论文标题
喷气拓扑
Jet Topology
论文作者
论文摘要
我们介绍了持久的贝蒂数字来表征喷气机的拓扑结构。这些拓扑不变的人在给定的尺度阈值下测量喷气分支的多样性和连通性，而它们的持久性记录了每个拓扑特征随着该阈值的变化的演变。特别是有了这些知识，我们能够重建每个喷气机的系统发育树。这些点在Light-Quark与Gluon喷气机的基准场景中得到了证明。这项研究提供了一种拓扑工具来开发喷射标记，并打开了一个新的角度来研究喷气物理学。
We introduce persistent Betti numbers to characterize topological structure of jets. These topological invariants measure multiplicity and connectivity of jet branches at a given scale threshold, while their persistence records evolution of each topological feature as this threshold varies. With this knowledge, in particular, we are able to reconstruct branch phylogenetic tree of each jet. These points are demonstrated in the benchmark scenario of light-quark versus gluon jets. This study provides a topological tool to develop jet taggers, and opens a new angle to look into jet physics.
