论文标题
深色希格斯的早期深色能量和斧头引起的非热捕获
Early dark energy by dark Higgs, and axion-induced non-thermal trapping
论文作者
论文摘要
我们提出了一种新的黑暗能源（EDE）的新场景，其中一个黑暗的希格斯被困在起源上。为了使这种黑暗的希格斯被困直到物质辐射平等，我们使用轴相干振荡而非热产生的暗光子，轴的诱捕效果比热质量强得多。当捕获结束时，黑暗的希格斯迅速腐烂到深色光子，然后将其红变成辐射。黑暗的希格斯（Dark Higgs Ede）场景非常适合普通的墨西哥帽子潜力，因为这是对称性增强的点，因此黑暗的希格斯（Dark Higgs）从一开始就自然坐在起源。因此，与Axion Ede不同，相对于初始条件，无需精心设计或微调。有趣的是，斧子不仅产生深色光子，而且还解释了暗物质。我们发现可以同时解释轴突衰变常数的可行参数区域和轴法质量。我们还讨论了在轴 - 光子耦合存在下轴的可检测性，并表明轴可以是QCD轴。
We propose a new scenario of early dark energy (EDE) with a dark Higgs trapped at the origin. To keep this dark Higgs trapped until around the matter-radiation equality, we use dark photons produced non-thermally by coherent oscillations of axions, which have a much stronger trapping effect than thermal mass. When the trapping ends, the dark Higgs quickly decays into dark photons, which are then red-shifted as radiation. The dark Higgs EDE scenario works well for an ordinary Mexican-hat potential, and the dark Higgs naturally sits at the origin from the beginning, since it is the symmetry-enhanced point. Thus, unlike the axion EDE, there is no need for elaborate potentials or fine-tuning with respect to the initial condition. Interestingly, the axion not only produces dark photons, but also explains dark matter. We find the viable parameter region of the axion decay constant and the axion mass where dark matter and the $H_0$ tension can be simultaneously explained. We also discuss the detectability of the axion in the presence of axion-photon coupling, and show that the axion can be the QCD axion.
