论文标题

在最终状态下搜索超对称性,并具有两个相对的相同味叶子,并且在$ \ sqrt {s} = $ 13 tev的质子 - 普罗顿碰撞中缺少横向动量

Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at $\sqrt{s} =$ 13 TeV

论文作者

CMS Collaboration

论文摘要

在最终状态下,搜索具有两个相对味的同一味叶和缺失的横向动量的最终状态以外的现象。该搜索使用$ \ sqrt {s} = $ 13 tev的质子 - 普罗顿碰撞的数据样本,对应于LHC的CMS实验收集的137 fb $^{ - 1} $的集成光度。探索了标准模型以外的物理学的三个潜在特征:与Lepton对的过量事件,其不变质量与Z玻色子质量一致;轻子对不变质量分布中的运动边缘;以及两个卵子的非共振产生。观察到的事件产量与标准模型背景的预期一致。 The results of the first search allow the exclusion of gluino masses up to 1870 GeV, as well as chargino (neutralino) masses up to 750 (800) GeV, while those of the searches for the other two signatures allow the exclusion of light-flavor (bottom) squark masses up to 1800 (1600) GeV and slepton masses up to 700 GeV, respectively, at 95% confidence level within certain supersymmetry方案。

A search for phenomena beyond the standard model in final states with two oppositely charged same-flavor leptons and missing transverse momentum is presented. The search uses a data sample of proton-proton collisions at $\sqrt{s} =$ 13 TeV, corresponding to an integrated luminosity of 137 fb$^{-1}$, collected by the CMS experiment at the LHC. Three potential signatures of physics beyond the standard model are explored: an excess of events with a lepton pair, whose invariant mass is consistent with the Z boson mass; a kinematic edge in the invariant mass distribution of the lepton pair; and the nonresonant production of two leptons. The observed event yields are consistent with those expected from standard model backgrounds. The results of the first search allow the exclusion of gluino masses up to 1870 GeV, as well as chargino (neutralino) masses up to 750 (800) GeV, while those of the searches for the other two signatures allow the exclusion of light-flavor (bottom) squark masses up to 1800 (1600) GeV and slepton masses up to 700 GeV, respectively, at 95% confidence level within certain supersymmetry scenarios.

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