Title: Testing Viability of Benchmark Dark Matter Models for the Galactic Center Excess Show Chinese title

Title: 测试银河系中心过剩的基准暗物质模型的可行性

Abstract: We examine the status of benchmark simplified dark matter models that have been proposed to explain the GeV gamma-ray Galactic Center excess. We constrain the available parameter space using updated observations from indirect detection, cosmology, direct detection, and accelerators. We show that there is still unconstrained parameter space in both classes of models we consider (a secluded dark sector with a vector portal coupling, and a two-Higgs doublet with a pseudoscalar mediator), and discuss the prospects for potential improvement of these constraints in future experiments. Show Chinese abstract

Abstract: 我们检查了用于解释GeV伽马射线银河系中心过剩的基准简化暗物质模型的现状。 我们利用间接探测、宇宙学、直接探测和加速器的更新观测结果来限制可用参数空间。 我们表明，在我们考虑的两类模型（具有矢量门户耦合的隐秘暗物质扇区，以及具有赝标介子的双希格斯二重态）中仍然存在未被约束的参数空间，并讨论了未来实验在这些约束方面的潜在改进前景。