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arXiv 1608.02573hep-phhep-ex
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MSSM希格斯扇区的当前状态和LHC 13 TeV数据

Current status of MSSM Higgs sector with LHC 13 TeV data

Rahool Kumar Barman, Biplob Bhattacherjee, Arghya Choudhury, Debtosh Chowdhury, Jayita Lahiri, Shamayita Ray

摘要:

ATLAS和CMS合作报告了在13 TeV的LHC运行II中分析$\sim 36$ fb $^{-1}$数据的Higgs搜索结果。在这项工作中,我们研究的希格斯部门的唯象最小超对称标准模型,根据最近的希格斯数据,分别研究Run-I和Run-II数据的影响。新数据对参数空间的主要影响之一来自于在$H/A \to τ^{+} τ^{-}$通道中直接搜索中性CP-偶和CP-奇重Higgses(分别为$H$和$A$),该通道比Run-I数据更有效地不利于高$\tanβ$区域。其次,我们证明了$B$介子稀有辐射衰变的最新结果对参数空间的低$\tan β$区和低$M_A$区的约束比以前的测量稍强.此外,我们发现,在一个全球性的适合运行-II轻希格斯信号强度数据几乎可以与相应的运行-I数据的强度相媲美。最后,我们讨论的方案与重希格斯玻色子衰变成electroweakinos和第三代squarks和slepton。

英文摘要:

ATLAS and CMS collaborations have reported the results on the Higgs search analyzing $\sim 36$ fb$^{-1}$ data from Run-II of LHC at 13 TeV. In this work, we study the Higgs sector of the phenomenological Minimal Supersymmetric Standard Model, in light of the recent Higgs data, by studying separately the impact of Run-I and Run-II data. One of the major impacts of the new data on the parameter space comes from the direct searches of neutral CP-even and CP-odd heavy Higgses ($H$ and $A$, respectively) in the $H/A \to τ^{+} τ^{-}$ channel which disfavours high $\tanβ$ regions more efficiently than Run-I data. Secondly, we show that the latest result of the rare radiative decay of $B$ meson imposes a slightly stronger constraint on low $\tan β$ and low $M_A$ region of the parameter space, as compared to its previous measurement. Further, we find that in a global fit Run-II light Higgs signal strength data is almost comparable in strength with the corresponding Run-I data. Finally, we discuss scenarios with the Heavy Higgs boson decaying into electroweakinos and third generation squarks and sleptons.

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