论文标题
间接暗物质搜索中的状态，挑战和方向
Status, Challenges and Directions in Indirect Dark Matter Searches
论文作者
论文摘要
对暗物质的间接搜索是基于检测光子，中微子或宇宙射线异常通量，这些光子是在沉重的宇宙学物体中，例如星系，太阳或地球，在歼灭或腐烂的暗物质候选物中产生的cosic射线。此外，还可以理解为间接的暗物质的证据可以从早期宇宙探针中获得，例如宇宙微波背景温度的波动，光元素的原始丰度或氢21-CM线的原始丰度。检测这些不同特征所需的技术需要非常不同类型的探测器：空气淋浴阵列，伽马和X射线望远镜，Cherenkov望远镜，中微子望远镜，射频望远镜，射频望远镜或气球或卫星中的粒子探测器。尽管这些探测器中的许多最初并非旨在寻找暗物质，但事实证明它们是直接搜索工作的独特互补工具。在这篇评论中，我们总结了间接搜索暗物质的当前状态，还提到了这些技术遇到的挑战和局限性。
Indirect searches for dark matter are based on detecting an anomalous flux of photons, neutrinos or cosmic-rays produced in annihilations or decays of dark matter candidates gravitationally accumulated in heavy cosmological objects, like galaxies, the Sun or the Earth. Additionally, evidence for dark matter that can also be understood as indirect can be obtained from early universe probes, like fluctuations of the Cosmic Microwave Background temperature, the primordial abundance of light elements or the Hydrogen 21-cm line. The techniques needed to detect these different signatures require very different types of detectors: air shower arrays, gamma- and X-ray telescopes, Cherenkov telescopes, neutrino telescopes, radio telescopes or particle detectors in balloons or satellites. Although many of these detectors were not originally intended to search for dark matter, they have proven to be unique complementary tools to the direct search efforts. In this review we summarize the current status of indirect searches for dark matter, mentioning also the challenges and limitations that these techniques encounter.
