论文标题
在$ \ sqrt {s} $ \ sqrt {s} $ = 13 tev with atlas detter
Search for type-III seesaw heavy leptons in dilepton 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} $。该分析的重点是最终状态，具有不同风味和电荷组合的两个轻叶（电子或im），并具有至少两种喷气机和较大的缺失横向动量。没有观察到与标准模型期望的显着过多。结果被转化为重勒普顿质量的排除限，并且在95％的置信度下，观察到的III型seesaw seesaw重物质量的下限为790 GEV。
A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to 139 fb$^{-1}$ of integrated luminosity recorded by the ATLAS detector during Run 2 of the Large Hadron Collider. The analysis focuses on the final state with two light leptons (electrons or muons) of different flavour and charge combinations, with at least two jets and large missing transverse momentum. No significant excess over the Standard Model expectation is observed. The results are translated into exclusion limits on heavy-lepton masses, and the observed lower limit on the mass of the type-III seesaw heavy leptons is 790 GeV at 95% confidence level.
