Vetoing atmospheric neutrinos in a high energy neutrino telescope
Vetoing atmospheric neutrinos in a high energy neutrino telescope
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DOI：
10.1103/physrevd.79.043009
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发表时间：
2008-12
影响因子：
5
通讯作者：
S. Schonert;T. Gaisser;E. Resconi;O. Schulz
中科院分区：
文献类型：
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作者：
S. Schonert;T. Gaisser;E. Resconi;O. Schulz
我们讨论了在高能中微子望远镜中抑制向下大气中微子的可能性。这可以通过排除由同一母体介子在大气中衰变而产生的介子来实现。原则上，能量${E}_{\ensuremath{\nu}}g10\text{}\text{}\mathrm{TeV}$和天顶角高达60\ifmmode^\circ\else\textdegree\fi{}的大气中微子可以被否决，效率为$g99%$。实际实现将取决于中微子望远镜的深度，介子的否决效率，以及用良好的能量估计识别向下移动的中微子的能力。
We discuss the possibility to suppress downward atmospheric neutrinos in a high energy neutrino telescope. This can be achieved by vetoing the muon which is produced by the same parent meson decaying in the atmosphere. In principle, atmospheric neutrinos with energies ${E}_{\ensuremath{\nu}}g10\text{ }\text{ }\mathrm{TeV}$ and a zenith angle up to 60\ifmmode^\circ\else\textdegree\fi{} can be vetoed with an efficiency of $g99%$. Practical realization will depend on the depth of the neutrino telescope, on the muon veto efficiency, and on the ability to identify downward-moving neutrinos with a good energy estimation.