论文标题
KM3NET对腐烂的暗物质的敏感性
Sensitivities of KM3NeT on decaying dark matter
论文作者
论文摘要
IceCube发现高能天体中性中微子的发现为宇宙打开了一个新窗口。但是，这些中微子的起源仍然是一个谜，其中一些可能是暗物质相互作用（例如衰减）的结果。下一代Gigaton Water-Cherenkov中微子望远镜KM3NET有望在喀斯喀特通道中提供明显改善的能量分辨率，并在银河系中心提供有利的观看状况；这对于搜索暗物质衰减信号很重要。我们通过考虑角度和能量信息，研究级联和轨道类型事件的模拟可能性分析，研究KM3NET对暗物质衰变的敏感性。我们发现，将两个通道结合起来，KM3NET有望在PEV质量范围内对暗物质衰减寿命产生世界领先的限制，并且可以测试当前ICecube数据中的一些暗物质提示。
The discovery of high-energy astrophysical neutrinos by IceCube has opened a new window to the Universe. However, the origin of these neutrinos is still a mystery, and some of them could be a result of dark matter interactions such as decay. Next generation gigaton water-Cherenkov neutrino telescope, KM3NeT, is expected to offer significantly improved energy resolution in the cascade channel, and advantageous viewing condition to the Galactic Center; both important for searches of dark matter decay signals. We study the sensitivity of KM3NeT on dark matter decays by performing a mock likelihood analysis for both cascade and track type events, taking into account both angular and energy information. We find that, combining both channels, KM3NeT is expected to produce world leading limits on dark matter decay lifetime in the PeV mass range, and could test some of the dark matter hints in the current IceCube data.
