"Table 64" of "Measurement of differential cross sections and charge ratios for $t$-channel single top quark production in proton-proton collisions at $\sqrt{s}=$ 13 TeV"

A measurement is presented of differential cross sections for $t$-channel single top quark and antiquark production in proton-proton collisions at a centre-of-mass energy of $13~\rm{TeV}$ by the CMS experiment at the LHC. From a data set corresponding to an integrated luminosity of $35.9~\rm{fb}^{-1}$, events containing one muon or electron and two or three jets are analysed. The cross section is measured as a function of the top quark transverse momentum ($p_{\rm{T}}$), rapidity, and polarisation angle, the charged lepton $p_{\rm{T}}$ and rapidity, and the $p_{\rm{T}}$ of the W boson from the top quark decay. In addition, the charge ratio is measured differentially as a function of the top quark, charged lepton, and W boson kinematic observables. The results are found to be in agreement with standard model predictions using various next-to-leading-order event generators and sets of parton distribution functions. Additionally, the spin asymmetry, sensitive to the top quark polarisation, is determined from the differential distribution of the polarisation angle at parton level to be $0.440 \pm 0.070$, in agreement with the standard model prediction.

本工作报道了大型强子对撞机（Large Hadron Collider, LHC）上CMS实验，在质心系能量13 TeV的质子-质子碰撞中，针对t道单顶夸克与反顶夸克产生过程的微分截面的测量结果。本分析基于积分亮度为35.9 fb⁻¹的实验数据集，对包含1个缪子或电子、2或3个喷注的事例展开研究。本次测量以顶夸克横向动量（$p_{
m{T}}$）、快度与极化角，带电轻子的$p_{
m{T}}$与快度，以及顶夸克衰变产生的W玻色子的$p_{
m{T}}$作为观测变量。此外，本工作还针对顶夸克、带电轻子与W玻色子的运动学可观测量，对电荷比进行了差分测量。研究结果与采用多种次领头阶事例产生器及多套部分子分布函数所得到的标准模型预言相符。此外，针对顶夸克极化敏感的自旋不对称度，通过部分子层次下极化角的微分分布被测定为$0.440 pm 0.070$，该结果同样与标准模型预言一致。