论文标题

来自共振光子产生的21厘米观测的边缘和端点

Edges and Endpoints in 21-cm Observations from Resonant Photon Production

论文作者

Caputo, Andrea, Liu, Hongwan, Mishra-Sharma, Siddharth, Pospelov, Maxim, Ruderman, Joshua T., Urbano, Alfredo

论文摘要

我们介绍了一类新型的特征---光谱边缘和端点 - 在标准和黑暗扇区之间的相互作用导致的21厘米测量中。在动力学混合的深色光子的背景下,我们演示了共鸣的深色光子到光子转换如何在观察到的21厘米亮度温度中烙印出独特的光谱特征,这对宇宙黎明和黑暗年龄的电流,即将到来的实验产生了影响。这些签名为使用21厘米观测值以外的标准模型以外的物理方式打开了一种新的新方法。

We introduce a novel class of signatures---spectral edges and endpoints---in 21-cm measurements resulting from interactions between the standard and dark sectors. Within the context of a kinetically mixed dark photon, we demonstrate how resonant dark photon-to-photon conversions can imprint distinctive spectral features in the observed 21-cm brightness temperature, with implications for current, upcoming, and proposed experiments targeting the cosmic dawn and the dark ages. These signatures open up a qualitatively new way to look for physics beyond the Standard Model using 21-cm observations.

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