"Table 137" of "Measurements of $t\bar{t}$ differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in $pp$ collisions at $\sqrt{s}=13\,$ TeV using the ATLAS detector"

Measurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and $t\bar{t}$ system kinematic observables using proton--proton collisions at a center-of-mass energy of $\sqrt{s} = 13$ TeV. The data set corresponds to an integrated luminosity of $36.1$ fb$^{-1}$, recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Events with two large-radius jets in the final state, one with transverse momentum $p_{\rm T} > 500$ GeV and a second with $p_{\rm T} > 350$ GeV, are used for the measurement. The top-quark candidates are separated from the multijet background using jet substructure information and association with a $b$-tagged jet. The measured spectra are corrected for detector effects to a particle-level fiducial phase space and a parton-level limited phase space, and are compared to several Monte Carlo simulations by means of calculated $\chi^2$ values. The cross-section for $t\bar{t}$ production in the fiducial phase-space region is $292 \pm 7 \rm{(stat)} \pm 76 \rm{(syst)}$ fb, to be compared to the theoretical prediction of $384 \pm 36$ fb.本数据集利用欧洲核子研究中心（CERN）大型强子对撞机（Large Hadron Collider, LHC）上的ATLAS探测器采集的质子-质子碰撞数据，在质心系能量√s=13 TeV的条件下，以顶夸克及顶夸克-反顶夸克（tar{t}）系统的运动学可观测量为变量，测量高动量增强成对产生顶夸克的微分截面。所用实验数据采集于2015至2016年，积分亮度达36.1 fb⁻¹。分析过程选取末态存在两个大半径喷注的事件：其中一个喷注的横向动量p_T > 500 GeV，另一个喷注的横向动量p_T > 350 GeV。借助喷注子结构信息以及与b标记喷注（b-tagged jet）的关联，将顶夸克候选事件与多喷注本底区分开。对测量得到的能谱进行校正以消除探测器效应的影响，得到粒子级 fiducial相空间（fiducial phase space）与部分子级限定相空间的校正结果，并通过计算χ²值与多种蒙特卡洛（Monte Carlo, MC）模拟结果开展对比。在该 fiducial相空间区域内，顶夸克-反顶夸克对产生的截面测量结果为292 ± 7(统计不确定性) ± 76(系统不确定性) fb，可与理论预言值384 ± 36 fb进行对比。