论文标题
在$ \ sqrt {s} = 13 $ tev pp pp碰撞中,搜索成对成夸克和电子或muons的标量leptoquarks与地图集检测器碰撞
Search for pairs of scalar leptoquarks decaying into quarks and electrons or muons in $\sqrt{s}=13$ TeV pp collisions with the ATLAS detector
论文作者
论文摘要
提出了搜索新的物理共振衰减到轻子中,并提出了Atlas实验执行的喷气机。 $ \ sqrt {s} = 13 $ tev在大型强子对撞机的$ pp $ collisions中产生的标量leptoquarks在大型强子对撞机上使用139 fb $^{ - 1} $的集成亮度考虑,对应于完整的2个数据集。他们在有两个电子或两个MUON和两个或两个喷气机的活动中搜索,包括$ C $ - 或$ b $ QUARKS的碎片所引起的喷气式飞机。每个通道中观察到的产量与标准模型背景期望一致。在电子和MUON通道中排除了低于1.8 TEV和1.7 TEV的质量的Leptoquarks,假设分支比为带电的Lepton和100%的夸克,对夸克风味的依赖性很小。上述分支比率的上限也是Leptoquark质量的函数。
A search for new-physics resonances decaying into a lepton and a jet performed by the ATLAS experiment is presented. Scalar leptoquarks pair-produced in $pp$ collisions at $\sqrt{s}=13$ TeV at the Large Hadron Collider are considered using an integrated luminosity of 139 fb$^{-1}$, corresponding to the full Run 2 dataset. They are searched for in events with two electrons or two muons and two or more jets, including jets identified as arising from the fragmentation of $c$- or $b$-quarks. The observed yield in each channel is consistent with the Standard Model background expectation. Leptoquarks with masses below 1.8 TeV and 1.7 TeV are excluded in the electron and muon channels, respectively, assuming a branching ratio into a charged lepton and a quark of 100%, with minimal dependence on the quark flavour. Upper limits on the aforementioned branching ratio are also given as a function of the leptoquark mass.