AI 中文总结
本研究基于复标量单重态 Scotogenic 模型，通过参数扫描结合多类约束，找到费米型暗物质的可行解，其信号受抑制，对撞机中可通过单喷注或长寿命带电标量信号探测。
AI 中文摘要
我们研究复 Scotogenic 单重态模型的现象学，该模型是 Scotogenic 框架的扩展，可同时解释辐射中微子质量和费米型暗物质。我们对参数空间进行马尔可夫链蒙特卡罗扫描，施加理论自洽性以及中微子振荡数据、轻子味违反、对撞机搜寻和观测到的暗物质残余丰度的约束。在希格斯共振附近和共湮灭区域均发现可行的暗物质解，相对于最小 Scotogenic 模型扩展了允许的质量范围。直接和间接探测信号被强烈抑制，使大部分可行参数空间超出当前实验的探测范围。在对撞机中，单喷注搜寻是在压缩谱情景下探测该模型的最佳途径，而长寿命带电标量可能产生 displaced 或探测器稳定的信号。
英文摘要
We study the phenomenology of the complex scoto-singlet model, an extension of the scotogenic framework that simultaneously accounts for radiative neutrino masses and fermionic dark matter. We perform a Markov Chain Monte Carlo scan of the parameter space, imposing theoretical consistency together with constraints from neutrino oscillation data, lepton-flavor violation, collider searches and the observed dark matter relic abundance. Viable dark matter solutions are found both near the Higgs resonance and in coannihilation regions, extending the allowed mass range with respect to the minimal scotogenic model. Direct- and indirect-detection signals are strongly suppressed, placing most of the viable parameter space beyond the reach of current experiments. At colliders, monojet searches offer the best prospects to probe our model in compressed-spectrum scenarios, while long-lived charged scalars may give rise to displaced or detector-stable signatures.
Comments19 pages, 7 figures
