论文标题
多基格斯双重型模型中的自然对齐
Natural Alignment in Multi-Higgs Doublet Models
论文作者
论文摘要
我们介绍了一套完整的连续最大对称性集，即$ n $ -higgs Doublet型号（$ n $ hdm）的潜力应满足自然标准模型（SM）对齐方式。结果，这种比对不需要大的质量尺度或微调，即使这些对称性被双线性质量术语轻轻地破裂，也仍然存在。特别是，最大的对称$ n $ hdm（ms- $ n $ hdm）可以提供天然的SM对准和四分之一的耦合统一，直至Planck量表。最值得注意的是，我们表明，MS-2HDM是SM的非常可预测的扩展，该SM由两个仅附加参数控制：（i）被带电的Higgs Mass $ m_ {使用这两个输入参数，可以确定模型的整个希格斯质量谱。此外，我们获得了对仪表玻色子和夸克的Sm样希格斯玻色子耦合的不对准的明确预测，这可能是可以在将来的Precision高能碰撞器上测试的。
We present the complete set of continuous maximal symmetries that the potential of an $n$-Higgs Doublet Model ($n$HDM) should satisfy for natural Standard Model (SM) alignment. As a result, no large mass scales or fine-tuning is required for such alignment, which still persists even if these symmetries were broken softly by bilinear mass terms. In particular, the Maximal Symmetric $n$HDM (MS-$n$HDM) can provide both natural SM alignment and quartic coupling unification up to the Planck scale. Most remarkably, we show that the MS-2HDM is a very predictive extension of the SM governed by two only additional parameters: (i) the charged Higgs mass $M_{h^{\pm}}$ (or $m^2_{12}$) and (ii) $\tanβ$, whilst the quartic coupling unification scale $μ_X$ is predicted to assume two discrete values. With these two input parameters, the entire Higgs-mass spectrum of the model can be determined. Moreover, we obtain definite predictions of misalignment for the SM-like Higgs-boson couplings to the gauge bosons and to the quarks, which might be testable at future precision high-energy colliders.
