Analysis identifies and distinguishes anomalous noise events from muon events in a neutrino telescope.
The ANTARES detector, completed in 2008, is the largest neutrino telescope in the Northern hemisphere. It is located at a depth of 2.5 km in the Mediterranean Sea, 40 km off the Toulon shore. The scientific scope of the experiment is very broad, being the search for astrophysical neutrinos as the main goal. In this note we analyse some events reconstructed with an anomalous high number of hits on PMTs. Likely these noise events are produced by light from electric discharge on PMT bases. We propose a method to distinguish these events from high-energy muon events.
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M. et al. (2012) studied this question.
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