论文标题
在最终状态下搜索具有较大乘务的最终状态，并使用$ \ sqrt（s）= 13 $ tev proton $ - $ $ proton碰撞在LHC的运行2中记录
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
论文作者
论文摘要
搜索新粒子腐烂成八个或更多喷气机和中等缺失的横向动量的结果。该分析使用$ \ sqrt {s} = 13 $ proton碰撞数据的139 fb $^{ - 1} $在2015年至2018年之间的大型强子碰撞器上收集的$ \ sqrt {s} = 13 $ tev。选择拒绝在包含孤立的电子或muons或Muons的事件之间，并根据$ $ $ -BORD $ -BORD of by-by-kets jets of-the-the-jets jets of-the-the-jets of-the-the-jets的量表。搜索在使用较大的数据集以及使用改进的喷气机和缺少横向动量重建方法的情况下扩展了先前的分析，这些方法将信号与背景过程更干净地分开。没有发现超出标准模型的物理学的证据。结果是在超对称性启发的简化模型的背景下解释的，从而显着扩大了这些模型中Gluino质量的限制。特别地，当最轻的中性诺在模型中几乎无质量时，Gluino质量的极限设置为2 TEV，假设通过最轻的Chargino和第二位最高中性诺中的两步级联腐烂。
Results of a search for new particles decaying into eight or more jets and moderate missing transverse momentum are presented. The analysis uses 139 fb$^{-1}$ of proton$-$proton collision data at $\sqrt{s} = 13$ TeV collected by the ATLAS experiment at the Large Hadron Collider between 2015 and 2018. The selection rejects events containing isolated electrons or muons, and makes requirements according to the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. The search extends previous analyses both in using a larger dataset and by employing improved jet and missing transverse momentum reconstruction methods which more cleanly separate signal from background processes. No evidence for physics beyond the Standard Model is found. The results are interpreted in the context of supersymmetry-inspired simplified models, significantly extending the limits on the gluino mass in those models. In particular, limits on the gluino mass are set at 2 TeV when the lightest neutralino is nearly massless in a model assuming a two-step cascade decay via the lightest chargino and second-lightest neutralino.
