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arXiv 1503.04663hep-phastro-ph.HE
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在IceCube中观测到的PeV中微子的暗物质场景测试

Testing the Dark Matter Scenario for PeV Neutrinos Observed in IceCube

Kohta Murase, Ranjan Laha, Shin'ichiro Ando, Markus Ahlers

摘要:

超重暗物质的晚期衰变被认为是在冰立方观测到的弥散PeV中微子的可能解释之一。我们认为多信使约束的影响,并表明,所提出的模型是勉强符合漫射伽马射线背景数据。通过详细分析和识别费米观测到的亚TeV各向同性扩散伽马射线数据以及HAWC或Tibet AS+MD等天文台未来对亚PeV伽马射线的观测,可以进行关键测试。此外,通过下一代望远镜(如IceCube-Gen 2)的几年观测,μ子中微子对附近暗物质晕(如室女星系团)的搜索应该使我们能够排除或支持暗物质模型,而不依赖于伽马射线和各向异性测试。

英文摘要:

Late time decay of very heavy dark matter is considered as one of the possible explanations for diffuse PeV neutrinos observed in IceCube. We consider implications of multimessenger constraints, and show that proposed models are marginally consistent with the diffuse gamma-ray background data. Critical tests are possible by a detailed analysis and identification of the sub-TeV isotropic diffuse gamma-ray data observed by Fermi and future observations of sub-PeV gamma rays by observatories like HAWC or Tibet AS+MD. In addition, with several-year observations by next-generation telescopes such as IceCube-Gen2, muon neutrino searches for nearby dark matter halos such as the Virgo cluster should allow us to rule out or support the dark matter models, independently of gamma-ray and anisotropy tests.

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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