我们讨论了搜索自然超对称事件中至少有一个底夸克喷流使用剃刀变量在质子-质子碰撞在8 TeV的CMS检测器。研究由剃刀变量$R^2$和$M_R$定义的平面中的事件分布，在平滑下降的标准模型背景之上搜索峰值信号。数据与通过模板函数建模的预期背景一致。95% C. L。给出了一个标准简化模型中胶子和最轻超对称粒子质量的排斥极限。对于一个最轻的超对称粒子质量为100 GeV，对生产的胶子在一个多底的最终状态被排除的胶子质量高达1375 GeV。
英文摘要：
We discuss a search for natural Supersymmetry in events with at least one bottom-quark jet using razor variables in proton-proton collisions at 8 TeV with the CMS detector. The event distribution in the plane defined by the razor variables $R^2$ and $M_R$ is studied, searching for a peaking signal on top of a smoothly falling standard model background. The data are consistent with the expected background, modeled by a template function. The 95% C.L. exclusion limit on the masses of the gluino and lightest supersymmetric particle in a benchmark simplified model is presented. For a lightest supersymmetric particle mass of 100 GeV, the pair production of gluinos in a multi-bottom final state is excluded for gluino masses up to 1375 GeV.
Inclusive search for supersymmetry in pp collisions at $\sqrt{s} =$ 13 TeV using razor variables and boosted object identification in zero and one lepton final states
Search for supersymmetry in events with $b$-tagged jets and missing transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
寻找标准模型底夸克和顶夸克的超对称伙伴。搜索使用36.1 fb $^{-1}$的$pp$碰撞数据在$\sqrt{s}=13$ TeV收集的ATLAS实验在大型强子对撞机。直接生产对底部和顶部的squarks（$\tilde{b}_{1}$和$\tilde{t}_{1}$）搜索在最终状态与$b$标记的喷流和失踪的横向动量。不同的选择定义为在最终状态中没有带电轻子（电子或μ子），或者只有一个带电轻子。零轻子选择的目标模型中，$\tilde{b}_{1}$是最轻的夸克，并通过$\tilde{b}_{1} \rightarrow b \tildeχ^{0}_{1}$衰变，其中$\tildeχ^{0}_{1}$是最轻的中性伴子。单轻子末态的目标模型是产生底或顶方子，并可以衰变成多个通道，$\tilde{b}_{1} \rightarrow b \tildeχ^{0}_{1}$和$\tilde{b}_{1} \rightarrow t \tildeχ^{\pm}_{1}$，或$\tilde{t}_{1} \rightarrow t \tildeχ^{0}_{1}$和$\tilde{t}_{1} \rightarrow b \tildeχ^{\pm}_{1}$，其中$\tildeχ^{\pm}_{1}$是最轻的电荷子，质量差$m_{\tildeχ^{\pm}_{1}}- m_{\tildeχ^{…
Search for supersymmetry in final states with missing transverse momentum and charm-tagged jets using 139 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector
Search for R-parity violating supersymmetry in a final state containing leptons and many jets with the ATLAS experiment using $\sqrt{s} = 13$ TeV proton-proton collision data
Search for supersymmetry in the multijet and missing transverse momentum final state: an analysis performed on 2.3 fb$^{-1}$ of 13 TeV pp collision data collected with the CMS detector
Search for supersymmetry in pp collisions at $\sqrt{s} =$ 13 TeV with 137 fb$^{-1}$ in final states with a single lepton using the sum of masses of large-radius jets
Search for supersymmetry in events with one lepton and multiple jets exploiting the angular correlation between the lepton and the missing transverse momentum in proton-proton collisions at $\sqrt{s} = $ 13 TeV
Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using $\sqrt{s}$ = 13 Tev proton-proton collision data
Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions
Search for new phenomena in final states with large jet multiplicities and missing transverse momentum at sqrt(s)=8 TeV proton-proton collisions using the ATLAS experiment
Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using $\sqrt(s) = 13$ TeV proton$-$proton collisions recorded by ATLAS in Run 2 of the LHC
Search for direct top squark pair production in events with a Z boson, b-jets and missing transverse momentum in sqrt(s)=8 TeV pp collisions with the ATLAS detector
Search for physics beyond the standard model in events with high-momentum Higgs bosons and missing transverse momentum in proton-proton collisions at 13 TeV
Search for pair-produced third-generation squarks decaying via charm quarks or in compressed supersymmetric scenarios in $pp$ collisions at $\sqrt{s}=8~$TeV with the ATLAS detector
本文报道了通过直接产生第三代方子来寻找超对称性的结果，使用了2012年在LHC的ATLAS实验中记录的$\sqrt{s} = 8$ TeV质子-质子碰撞数据的$20.3$ fb $^{-1}$。基于单喷流和$c$标记事件选择的两种不同的分析策略进行优化的灵敏度直接顶部夸克对产生的衰变通道的粲夸克和最轻的中性伴（$\tilde{t}_1 \to c + \tildeχ_{1}^{0}$）在顶部夸克-中性伴质量参数空间。没有观察到超过标准模型背景预期的情况。结果被解释的上下文中的直接对生产的顶部squarks和（$m_{\tilde{t}_1}$，$m_{\tildeχ_{1}^{0}}$）参数空间中的排除限制。在95 $\%$置信水平下，任意中性伴子质量的运动学边界内，排除了质量高达约240 GeV的顶夸克。对于200 GeV的中性伴子质量，排除了高达270 GeV的顶级夸克质量。在顶夸克和最轻的中性伴子的质量几乎简并的情况下，顶夸克质量高达260 GeV被排除在外。从单喷流分析的结果也解释在压缩的情况下，顶部夸克对生产的衰变通道$\tilde{t}_1 \to b + ff^{'} + \tildeχ^{0}_{1}$和sbottom对生产与$\tilde{b}_1 \to b + \tildeχ^{0}_{1}$，导致类似的排斥近质量简并的第三代squarks和最轻的中性伴子。本…
Search for heavy Higgs bosons with flavour-violating couplings in multi-lepton plus $b$-jets final states in $pp$ collisions at 13 TeV with the ATLAS detector
该研究利用 ATLAS 的 13 TeV Run 2 多轻子加 $b$ 喷注数据，通过深度神经网络分类寻找味破坏重标量，并在双 Higgs 二重态及破坏 $R$ 宇称超对称模型中给出排除限。
