"Table 335" 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）轻子+喷注道（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（single- and double-differential cross-section）测量结果。本分析考虑了分辨型（resolved）与提速型（boosted）两种拓扑结构，并以多个表征顶夸克、顶夸克-反夸克对（$tar{t}$）系统以及喷注多重数（jet multiplicities）的运动学变量（kinematic variables）为函数形式给出测量结果。本研究使用欧洲核子研究中心（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（centre-of-mass energy）质子-质子碰撞（pp collisions）数据，对应积分亮度（integrated luminosity）为36 fb⁻¹。鉴于大型强子对撞机上顶夸克-反夸克对产生截面较大，此类测量可用于细致研究顶夸克的产生与衰变性质，从而实现对多款蒙特卡洛产生器（Monte Carlo generators）以及固定阶标准模型（Standard Model）理论预言的精确检验。整体而言，理论预言与实验数据之间展现出良好的一致性。