Abstract
The flavor composition of high-energy astrophysical neutrinos is a rich observable. However, present analyses cannot effectively distinguish particle showers induced by νe vs ντ. We show that this can be accomplished by measuring the intensities of the delayed, collective light emission from muon decays and neutron captures, which are, on average, greater for ντ than for νe. This new technique would significantly improve tests of the nature of astrophysical sources and of neutrino properties. We discuss the promising prospects for implementing it in IceCube and other detectors.
Original language | English |
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Article number | 151101 |
Journal | Physical Review Letters |
Volume | 122 |
Issue number | 15 |
Number of pages | 7 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 16 Apr 2019 |
Keywords
- astro-ph.HE
- hep-ph