论文标题
（在）最小的深色阿贝尔仪范围的可见签名
(In)Visible signatures of the minimal dark abelian gauge sector
论文作者
论文摘要
在本文中，我们研究了稀有的介子衰变设施Koto，LHCB和Belle II的当前和将来的敏感性，以使最小的黑暗Abelian仪表对称性的浅色黑暗扇区，那里的深色Higgs $ S $和深色的Photon $ z_d $具有质量$ \ sieldsim 10 $ GEV。我们已经探索了有趣的场景，其中$ s $只能衰减一对$ z_d $，因此有助于可见或隐形签名，具体取决于后者的寿命。我们的计算表明，这些加速器实验可以以互补的方式访问深色希格（质量和标量混合）和深色光子（质量和动力学混合）参数。我们还讨论了SM HIGGS总衰减宽度的CMS测量及其对HIGGS无形分支比率的限制，可用于将实验覆盖范围扩展到最高$ \ sim 10 $ GEV的深色光子质量，并在同一时间对与破碎的黑暗的黑暗亚伯型相关的时间敏感性。
In this paper we study the present and future sensitivities of the rare meson decay facilities KOTO, LHCb and Belle II to a light dark sector of the minimal dark abelian gauge symmetry where a dark Higgs $S$ and a dark photon $Z_D$ have masses $\lesssim 10$ GeV. We have explored the interesting scenario where $S$ can only decay to a pair of $Z_D$'s and so contribute to visible or invisible signatures, depending on the life-time of the latter. Our computations show that these accelerator experiments can access the dark Higgs (mass and scalar mixing) and the dark photon (mass and kinetic mixing) parameters in a complementary way. We have also discussed how the CMS measurement of the SM Higgs total decay width and their limit on the Higgs invisible branching ratio can be used to extend the experimental reach to dark photon masses up to $\sim 10$ GeV, providing at the same time sensitivity to the gauge coupling associated with the broken dark abelian symmetry.
