标题： MeV中微子暗物质在SLIM模型中 显示英文标题

标题： MeV neutrino dark matter in the SLIM model

摘要： 我们探索了SLIM模型的一种变体的参数空间，该模型通过引入一个复标量单态和一个复标量双态以及两代右旋中微子扩展了标准模型，其中最轻的中微子质量在MeV到GeV范围内，并作为暗物质候选者。 我们施加了当前对撞机和天体物理约束，以及来自轻子味违反实验的限制。 我们还考虑了利用电子反冲作为可能直接探测信号的XENON实验的发现潜力。 尽管该模型中的暗物质具有轻子亲和性，但由于带电媒介粒子的质量较大，预测的截面仍然过低。 显示英文摘要

摘要： We explore the parameter space of a variant of the SLIM model, which extends the SM with a singlet and a doublet of complex scalars and two generations of right-handed neutrinos, the lightest of which has a mass in the MeV to GeV region and plays the role of Dark Matter candidate. We impose the current collider and astrophysical constrains, as well as bounds from Lepton Flavour Violating experiments. We also consider the discovery potential in the XENON experiment exploiting the electron recoil as a possible direct detection signal. Despite the DM in this model being leptophilic, the predicted cross sections are too low due to the heavy charged mediator.