论文标题
在$ \ sqrt {s} = 13 $ tev的$ pp $ collisions中的Leptonic最终状态中搜索Leptonic的最终状态中的类型 - III seesaw heeve lepton
Search for type-III seesaw heavy leptons in leptonic final states in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
论文作者
论文摘要
提出了对III型SEESAW机制预测的重卵子生产的搜索。该搜索使用质子 - 普罗顿碰撞数据以13个TEV为中心的质量碰撞数据，对应于Atlas检测器在大型强子对撞机运行2期间记录的集成光度的139 fb $^{ - 1} $。该分析侧重于最终状态，该状态具有三个或四个电子或MUON，从中间电动电动玻色子中可能会衰减新的重叶子。没有观察到高于标准模型预期的显着偏差。重量轻松产生的横截面和质量的上限和下限分别是得出的。然后将这些结果首次与Atlas使用该通道与最终状态的两个Lepton一起发布的结果结合在一起。在95％的置信度下，观察到的III型seeSAW重型叶子的质量的下限为910 GEV。
A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to 139 fb$^{-1}$ of integrated luminosity recorded by the ATLAS detector during Run 2 of the Large Hadron Collider. The analysis focuses on final states with three or four electrons or muons from the possible decays of new heavy leptons via intermediate electroweak bosons. No significant deviations above the Standard Model expectation are observed; upper and lower limits on the heavy lepton production cross-section and masses are derived respectively. These results are then combined for the first time with the ones already published by ATLAS using the channel with two leptons in the final state. The observed lower limit on the mass of the type-III seesaw heavy leptons combining two, three and four lepton channels together is 910 GeV at the 95% confidence level.
