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arXiv 1906.02520hep-ph
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用CMS $\sqrt{s}=13$ TeV结果对双Higgs模型荷电Higgs参数的限制

Limits on the Charged Higgs Parameters in the Two Higgs Doublet Model using CMS $\sqrt{s}=13$ TeV Results

Prasenjit Sanyal

备注：
9 pages, 6 figures
发表信息：
Eur.Phys.J. C79 (2019) no.11, 913
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摘要：

最新的CMS结果的上限$σ_{H^\pm}$ BR（$H^\pm \rightarrow τ^\pmν)$和$σ_{H^\pm}$ BR（$H^+ \rightarrow t\bar{b}$）的$\sqrt{s}=13$ TeV在35.9 fb $^{-1}$的积分光度被用来施加约束的带电Higgs $H^\pm$参数在两个Higgs双重模型（2HDM）。2HDM是标准模型（SM）在相同规范对称性下的最简单扩展，包含带电希格斯粒子，并且与最小超对称标准模型（MSSM）相比，限制相对较少。最新的结果导致更严格的约束带电希格斯参数空间相比，早期的8 TeV的结果。CMS合作还首次研究了奇异玻色子衰变$H^\pm \rightarrow W^\pm A$和$A \rightarrow μ^+ μ^-$，并为轻荷希格斯粒子的BR（$t\rightarrow H^+ b$）设定了上限。这些约束导致$τν$通道未排除的参数空间的排除。为了比较，还讨论了风味物理约束的排除区域。

英文摘要：

Latest CMS results on the upper limits on $σ_{H^\pm}$BR($H^\pm \rightarrow τ^\pmν)$ and $σ_{H^\pm}$BR($H^+ \rightarrow t\bar{b}$) for $\sqrt{s}=13$ TeV at an integrated luminosity of 35.9 fb$^{-1}$ are used to impose constraints on the charged Higgs $H^\pm$ parameters within the Two Higgs Doublet Model (2HDM). The 2HDM is the simplest extension of Standard Model (SM) under the same gauge symmetry to contain charged Higgs and is relatively less constrained compared to Minimal Supersymmetric Standard Model (MSSM). The latest results lead to much more stringent constraints on charged Higgs parameter space in comparison to the earlier 8 TeV results. The CMS collaboration also studied the exotic bosonic decay $H^\pm \rightarrow W^\pm A$ and $A \rightarrow μ^+ μ^-$ for the first time and put upper limits on the BR($t\rightarrow H^+ b$) for light charged Higgs. These constraints lead to exclusion of parameter space which are not excluded by the $τν$ channel. For comparison the exclusion regions from flavour physics constraints are also discussed.

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