供了验证喷气机中光和重型风味生产和基础事件的模型计算的手段。
We present a systematic analysis of heavy-flavour production in the underlying event in connection to a leading hard process in pp collisions at $\sqrt{s}$ = 13 TeV, using the PYTHIA 8 Monte Carlo event generator. We compare results from events selected by triggering on the leading hadron, as well as those triggered with reconstructed jets. We show that the kinematics of heavy-flavour fragmentation complicates the characterisation of the underlying event, and the usual method which uses the leading charged final-state hadron as a trigger may wash away the connection between the leading process and the heavy-flavour particle created in association with that. Events triggered with light or heavy-flavour jets, however, retain this connection and bring more direct information on the underlying heavy-flavour production process, but may also import unwanted sensitivity to gluon radiation. The methods outlined in the current work provide means to verify model calculations for light and heavy-flavour production in the jet and the underlying event in great details.
