We show that, in a two Higgs doublet model type II extended by vectorlike leptons, the contributions from heavy neutral and charged Higgs bosons to the anomalous magnetic moment of the muon simultaneously feature chiral enhancement from masses of new leptons and ${\tan }^2\beta$ enhancement from couplings of Higgs bosons. Assuming moderate values of new Yukawa couplings, not exceeding one, that can remain perturbative to very high energy scales, the measured value of muon $g-2$ can be explained within one standard deviation even with 6.5 TeV leptons or 20 TeV Higgs bosons. Allowing new couplings near the perturbativity limit, these mass ranges extend to 45 TeV for leptons and 185 TeV for Higgs bosons. In spite of the high scale of new physics, this scenario can be completely probed at planned future colliders.

中文翻译：

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重希格斯玻色子和新轻子对Muong-2的高度增强贡献以及未来碰撞的前景

我们显示，在两个由矢量样轻子扩展的希格斯二重态模型II中，重中性和带电希格斯玻色子对介子异常磁矩的贡献同时具有新轻子和重子的手性增强作用。 ${\mathrm{棕褐色}}^{\mathrm{2个}}\beta$希格斯玻色子耦合的增强。假设新的Yukawa联轴器的适中值（不超过1个）可以对非常高的能级保持微扰，μ介子的测量值$G-\mathrm{2个}$甚至可以用6.5 TeV轻子或20 TeV希格斯玻色子解释一个标准偏差。由于允许新的耦合接近扰动极限，这些质量范围对于轻子扩展到45 TeV，对于希格斯玻色子扩展到185 TeV。尽管新物理学的规模很大，但可以在计划的未来对撞机上完全探究这种情况。