标题： 低尺度镜像标准模型暗物质及其通过引力波和吉他星云的探测 显示英文标题

标题： Low-scale Mirror Standard Model Dark Matter and its Detection via Gravitational Waves and the Guitar Nebula

摘要： 如果暗物质部门确实黑暗、自相互作用且无法通过地面实验触及，那该怎么办？ 如果它在任何地面实验中都不可通过实验触及，我们如何找到这种暗部门的线索？ 我们研究了一个低尺度镜像标准模型，它可以作为暗物质的模型，与标准模型粒子仅通过引力相互作用。 镜像标准模型部门的粒子是稳定的粒子，可以构成宇宙暗物质可测量的一部分。 这些镜像标准模型粒子通过低温暗物质一阶相变获得质量。 我们详细检查了这个暗相变，并表明如何通过这个相变生成随机引力波。 对于我们的模型，产生的引力波能量谱可以被平方公里阵列探测到。 此外，我们提出了一种可能的方法，使用来自吉他星云的观测数据来检测暗物质的粒子性质的影响，这种方法适用于暗物质是碰撞性的，即相互作用的暗物质。 在不具体指定相互作用暗物质的模型的情况下，从而对相互作用的暗物质采取一种无偏的态度，我们假设吉他星云弓激波是由高速中子星与穿过星际介质的相互作用产生的，假设该星际介质由相互作用的暗物质和氢组成。 我们的主要建议是，弓激波的张开角度可以直接与暗物质粒子的声速相关联，而较大的弓激波角度可能是星际介质由碰撞性暗物质和氢气组成的有力指示。 这是受Bosma效应的启发。 显示英文摘要

摘要： What if the dark matter Sector is truly dark, self-interacting and unreachable by terrestrial experiments? How could we find hints of such dark sector if it is experimentally unreachable by any terrestrial experiment? We study a low-scale mirror Standard Model which can act as a model for dark matter, which interacts only gravitationally with the Standard Model particles. The mirror Standard Model sector particles are stable particles can comprise a measurable part of the dark matter of the Universe. These mirror Standard Model particles acquire mass through a low-temperature dark first order phase transition. We examine in detail this dark phase transition and we indicate how stochastic gravitational waves can be generated through this transition. For the model we use, the produced energy spectrum of the gravitational waves can be detected by the Square Kilometer Array. Moreover, we propose a possible way to detect effects of the particle nature of dark matter, using observational data coming from the guitar nebula, which can work if dark matter is collisional, so interacting dark matter. Without specifying a model for interacting dark matter, thus choosing an agnostic approach for interacting dark matter, we assume that the guitar nebula bow shock is generated by the interaction of the high speed neutron star that passes through the interstellar medium, which is assumed to be comprised by interacting dark matter and hydrogen. Our main proposal is that the opening angle of the bow shock can be directly related to the speed of sound of the dark matter particles, and a large angle of the bow shock could be a strong indicator that the interstellar medium is comprised by collisional dark matter and hydrogen gas. This is motivated by the Bosma effect.