论文标题
自我恢复暗物质的模型
Models for Self-resonant Dark Matter
论文作者
论文摘要
我们考虑了一种新的机制，可以通过多个组件增强暗物质的自散射和an灭横截面，但没有光中介器。较轻的暗物质组件在弹性共同散落的暗物质中扮演着$ u $ channel杆的角色，从而导致大型的自分裂横截面和Sommerfeld的增强，以增强半注重过程。采用有效的理论方法进行自我谐振的暗物质，我们介绍了多种暗物质组件与旋转和平等的各种组合，在共同散发过程中显示了一个$ U $ channel Pole。我们采用深色光子和深色希格斯门户以进行自我谐振的暗物质，并在半耗电通道上施加了遗物密度条件以及间接检测界限，并具有Sommerfeld增强的，并讨论了直接检测实验的潜在信号。
We consider a new mechanism for enhancing the self-scattering and annihilation cross sections for dark matter with multiple components but without a light mediator. The lighter dark matter component plays a role of the $u$-channel pole in the elastic co-scattering for dark matter, leading to a large self-scattering cross section and a Sommerfeld enhancement for semi-annihilation processes. Taking the effective theory approach for self-resonant dark matter, we present various combinations of multiple dark matter components with spins and parities, showing a $u$-channel pole in the co-scattering processes. Adopting dark photon and dark Higgs portals for self-resonant dark matter, we impose the relic density condition as well as indirect detection bounds on semi-annihilation channels with a Sommerfeld enhancement and discuss potential signals for direct detection experiments.
