"Extra Figure u8cp[f186]" of "Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions"

Measurements of jet substructure describing the composition of quark- and gluon-initiated jets are presented. Proton-proton (pp) collision data at sqrt(s)=13 TeV collected with the CMS detector are used, corresponding to an integrated luminosity of 35.9/fb. Generalized angularities are measured that characterize the jet substructure and distinguish quark- and gluon-initiated jets. These observables are sensitive to the distributions of transverse momenta and angular distances within a jet. The analysis is performed using a data sample of dijet events enriched in gluon-initiated jets, and, for the first time, a Z+jet event sample enriched in quark-initiated jets. The observables are measured in bins of jet transverse momentum, and as a function of the jet radius parameter. Each measurement is repeated applying a "soft drop" grooming procedure that removes soft and large angle radiation from the jet.For easier navigation, figures are named with a code with each letter/number representing in the following order: ungroomed/groomed, AK4/AK8, charged, multiplicity/pTD2/thrust/width/LHA, [central dijet/forward dijet/Z+jet, PT].

本数据集呈现了用于描述夸克引发喷注（quark-initiated jet）与胶子引发喷注（gluon-initiated jet）组成的喷注子结构（jet substructure）测量结果。研究使用了CMS探测器采集的质心系能量√s=13 TeV的质子-质子（pp）碰撞数据，对应积分亮度为35.9 fb⁻¹。我们测量了广义角距（generalized angularities），该可观测量可用于表征喷注子结构并区分两类喷注。这些可观测量对喷注内部的横向动量（transverse momentum）分布与角距离（angular distance）分布具有敏感性。分析采用了富含胶子引发喷注的双喷注（dijet）事件样本，以及首次使用的富含夸克引发喷注的Z+喷注事件样本。本测量按喷注横向动量的分箱形式开展，同时作为喷注半径参数（jet radius parameter）的函数进行呈现。每项测量均重复应用了"软滴（soft drop）"修整程序，该程序可移除喷注内的软辐射与大角度辐射。为便于导航，图表采用编码方式命名，各字母/数字依次代表：未修整/已修整、AK4/AK8、带电粒子、多重数/pTD2/喷注推力/宽度/LHA、[中心区双喷注/前向区双喷注/Z+喷注、横向动量（PT）]。