论文标题
用Meerkat Galaxy群集遗产调查数据探测2HDMS+S中的暗物质
Probing dark matter in 2HDMS+S with MeerKAT Galaxy Cluster Legacy Survey data
论文作者
论文摘要
据信，暗物质构成了宇宙的大部分内容，但实际上对其性质一无所知。可以通过观察衰减和/或歼灭产物来通过间接检测来探测候选粒子的物理特性。虽然以前主要是通过伽马射线研究来完成的，但新无线电干涉仪的灵敏度提高意味着通过无线电带宽进行搜索是新的领先者。 Meerkat的高灵敏度，范围从8 $ $ jy beam $^{ - 1} $，对于8个弧形光束到10 $μ$ $ jy beam $^{ - 1} $，对于15个Arcsecond Beam，使其成为无线电暗物质无线电暗物质搜索的主要候选者。使用Meerkat Galaxy群集传统调查（MGCLS）数据以获得星系簇中的弥漫性同步器发射，我们能够探测暗物质模型的性能。在这项工作中，我们考虑了通用的WIMP歼灭通道以及2HDM+S模型。后者的开发是为了解释从运行1和2的大型强子对撞机（LHC）数据中观察到的各种异常。使用公共Meerkat数据使我们能够介绍使用此仪器产生的第一个WIMP暗物质约束。
Dark matter is believed to constitute the majority of the matter content of the universe, but virtually nothing is known about its nature. Physical properties of a candidate particle can be probed via indirect detection by observing the decay and/or annihilation products. While this has previously been done primarily through gamma-ray studies, the increased sensitivity of new radio interferometers means that searches via the radio bandwidth are the new frontrunners. MeerKAT's high sensitivity, ranging from 3 $μ$Jy beam$^{-1} $ for an 8 arcsecond beam to 10 $μ$Jy beam$^{-1} $ for an 15 arcsecond beam, make it a prime candidate for radio dark matter searches. Using MeerKAT Galaxy Cluster Legacy Survey (MGCLS) data to obtain diffuse synchrotron emission within galaxy clusters, we are able to probe the properties of a dark matter model. In this work we consider both generic WIMP annihilation channels as well as the 2HDM+S model. The latter was developed to explain various anomalies observed in Large Hadron Collider (LHC) data from runs 1 and 2. The use of public MeerKAT data allows us to present the first WIMP dark matter constraints produced using this instrument.
