论文标题

在$ \ sqrt {s} $ = 13 TEV中搜索$ττ$最终状态的其他Higgs玻色子和vector leptoquarks in $ττ$最终状态

Searches for additional Higgs bosons and for vector leptoquarks in $ττ$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV

论文作者

CMS Collaboration

论文摘要

使用与CMS检测器收集的数据样本$ \ sqrt {s} $ = 13 teV,对LHC的Proton-Proton碰撞中的标准模型(SM)进行了三次搜索,以外的物理签名(SM)最终状态。除了h(125)玻色子外,还设置了衰减成$τ$ lepts的分支分数的上限(Cl)的上限(Cl),以及生产新的玻色子$ ϕ $的横截面,用于H(125)Boson,通过Gluon Fusion(GG $ ϕ $)或与B Quarks相关的H(125)Boson,n 60 callange(gg $ ϕ $)。 GEV至0.3 fb的质量为3.5 TEV。数据揭示了GG $ ϕ $生产的两个过剩,其本地$ p $值等于$ M_D $ = 0.1和1.2 TEV的大约三个标准偏差。在搜索$ t $ -CHANNEL交换vector leptoquark U $ _1 $ _1 $ _1 $,95%的CL上限设置为无尺寸的U $ _1 $ leptoquark耦合到Quarks,$τ$ leptons和$τ$ leptons,从质量为1 TEV到6的1 Tev的1 TEV,根据SEASARIO的质量。在解释$ m_ \ mathrm {h}^{125} $和$ m_ \ mathrm {

Three searches are presented for signatures of physics beyond the standard model (SM) in $ττ$ final states in proton-proton collisions at the LHC, using a data sample collected with the CMS detector at $\sqrt{s}$ = 13 TeV, corresponding to an integrated luminosity of 138 fb$^{-1}$. Upper limits at 95% confidence level (CL) are set on the products of the branching fraction for the decay into $τ$ leptons and the cross sections for the production of a new boson $ϕ$, in addition to the H(125) boson, via gluon fusion (gg$ϕ$) or in association with b quarks, ranging from $\mathcal{O}$(10 pb) for a mass of 60 GeV to 0.3 fb for a mass of 3.5 TeV each. The data reveal two excesses for gg$ϕ$ production with local $p$-values equivalent to about three standard deviations at $m_ϕ$ = 0.1 and 1.2 TeV. In a search for $t$-channel exchange of a vector leptoquark U$_1$, 95% CL upper limits are set on the dimensionless U$_1$ leptoquark coupling to quarks and $τ$ leptons ranging from 1 for a mass of 1 TeV to 6 for a mass of 5 TeV, depending on the scenario. In the interpretations of the $M_\mathrm{h}^{125}$ and $M_\mathrm{h, EFT}^{125}$ minimal supersymmetric SM benchmark scenarios, additional Higgs bosons with masses below 350 GeV are excluded at 95% CL.

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