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Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at $$ sqrt{s} $$ = 13 TeV

机译:在$$ SQRT {S} $$ = 13 TEV中搜索沉重的伪伪p博士烧结进入125 GEV HIGGS BOSON和A Z BOSON,以及两个TAU和两个轻质Leptons

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摘要

Abstract A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125 GeV Higgs boson h and a Z boson. The h boson is specifically targeted in its decay into a pair of tau leptons, while the Z boson decays into a pair of electrons or muons. A data sample of proton-proton collisions collected by the CMS experiment at the LHC at s $$ sqrt{s} $$ = 13 TeV is used, corresponding to an integrated luminosity of 35.9 fb −1. No excess above the standard model background expectations is observed in data. A model-independent upper limit is set on the product of the gluon fusion production cross section for the A boson and the branching fraction to Zh → ℓℓττ. The observed upper limit at 95% confidence level ranges from 27 to 5 fb for A boson masses from 220 to 400 GeV, respectively. The results are used to constrain the extended Higgs sector parameters for two benchmark scenarios of the minimal supersymmetric standard model.
机译:摘要对伪影片Higgs玻色子进行搜索,A,衰减进入125 Gev Higgs Boson H和A Z玻色子。 H玻色子在其腐烂中专门针对一对Tau Leptons,而Z玻色子衰减成一对电子或μONs。使用S $$ SQRT {S} $$ = 13 TEF的CMS实验收集的质子质子碰撞的数据样本,对应于35.9 FB -1的集成光度。在数据中没有超过标准模型背景的超额期望。为玻色子和分支馏分的胶合融合产量横截面的乘积和分支馏分的乘积和Zh→ℓℓττ的乘积的型号独立于模型的上限。观察到的95%置信水平的上限分别为220至400 GEV的糖酵母的27至5 fb。结果用于限制最小超对对称标准模型的两个基准场景的扩展HIGGS扇区参数。

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