论文标题
禁止将暗物质an灭到标准模型颗粒中
Forbidden Dark Matter Annihilations into Standard Model Particles
论文作者
论文摘要
我们将运动学上禁止的暗物质an灭向标准模型瘦素。这种机制精确地选择了具有观察到的遗物丰度的暗物质质量。这与现有的热暗物质模型在质量上有所不同，在这些模型中，固定遗物密度通常会留下可行的暗物质质量的开放数量级。禁止的歼灭要求暗物质与统治其an灭率的颗粒相近。我们展示了暗物质质量接近元素质量，tau质量或tau和muon质量的平均值的例子。我们发现，大多数相关参数空间可以通过下一代提出的梁羽式实验和未来的高光度电子偏置壳可以覆盖。禁忌暗物质预测标准模型的大耦合可以解释观察到的$（g-2）_ $ $的值。
We present kinematically forbidden dark matter annihilations into Standard Model leptons. This mechanism precisely selects the dark matter mass that gives the observed relic abundance. This is qualitatively different from existing models of thermal dark matter, where fixing the relic density typically leaves open orders of magnitude of viable dark matter masses. Forbidden annihilations require the dark matter to be close in mass to the particles that dominate its annihilation rate. We show examples where the dark matter mass is close to the muon mass, the tau mass, or the average of the tau and muon masses. We find that most of the relevant parameter space can be covered by the next generation of proposed beam-dump experiments and future high-luminosity electron positron colliders. Forbidden dark matter predicts large couplings to the Standard Model that can explain the observed value of $(g-2)_μ$.
