论文标题
刺激性的解释，对毛法射线射线背景
A Stimulating Explanation of the Extragalactic Radio Background
论文作者
论文摘要
尽管在过去十年中进行了强烈的理论和实验性努力，但在已知的无线电源方面，对以下多个频率的多个频率的观察到了多个频率的观察，并且可能代表了新物理学的迹象。在这封信中，我们确定了具有微弱相互作用粒子的新一类黑暗扇区模型，其中暗光子振荡成有助于无线电背景的普通光子。我们的场景可以解释无线电背景的幅度和光谱指数，同时与其他宇宙学和天体物理的约束保持一致。这些模型预测了宇宙微波背景的新自由度和光谱扭曲的新相对论程度，这可以在下一代实验中检测到。
Despite an intense theoretical and experimental effort over the past decade, observations of the extragalactic radio background at multiple frequencies below 10 GHz are not understood in terms of known radio sources, and may represent a sign of new physics. In this Letter we identify a new class of dark sector models with feebly interacting particles, where dark photons oscillate into ordinary photons that contribute to the radio background. Our scenario can explain both the magnitude and the spectral index of the radio background, while being consistent with other cosmological and astrophysical constraints. These models predict new relativistic degrees of freedom and spectral distortions of the cosmic microwave background, which could be detected in the next generation of experiments.
