论文标题
在具有有希望的$ CP $结构的模型中的低尺度瘦素发生
Low scale leptogenesis in a model with promising $CP$ structure
论文作者
论文摘要
我们考虑了标准模型的简单扩展，可以通过Peccei-Quinn机制和Nelson-Barr机制来解决其$ CP $问题的解决方案。其低能有效模型与Leptonic部门中的Scotogenic模型一致。尽管众所周知，在简单的Seesaw和Scotogenic框架中，瘦素发生在更低的重新加热温度下不能很好地工作，但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场不参考共振效应的领域相一致。作为模型的必不可少成分准备了斧头的替代暗物质候选者。
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.
