Abstract
The announcement by the IceCube Collaboration of the observation of 53 astrophysical neutrino candidates in the energy range has been greeted with a great deal of justified excitement. Herein we provide fits of single and a broken power-law energy-spectra to these high-energy starting events (HESEs). By comparing our statistical results from fits to (background-free) shower HESE data with the spectral shape of muon neutrinos recently reported by the IceCube Collaboration, we show that there is () evidence for a break in the spectrum of astrophysical neutrinos. After that we use the fitted result to predict the rate of Glashow events (in the region) and double-bang tau neutrino events (in the PeV region) just at the threshold of IceCube detection.
16 More- Received 16 December 2016
DOI:https://doi.org/10.1103/PhysRevD.95.083009
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