世代三希格斯二重态模型中的希格斯玻色子衰变 $h \to bs$
The Higgs boson decay $h \to bs$ in the Generational Three-Higgs-Doublet Model
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中文总结 AI 辅助
本文针对世代三希格斯二重态模型，结合最新实验约束系统分析其预言的希格斯玻色子衰变 $h \to bs$，指出该过程可作为超出标准模型新物理的灵敏探针，并给出参数空间约束与实验检验可行性。
中文摘要 AI 辅助
世代三希格斯二重态模型（G3HDM）通过引入三个希格斯二重态扩展了标准模型（SM），这些二重态分别与不同代的夸克和带电轻子耦合，因此对中性味改变过程有显著贡献。考虑到最新的实验约束，包括125GeV希格斯信号、电弱精密观测量、中性介子混合以及稀有衰变过程 $B\to X_s\gamma$ 和 $B_s^0\to\mu^+\mu^-$，我们对G3HDM中预言的过程 $h \to bs$ 进行了系统分析。该过程在SM中被圈因子强烈压低，因此近期对 $h \to bs$ 的任何观测都为超出SM的新物理提供了灵敏探针。最后，给出了参数空间的约束以及通过观测 $h \to bs$ 检验G3HDM的实验可行性。
英文摘要
The Generational Three-Higgs-Doublet Model (G3HDM) extends the Standard Model (SM) by three Higgs doublets, which couple separately to different generations of quarks and charged leptons, and consequently make significant contributions to the neutral flavor-changing processes. Considering the latest experimental constraints on $125\mathrm{GeV}$ Higgs signals, electroweak precision observables, neutral-meson mixing, and the rare decay processes $B\to X_sγ$ and $B_s^0\toμ^+μ^-$, we perform a systematic analysis of the processes $h \to bs$ predicted in the G3HDM. This process is strongly suppressed by the loop factor in the SM, hence any observation of $h \to bs$ in the near future provides a sensitive probe of physics beyond the SM. Finally, the constraints on the parameter space and the experimental testability of G3HDM through observation $h \to bs$ are presented.
