arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.03692astro-ph.HEastro-ph.COhep-ph
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KM3NeT对衰变暗物质的敏感性

Sensitivities of KM3NeT on decaying dark matter

Kenny C. Y. Ng, Ariane Dekker, Shin'ichiro Ando, Bjarne Bouwer, Maurice Geijsen, Claudia Glazener, June Groothuizen, Jildou Hollander, M. J. F. M. Janssen, Luka… 展开作者

Kenny C. Y. Ng, Ariane Dekker, Shin'ichiro Ando, Bjarne Bouwer, Maurice Geijsen, Claudia Glazener, June Groothuizen, Jildou Hollander, M. J. F. M. Janssen, Lukas Kemme, Wessel Krah, Sancho Luijten Perona, Mnême Stapel, Martijn van Hamersveld

摘要:

IceCube发现的高能天体物理中微子为我们打开了一扇了解宇宙的新窗口。然而,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的结果,如衰变。下一代千兆吨水切伦科夫中微子望远镜,KM 3 NeT,预计将提供显着提高的级联通道的能量分辨率,和有利的观察条件,银河系中心;这两个重要的搜索暗物质衰变信号。我们研究的敏感性KM 3 NeT对暗物质衰变进行模拟似然分析级联和轨道类型的事件,同时考虑到角度和能量信息。我们发现,结合这两个通道,KM 3 NeT预计将产生世界领先的限制暗物质衰变寿命在PeV质量范围内,并可以测试一些暗物质的提示,在目前的冰立方数据。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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