论文标题
来自中子星长寿命的暗物质介体的界限
Bounds on Long-lived Dark Matter Mediators from Neutron Stars
论文作者
论文摘要
靠近银河中心的中子星有望在暗物质的密集背景下游泳。对于暗物质与中子有高效相互作用的模型，他们有望积累自己的当地暗物质云，使它们具有吸引人的目标，以寻求发现暗物质歼灭的迹象。对于具有非常轻巧的介体的理论，暗物质可能会歼灭成对成对的介体，这些介体足够长，可以逃脱恒星并在其外部腐烂到中微子。我们研究了重物（$ \ sim $ tev to $ \ sim $ pev）的参数空间的界限，这些暗物质理论与长期寿命的介体基于对高能量中微子观测值的观察，并腐烂到中微子，并为未来做出预测。我们发现，这些观察结果提供了与地面搜索互补的信息，并探测了暗物质参数空间的难以访问的制度。
Neutron stars close to the Galactic center are expected to swim in a dense background of dark matter. For models in which the dark matter has efficient interactions with neutrons, they are expected to accumulate their own local cloud of dark matter, making them appealing targets for observations seeking signs of dark matter annihilation. For theories with very light mediators, the dark matter may annihilate into pairs of mediators which are sufficiently long-lived to escape the star and decay outside it into neutrinos. We examine the bounds on the parameter space of heavy ($\sim$TeV to $\sim$PeV) dark matter theories with long-lived mediators decaying into neutrinos based on observations of high energy neutrino observatories, and make projections for the future. We find that these observations provide information that is complementary to terrestrial searches, and probe otherwise inaccessible regimes of dark matter parameter space.
