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arXiv 1707.01434hep-ph
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矢量SIMP暗物质

Vector SIMP dark matter

Soo-Min Choi, Yonit Hochberg, Eric Kuflik, Hyun Min Lee, Yann Mambrini, Hitoshi Murayama, Mathias Pierre

摘要:

强相互作用大质量粒子(SIMPs)最近被认为是光热暗物质遗迹。在这里,我们认为一个明确的实现的SIMP机制的形式产生的$SU(2)_X$隐藏规范理论,意外保管对称性保护的稳定性的暗物质的矢量SIMP。我们提出了几种方法来平衡黑暗和可见部门在这个设置。特别是,我们表明,光暗希格斯门可以保持两个部门之间的热平衡,可以作为一个大规模的黑暗矢量门户与其广义陈-西蒙斯耦合的矢量SIMPs,同时保持一致的实验约束。

英文摘要:

Strongly Interacting Massive Particles (SIMPs) have recently been proposed as light thermal dark matter relics. Here we consider an explicit realization of the SIMP mechanism in the form of vector SIMPs arising from an $SU(2)_X$ hidden gauge theory, where the accidental custodial symmetry protects the stability of the dark matter. We propose several ways of equilibrating the dark and visible sectors in this setup. In particular, we show that a light dark Higgs portal can maintain thermal equilibrium between the two sectors, as can a massive dark vector portal with its generalized Chern-Simons couplings to the vector SIMPs, all while remaining consistent with experimental constraints.

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