"Table 115" 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"

Absolute double-differential cross-section as a function of $p_{T}^{t\bar{t}}$ vs $m^{t\bar{t}}$ at particle level in the resolved topology in 400.0 GeV < $m^{t\bar{t}}$ < 550.0 GeV. Note that the values shown here are obtained by propagating the individual uncertainties to the measured cross-sections, while the covariance matrices are evaluated using pseudo-experiments as described in the text. The measured differential cross-section is compared with the prediction obtained with the Powheg+Pythia8 Monte Carlo generator.在400.0 GeV < $m^{tar{t}}$ < 550.0 GeV的能区中，分辨型拓扑（resolved topology）下粒子级层面的顶夸克-反顶夸克对绝对双微分截面（absolute double-differential cross-section），以顶夸克-反顶夸克对横向动量$p_{T}^{tar{t}}$与顶夸克-反顶夸克对不变质量$m^{tar{t}}$为双变量函数。请注意，此处展示的数值是通过将各独立不确定度传递至测得的截面后得到的，而协方差矩阵（covariance matrices）则按照正文中所述方法，利用伪实验（pseudo-experiments）进行计算。本数据集将测得的微分截面与使用Powheg+Pythia8蒙特卡洛发生器得到的理论预言进行了对比。