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arXiv 0809.1646astro-ph
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利用AMANDA- II最终数据寻找高能中微子点源

Search for Point Sources of High Energy Neutrinos with Final Data from AMANDA-II

The IceCube Collaboration

摘要:

利用AMANDA-II在2000-2006年期间记录的3.8年的数据,对高能中微子的点源进行了研究。在重建μ子轨道和应用选择标准,旨在最佳地保留中微子引起的事件起源于北天,我们到达一个样本的6595个候选事件,主要是从大气中的中微子与初级能量100 GeV至8 TeV。我们对这个样本的搜索没有发现中微子点源的迹象。我们对来自北天各点的$E^{-2}$中微子通量进行了迄今为止最严格的限制,平均上限为$E^{2}Φ_{ν_μ + ν_τ} \le$ 5.2 $\times$ MO 10 $^{-11}$ TeV cm $^{-2}$ s $^{-1}$ $^{-1}$基于$ν_μ$和$ν_τ$通量之和,假设相等,能量范围从1.9 TeV到2.5 PeV。

英文摘要:

We present a search for point sources of high energy neutrinos using 3.8 years of data recorded by AMANDA-II during 2000-2006. After reconstructing muon tracks and applying selection criteria designed to optimally retain neutrino-induced events originating in the Northern Sky, we arrive at a sample of 6595 candidate events, predominantly from atmospheric neutrinos with primary energy 100 GeV to 8 TeV. Our search of this sample reveals no indications of a neutrino point source. We place the most stringent limits to date on $E^{-2}$ neutrino fluxes from points in the Northern Sky, with an average upper limit of $E^{2}Φ_{ν_μ + ν_τ} \le$ 5.2 $\times$ 10$^{-11}$ TeV cm$^{-2}$ s$^{-1}$ on the sum of $ν_μ$ and $ν_τ$ fluxes, assumed equal, over the energy range from 1.9 TeV to 2.5 PeV.

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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