论文标题
僻静的暗物质$ b-l $型号
Secluded Dark Matter in Gauged $B-L$ Model
论文作者
论文摘要
我们考虑使用的$ B-L $模型，该模型由一个僻静的黑暗部门扩展，包括两个黑暗扇区颗粒。在此框架中，最轻的$ \ Mathcal {z} _2 $ -ODD粒子是暗物质候选者，与所有其他SM和BSM状态都有微弱的互动。黑暗扇区中的近代最低$ \ MATHCAL {Z} _2 $ -ODD粒子是一个超级wimp，与SM和BSM状态具有较大的相互作用强度。我们分析了有助于暗物质物质丰度的所有相关生产过程，并在两种不同的情况下对它们进行了广泛的分类，a）暗物质主要是通过非热生产过程产生的，b）深色物质主要是从近代最终$ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ {z} _2 _2 _2 $ -ODD粒子中产生的。我们讨论了暗物质对各种模型参数的遗物丰度的依赖性。此外，我们还通过隐形希格斯衰减搜索分析了BSM Higgs的发现前景。
We consider the gauged $B-L$ model which is extended with a secluded dark sector, comprising of two dark sector particles. In this framework the lightest $\mathcal{Z}_2$-odd particle is the dark matter candidate, having a feeble interaction with all other SM and BSM states. The next-to-lightest $\mathcal{Z}_2$-odd particle in the dark sector is a super-wimp, with large interaction strength with the SM and BSM states. We analyse all the relevant production processes that contribute to the dark matter relic abundance, and broadly classify them in two different scenarios, a) dark matter is primarily produced via the non-thermal production process, b) dark matter is produced mostly from the late decay of the next-to-lightest $\mathcal{Z}_2$-odd particle. We discuss the dependency of the relic abundance of the dark matter on various model parameters. Furthermore, we also analyse the discovery prospect of the BSM Higgs via invisible Higgs decay searches.
