Full next-to-leading-order calculations of Higgs boson decay rates in models with non-minimal scalar sectors
Full next-to-leading-order calculations of Higgs boson decay rates in models with non-minimal scalar sectors
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DOI：
10.1016/j.nuclphysb.2019.114791
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发表时间：
2019-06
影响因子：
2.8
通讯作者：
S. Kanemura;Mariko Kikuchi;K. Mawatari;K. Sakurai;K. Yagyu
中科院分区：
文献类型：
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作者：
S. Kanemura;Mariko Kikuchi;K. Mawatari;K. Sakurai;K. Yagyu
我们给出了在各种扩展的Higgs模型中，质量为125 GeV的Higgs玻色子在完全次领先阶的衰变率的完整集合;即，一个附加真实的单重标量场模型，四种类型的双Higgs偶极模型和惰性偶极模型。计算中考虑了QCD、电弱相互作用和标量相互作用的单圈贡献，并进行了系统的计算。在这些模型中，所有的衰变模式的分支比进行评估，并在每个衰变模式从标准模型预测的偏差模式进行了全面分析。我们展示了如何使用我们的分支比的计算和未来的希格斯玻色子衰变的精确测量，这些模型与扩展希格斯部门可以区分。
We present a complete set of decay rates of the Higgs boson with the mass of 125 GeV at the full next-to-leading order in a variety of extended Higgs models; i.e., a model with an additional real singlet scalar field, four types of two Higgs doublet models and the inert doublet model. All the one-loop contributions due to QCD and electroweak interactions as well as scalar interactions are taken into account, and the calculations are systematically performed. Branching ratios for all the decay modes are evaluated in these models, and patterns of deviations in each decay mode from the standard model predictions are comprehensively analyzed. We show how these models with extended Higgs sectors can be distinguished by using our calculation of the branching ratios and future precision measurements of the Higgs boson decays.