We perform a phenomenological analysis of the observable consequences on the extended scalar sector of the SMASH (Standard Model–Axion–Seesaw–Higgs portal inflation) framework. We solve the vacuum metastability problem in a suitable region of SMASH scalar parameter spaces and discuss the one-loop correction to triple Higgs coupling \({{\lambda }_{{HHH}}}{\text{.}}\) We also find that the correct neutrino masses and mass squared differences and baryonic asymmetry of the universe can arise from this model and consider running of the Yukawa couplings of the model. In fact, we perform a full two-loop renormalization group analysis of the SMASH model.

中文翻译：

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BSM中的中微子质量和单重态

我们对SMASH（标准模型-轴力-拉锯-跷跷板-希格斯门式通货膨胀）框架在扩展标量部门上的可观察到的后果进行了现象学分析。我们解决了SMASH标量参数空间合适区域中的真空亚稳态问题，并讨论了三重希格斯耦合\（{{\ lambda __ {{HHH}}} {\ text {。}} \）的单回路校正还发现正确的中微子质量和质量平方差以及宇宙的重子不对称性可能源于该模型，并考虑了该模型的Yukawa耦合的运行。实际上，我们对SMASH模型执行了完整的两循环重归一化组分析。