标题： 使用Hyper-Kamiokande从亚GeV暗物质中分离超新星中微子背景 显示英文标题

标题： Disentangling Sub-GeV Dark Matter from the Diffuse Supernova Neutrino Background using Hyper-Kamiokande

摘要： 即将到来的超级神冈探测器（Hyper-K）实验有望探测到来自弥漫超新星中微子背景（DSNB）。这需要仔细考虑所有可能的背景来源。湮灭成果为中微子的亚GeV暗物质（DM）是一种尚未被考虑的潜在背景。我们模拟了HyperK探测器中的DSNB和DM信号以及背景。我们发现，由DM诱导的中微子确实可能会改变从DSNB物理中提取感兴趣的参数值。由于DSNB是一种各向同性的信号，而DM主要来自银河系中心，我们展示了可以通过开-关分析来减轻这种影响。 显示英文摘要

摘要： The upcoming Hyper-Kamiokande (HyperK) experiment is expected to detect the Diffuse Supernova Neutrino Background (DSNB). This requires to ponder all possible sources of background. Sub-GeV dark matter (DM) which annihilates into neutrinos is a potential background that has not been considered so far. We simulate DSNB and DM signals, as well as backgrounds in the HyperK detector. We find that DM-induced neutrinos could indeed alter the extraction of the correct values of the parameters of interest for DSNB physics. Since the DSNB is an isotropic signal, and DM originates primarily from the Galactic centre, we show that this effect could be alleviated with an on-off analysis.