"Table 7" of "Measurement of detector-corrected observables sensitive to the anomalous production of events with jets and large missing transverse momentum in $pp$ collisions at $\sqrt{s} = 13$ TeV using the ATLAS detector"

CERN-LHC. Observables sensitive to the anomalous production of events containing hadronic jets and missing momentum in the plane transverse to the proton beams at the Large Hadron Collider are presented. The observables are defined as a ratio of cross sections, for events containing jets and large missing transverse momentum to events containing jets and a pair of charged leptons from the decay of a $Z/\gamma^\ast$ boson. This definition minimises experimental and theoretical systematic uncertainties in the measurements. This ratio is measured differentially with respect to a number of kinematic properties of the hadronic system in two phase-space regions; one inclusive single-jet region and one region sensitive to vector-boson-fusion topologies. The data are found to be in agreement with the Standard Model predictions and used to constrain a variety of theoretical models for dark-matter production, including simplified models, effective field theory models, and invisible decays of the Higgs boson. The measurements use 3.2 fb${}^{-1}$ of proton-proton collision data recorded by the ATLAS experiment at a centre-of-mass energy of 13 TeV and are fully corrected for detector effects, meaning that the data can be used to constrain new-physics models beyond those shown in this paper. Numerator and denominator ($\geq 1$ jet): - $p_\text{T}^\text{miss} > 200$ GeV - no additional electron or muon with $p_\text{T}$(lepton)>7 GeV and |$\eta$(lepton)|<2.5 - |$y$(jet)|<4.5 and $p_\text{T}$(jet)>25 GeV - $\Delta\phi$(jet,$p_\text{T}^\text{miss}$) > 0.4 for the four leading jets with $p_\text{T}$(jet)>30 GeV - leading $p_\text{T}$(jet)>120 GeV and |$\eta$(jet)|<2.4 Numerator and denominator (VBF): - $p_\text{T}^\text{miss} > 200$ GeV - no additional electron or muon with $p_\text{T}$(lepton)>7 GeV and |$\eta$(lepton)|<2.5 - |$y$(jet)|<4.5 and $p_\text{T}$(jet)>25 GeV - $\Delta\phi$(jet,$p_\text{T}^\text{miss}$) > 0.4 for the four leading jets with $p_\text{T}$(jet)>30 GeV - leading pT(jet)>80 GeV and subleading pT(jet)>50 GeV - $m_\text{jj}$>200 GeV - no additional jets with $p_\text{T}$(jet)>25 GeV inside rapidity interval Denominator only ($\geq 1$ jet and VBF): - leading $p_\text{T}$(lepton)>80 GeV and |$\eta$(lepton)|<2.5 - subleading $p_\text{T}$(lepton)>7 GeV and |$\eta$(lepton)|<2.5 - 66 GeV $< m_{\ell\ell}<$ 116 GeV - $\Delta R$(jet,lepton)>0.5, otherwise jet is removed

欧洲核子研究中心（CERN）大型强子对撞机（Large Hadron Collider, LHC）数据集：本研究呈现了在大型强子对撞机质子束横向平面内，对包含强子喷注与横向缺失动量的反常产生事件敏感的可观测量。该可观测量被定义为两类过程的截面比值：一类是包含喷注与大横向缺失动量的事件，另一类是包含喷注与来自$Z/gamma^*$玻色子衰变的一对带电轻子的事件。该定义最大限度压低了测量中的实验与理论系统不确定性。

该截面比值在两个相空间区域内，依据强子系统的多项运动学特性进行差分测量：一个是单喷注包容区域，另一个是对矢量玻色子聚变（vector-boson-fusion, VBF）拓扑结构敏感的区域。测量数据与标准模型（Standard Model, SM）预言相符，且被用于约束多种暗物质产生的理论模型，包括简化模型、有效场论（effective field theory, EFT）模型以及希格斯玻色子的不可见衰变模式。

本次测量使用了ATLAS实验在13 TeV质心系能量下采集的3.2 fb⁻¹质子-质子碰撞数据，并对探测器效应完成了完全校正，这意味着该数据集可用于约束本文未涵盖的各类新物理模型。

### 选取条件
#### 分子与分母（≥1个喷注）：
- 横向缺失动量 $p_ ext{T}^ ext{miss} > 200$ GeV
- 不存在满足 $p_ ext{T}$(轻子) > 7 GeV 且 $|eta$(轻子)| < 2.5 的额外电子或μ子
- 喷注快度 $|y$(喷注)| < 4.5 且喷注横向动量 $p_ ext{T}$(喷注) > 25 GeV
- 对于 $p_ ext{T}$(喷注) > 30 GeV 的前四大喷注，满足方位角差 $Deltaphi$(喷注, $p_ ext{T}^ ext{miss}$) > 0.4
- 领头喷注横向动量 $p_ ext{T}$(喷注) > 120 GeV 且 $|eta$(喷注)| < 2.4

#### 分子与分母（矢量玻色子聚变，VBF）：
- 横向缺失动量 $p_ ext{T}^ ext{miss} > 200$ GeV
- 不存在满足 $p_ ext{T}$(轻子) > 7 GeV 且 $|eta$(轻子)| < 2.5 的额外电子或μ子
- 喷注快度 $|y$(喷注)| < 4.5 且喷注横向动量 $p_ ext{T}$(喷注) > 25 GeV
- 对于 $p_ ext{T}$(喷注) > 30 GeV 的前四大喷注，满足方位角差 $Deltaphi$(喷注, $p_ ext{T}^ ext{miss}$) > 0.4
- 领头喷注横向动量 > 80 GeV，次领头喷注横向动量 > 50 GeV
- 双喷注不变质量 $m_ ext{jj} > 200$ GeV
- 快度区间内不存在 $p_ ext{T}$(喷注) > 25 GeV 的额外喷注

#### 仅分母（≥1个喷注且满足矢量玻色子聚变条件）：
- 领头轻子横向动量 $p_ ext{T}$(轻子) > 80 GeV 且 $|eta$(轻子)| < 2.5
- 次领头轻子横向动量 $p_ ext{T}$(轻子) > 7 GeV 且 $|eta$(轻子)| < 2.5
- 双轻子不变质量满足 66 GeV < $m_{ellell}$ < 116 GeV
- 喷注与轻子的 $Delta R$ > 0.5，否则移除该喷注