论文标题
在N2HDM的深色单线阶段，对暗物质直接检测到暗物质的校正
Electroweak Corrections to Dark Matter Direct Detection in the Dark Singlet Phase of the N2HDM
论文作者
论文摘要
直接检测实验是获得粒子形式存在暗物质（DM）无可争议的证据的唯一方法。这些实验已用于探测提供DM候选物的标准模型（SM）的许多扩展。类似Xenon1t的最新结果类似的实验结果导致许多拟议模型的参数空间中的严重限制。在SM的简单扩展中，将复杂的单元添加到SM含量中，需要考虑一环校正，因为树级横截面与DM速度成正比，因此可以忽略不计。在这项工作中，我们研究了具有单重点的DM粒子的情况，但是在较大的延伸框架中，由额外的Doublet以及提供DM候选者的额外单曲线。我们表明，在当前和未来直接检测实验的关注区域中，Electroweak校正非常稳定，$ k $ factor非常接近一个。
Direct detection experiments are the only way to obtain indisputable evidence of the existence of dark matter (DM) in the form of a particle. These experiments have been used to probe many extensions of the Standard Model (SM) that provide DM candidates. Experimental results like the latest ones from XENON1T lead to severe constraints in the parameter space of many of the proposed models. In a simple extension of the SM, the addition of a complex singlet to the SM content, one-loop corrections need to be taken into account because the tree-level cross section is proportional to the DM velocity, and therefore negligible. In this work we study the case of a DM particle with origin in a singlet but in a larger framework of an extension by an extra doublet together with the extra singlet providing the DM candidate. We show that in the region of interest of the present and future direct detection experiments, electroweak corrections are quite stable with a $K$-factor very close to one.
