论文标题
TXS 0506+056的深色物质 - 中性和深色物质 - 散射横截面的新约束
New constraints on the dark matter-neutrino and dark matter-photon scattering cross sections from TXS 0506+056
论文作者
论文摘要
当大黄花中产生的高能量中微子和光子在中央黑洞周围的暗物质尖峰和宿主星系的光环中传播时，产生的高能量中微子和光子的通量可能会减弱。使用IceCube观察到TXS 0506+056的一些高能中微子事件以及它们一致的伽马射线事件，我们获得了对暗物质 - 中性和暗物质 - 散射交叉截面的新约束。我们的限制是比考虑通过金属层间培养基和银色的暗物质光环的衰减而得出的数量级要严格的。当横截面随着能量增加时，我们的约束也比CMB和大规模结构的约束更强。
The flux of high energy neutrinos and photons produced in a blazar could get attenuated when they propagate through the dark matter spike around the central black hole and the halo of the host galaxy. Using the observation by IceCube of a few high-energy neutrino events from TXS 0506+056, and their coincident gamma ray events, we obtain new constraints on the dark matter-neutrino and dark matter-photon scattering cross sections. Our constraints are orders of magnitude more stringent than those derived from considering the attenuation through the intergalactic medium and the Milky Way dark matter halo. When the cross-section increases with energy, our constraints are also stronger than those derived from the CMB and large-scale structure.
