We consider a simple extension of the standard model, which could give a solution to its CP issues through both the Peccei–Quinn mechanism and the Nelson–Barr mechanism. Its low energy effective model coincides with the scotogenic model in the leptonic sector. Although leptogenesis is known not to work well at lower reheating temperature than \(10^9\) GeV in simple seesaw and scotogenic frameworks, such low reheating temperature could be consistent with both neutrino mass generation and thermal leptogenesis via newly introduced fields without referring to the resonance effect. An alternative dark matter candidate to axion is prepared as an indispensable ingredient of the model.

我们考虑标准模型的简单扩展，它可以通过Peccei-Quinn机制和Nelson-Barr机制为其CP问题提供解决方案。它的低能效模型与轻子领域的碳烟生成模型相吻合。尽管 在简单的跷跷板和斯科特框架中，瘦素生成在低于\（10 ^ 9 \） GeV的再加热温度下不能很好地工作，但是这种低的再加热温度可能与中微子质量的产生和通过新引入的领域产生的热瘦素都相符，而无需提及共振效应。准备替代轴突的替代暗物质作为模型的必要组成部分。