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Probing the Higgs boson through Yukawa force
Nuclear Physics B ( IF 2.5 ) Pub Date : 2020-11-25 , DOI: 10.1016/j.nuclphysb.2020.115261
Avik Banerjee , Gautam Bhattacharyya

The ATLAS and CMS collaborations of the LHC have observed that the Higgs boson decays into the bottom quark-antiquark pair, and have also established that the Higgs coupling with the top quark-antiquark pair is instrumental in one of the modes for Higgs production. This underlines the discovery of the Yukawa force at the LHC. We demonstrate the impact of this discovery on the Higgs properties that are related to the dynamics of electroweak symmetry breaking. We show that these measurements have considerably squeezed the allowed window for new physics contributing to the Higgs couplings with the weak gauge bosons and the third generation quarks. The expected constraints at the HL-LHC and future Higgs factories are also shown. We project these constraints on the parameter space of a few motivated scenarios beyond the Standard Model. We pick them under two broad categories, namely, the composite Higgs and its RS dual, as well as various types of multi-Higgs models. The latter category includes models with singlet scalars, Type I, II and BGL-type two-Higgs doublet models, and models with scalar triplets à la Georgi and Machacek.



中文翻译:

通过汤川力探测希格斯玻色子

大型强子对撞机的ATLAS和CMS合作发现,希格斯玻色子衰变成了底部夸克-反夸克对,并且还确定了希格斯与顶部夸克-反夸克对的耦合是希格斯生产方式中的一种。这强调了在大型强子对撞机中发现了汤川部队。我们证明了这一发现对与电弱对称破坏动力学有关的希格斯性质的影响。我们表明,这些测量结果极大地压缩了新物理的允许窗口,从而有助于弱规范玻色子和第三代夸克的希格斯耦合。还显示了HL-LHC和未来希格斯工厂的预期限制。我们将这些约束投影在标准模型之外的一些激励方案的参数空间上。我们将它们分为两大类,即复合希格斯及其RS Dual,以及各种类型的多重希格斯模型。后一类包括具有单重态标量的模型,I,II和BGL型两希格斯双重态模型以及具有标量三重态的模型点菜格奥尔基和Machacek。

更新日期:2020-11-26
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