论文标题
腐烂的fimd暗物质的模型：与中微子部门的潜在联系
Models of decaying FIMP Dark Matter: potential links with the Neutrino Sector
论文作者
论文摘要
暗物质（DM）粒子的绝对稳定性不是结合要求。在这里，我们建议一些情况下，DM粒子可以通过极度微弱的相互作用腐烂。这可以通过最简单的猜想中莫名其妙的小Yukawa耦合而发生。设置了这样的模型后，我们超越了它，从而踩到场景中，其中一些测量的$ u（1）$对称性的自发分解可能会导致中间尺度，并适当抑制有效的操作员，从而使DM粒子缓慢衰减。在每种情况下，都考虑到粒子物理和宇宙学的约束。详细研究的最后一个和更多涉及的方案暗示了一侧控制中微子物理的模型参数与另一侧中微子物理的模型参数之间的联系，而另一侧的模型参数在另一侧的动力学。
The absolute stability of a dark matter (DM) particle is not a binding requirement. Here we suggest a few scenarios where the DM particle is liable to decay via extremely feeble interactions. This can happen via inexplicably small Yukawa couplings in the simplest conjectures. After setting down such a model, we go beyond it, thus treading onto scenarios where the spontaneous breakdown of some gauged $U(1)$ symmetry may lead to intermediate scales, and suitably suppressed effective operators which allow the DM particle to decay slowly. The constraints from particle physics as well as cosmology are taken into account in each case. The last and more involved scenario, studied in detail, suggest a link between the model parameters that govern neutrino physics on one side, and the dynamics of a quasi-stable DM particle on the other.
