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Physics
High Energy, Nuclear, Particle Physics
New IceCube results November 3 (neutrinos from galaxy NGC 1068)
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[QUOTE="Orodruin, post: 6817486, member: 510075"] This depends. At the typical energies the Earth is pretty transparent to neutrinos but for extremely high energies it is essentially opaque. For example, this is the reason the very high energy events of ANITA were surprising. The atmospheric neutrino flux comes from all directions, not only from above, and the flux is not that different from different directions. What is a problem are the charged particles (ie muons) from showers. This is also the reason a veto exists. You could not use a veto to get rid of atmospheric neutrinos. The point of the veto is to veto down-going showers and thus provide at least some sensitivity to the southern sky as well. You do not need a veto for up-going events as the Earth effectively blocks anything but neutrinos coming from the north. [/QUOTE]
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High Energy, Nuclear, Particle Physics
New IceCube results November 3 (neutrinos from galaxy NGC 1068)
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