论文标题
在$ \ sqrt {s} $ = 13 tev中,使用角相关性和重型对象搜索具有单个电子或MUON的最终状态中的超对称性
Search for supersymmetry in final states with a single electron or muon using angular correlations and heavy-object identification in proton-proton collisions at $\sqrt{s}$ = 13 TeV
论文作者
论文摘要
搜索超对称性是在带有单个充电的Lepton,Electron或Muon和多种HADRONES喷头的事件中提出的。该数据对应于质子 - 质子碰撞138 fb $^{ - 1} $的集成光度,在Cern LHC的CMS实验记录的质量中心能量13 TEV。搜索是Gluino对生产的目标,在该产品中,Gluinos以最轻的超对称粒子(LSP)和顶级夸克 - 易药($ \ Mathrm {t \ bar {t}} $)对腐烂到最终状态,或者是轻flavor Quark-antiquark($ \ Mathrm)主要背景是$ \ mathrm {t \ bar {t}} $ PAIP和W+JETS的生产,受到了Lepton Momenta及其重建的Parent W Boson候选者的方位角的要求,以及基于机器学习技术的Top Quark和W Boson识别。观察到的事件的数量与标准模型过程的期望一致。在两个简化的Gluino对产生模型的背景下,对超对称粒子质量进行了限制。 Gluino群众的排除最高可达到2120(2050)GEV的置信度为95%的GLUINO DECAY置于$ \ Mathrm {t \ bar {t}} $ Pair(a $ \ mathrm {q \ bar {q}}}} $ pap and a w boson和a w boson和lsp)和lsp。对于相同的模型,LSP质量的限制可达到1250(1070)GEV。
A search for supersymmetry is presented in events with a single charged lepton, electron or muon, and multiple hadronic jets. The data correspond to an integrated luminosity of 138 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of 13 TeV, recorded by the CMS experiment at the CERN LHC. The search targets gluino pair production, where the gluinos decay into final states with the lightest supersymmetric particle (LSP) and either a top quark-antiquark ($\mathrm{t\bar{t}}$) pair, or a light-flavor quark-antiquark ($\mathrm{q\bar{q}}$) pair and a virtual or on-shell W boson. The main backgrounds, $\mathrm{t\bar{t}}$ pair and W+jets production, are suppressed by requirements on the azimuthal angle between the momenta of the lepton and of its reconstructed parent W boson candidate, and by top quark and W boson identification based on a machine-learning technique. The number of observed events is consistent with the expectations from standard model processes. Limits are evaluated on supersymmetric particle masses in the context of two simplified models of gluino pair production. Exclusions for gluino masses reach up to 2120 (2050) GeV at 95% confidence level for a model with gluino decay to a $\mathrm{t\bar{t}}$ pair (a $\mathrm{q\bar{q}}$ pair and a W boson) and the LSP. For the same models, limits on the mass of the LSP reach up to 1250 (1070) GeV.