论文标题
在转换驱动的苏典中，暗物质和辐射性中微子质量
Dark matter and radiative neutrino masses in conversion-driven scotogenesis
论文作者
论文摘要
Scotogenic模型会辐射产生主要中微子肿块，而暗物质颗粒在循环中运行。我们探讨了通过转换驱动的冻结机制生成费米文物的遗物密度的参数空间。只要有活性中微子是分层，小型Yukawa耦合启动化学去耦进行转化过程的必要性自然就会再现小中微子肿块。该模型还可以解决最近报道的$ w $ boson质量的偏差，同时满足了直接检测，充电Lepton风味的限制以及对撞机的界限。参数空间的一部分导致在LHC处探测的长寿命粒子特征。
The scotogenic model generates Majorana neutrino masses radiatively, with dark matter particles running in the loop. We explore the parameter space in which the relic density of fermionic dark matter is generated via a conversion-driven freeze-out mechanism. The necessity for small Yukawa couplings to initiate chemical decoupling for conversion processes naturally reproduces small neutrino masses as long as the active neutrinos are hierarchical. The model can also resolve the recently reported deviation in the $W$-boson mass while satisfying constraints from direct detection, charged lepton flavor violation as well as collider bounds. Parts of the parameter space lead to long-lived particle signatures to be probed at the LHC.
