论文标题
在$ \ sqrt {s} = $ 13 TEV中搜索通过与Lepton的接触互动衰减的激动的Lepton，并在Proton-Proton碰撞中衰减两次喷气式
Search for an excited lepton that decays via a contact interaction to a lepton and two jets in proton-proton collisions at $\sqrt{s} =$ 13 TeV
论文作者
论文摘要
结果是通过搜索包含同样风味的普通清单产生的激发Lepton（电子或MUON）的事件来提出的，并腐烂了Lepton和两个Hadronon Sjets。假定激发瘦素的生产和衰减都是通过与特征能量尺度$λ$的接触相互作用发生的。研究中衰减模式的分支部分随激发的Lepton的质量而增加，并且是非常激发瘦素的最敏感的通道。该分析使用CMS实验在LHC上收集的质子 - 蛋白质碰撞样品，$ \ sqrt {s} = $ 13 TEV，对应于77.4 fb $^{ - 1} $的集成发光度。两个Lepton加两个喷气系统的四体不变质量用作主要区分变量。没有观察到超出标准模型过程的期望，没有明显过多的事件。假设$λ$等于激发的瘦素的质量，激发的电子和量分别低于5.6和5.7 TEV的MUON被排除在95％的置信度下。这些是迄今为止的最佳限制。
Results are presented from a search for events containing an excited lepton (electron or muon) produced in association with an ordinary lepton of the same flavor and decaying to a lepton and two hadronic jets. Both the production and the decay of the excited leptons are assumed to occur via a contact interaction with a characteristic energy scale $Λ$. The branching fraction for the decay mode under study increases with the mass of the excited lepton and is the most sensitive channel for very heavy excited leptons. The analysis uses a sample of proton-proton collisions collected by the CMS experiment at the LHC at $\sqrt{s} =$ 13 TeV, corresponding to an integrated luminosity of 77.4 fb$^{-1}$. The four-body invariant mass of the two lepton plus two jet system is used as the primary discriminating variable. No significant excess of events beyond the expectation for standard model processes is observed. Assuming that $Λ$ is equal to the mass of the excited leptons, excited electrons and muons with masses below 5.6 and 5.7 TeV, respectively, are excluded at 95% confidence level. These are the best limits to date.
