"Table 857" of "Measurements of top-quark pair differential and double-differential cross-sections in the $\ell$+jets channel with $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector"

Single- and double-differential cross-section measurements are presented for the production of top-quark pairs, in the lepton + jets channel at particle and parton level. Two topologies, resolved and boosted, are considered and the results are presented as a function of several kinematic variables characterising the top and $t\bar{t}$ system and jet multiplicities. The study was performed using data from pp collisions at centre-of-mass energy of 13 TeV collected in 2015 and 2016 by the ATLAS detector at the CERN Large Hadron Collider (LHC), corresponding to an integrated luminosity of 36 fb$^{−1}$. Due to the large $t\bar{t}$ cross-section at the LHC, such measurements allow a detailed study of the properties of top-quark production and decay, enabling precision tests of several Monte Carlo generators and fixed-order Standard Model predictions. Overall, there is good agreement between the theoretical predictions and the data.

本研究报道了粒子级（particle level）与部分子级（parton level）下，轻子+喷注通道（lepton + jets channel）中顶夸克对（top-quark pair）产生过程的单微分与双微分截面测量结果。本分析考虑了分辨型与增强型两种拓扑结构，结果以多个表征顶夸克与顶夸克-反顶夸克（$tar{t}$）系统以及喷注多重数的运动学变量为函数形式给出。本研究利用欧洲核子研究组织（CERN）大型强子对撞机（Large Hadron Collider, LHC）上的ATLAS探测器在2015年与2016年采集的13 TeV质心系能量质子-质子（pp）对撞数据完成，对应积分亮度为36 fb⁻¹。由于大型强子对撞机上顶夸克-反顶夸克对产生截面极高，此类截面测量可用于细致研究顶夸克的产生与衰变性质，进而实现对多款蒙特卡洛（Monte Carlo）模拟程序以及标准模型（Standard Model）固定阶理论预言的精确检验。总体而言，理论预言与实验数据之间表现出良好的一致性。