2013/08/09 by P. Lipari, Lipari, Paolo · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Radio Astronomy Observations and Technology
paper · pdf · doi:10.48550/arxiv.1308.2086
openalex publication_date 2013/08/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Recently the IceCube collaboration has reported the observation of 28\ncontained events with a visible energy in the interval between 60 TeV and 1.5\nPeV, and has argued that this detection is evidence, with a statistical\nsignificance of more than four standard deviations, for the existence of an\nastrophysical neutrino flux that accounts for a large fraction of the events.\nIn this work we analyze the arguments that allow to identify a component of\nastrophysical origin in the high energy neutrino flux separating it from\natmospheric neutrinos. An astrophysical origin for a large fraction of the\nIceCube contained events is the simplest and most natural explanation of the\ndata but, conservatively, an atmospheric origin cannot yet be entirely ruled\nout. This ambiguity should soon be resolved.\n