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Diffuse PeV neutrinos from EeV cosmic ray sources: Semirelativistic hypernova remnants in star-forming galaxies

Liu, Ruo-Yu; Wang, Xiang-Yu; Inoue, Susumu; Crocker, Roland; Aharonian, F


We argue that the excess of sub-PeV/PeV neutrinos recently reported by IceCube could plausibly originate through pion-production processes in the same sources responsible for cosmic rays (CRs) with energy above the second knee around 1018eV. The pion-production efficiency for escaping CRs that produce PeV neutrinos is required to be 0.1 in such sources. On the basis of current data, we identify semirelativistic hypernova remnants as possible sources that satisfy the requirements. By virtue of...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Physical Review D-Particles, Fields, Gravitation and Cosmology
DOI: 10.1103/PhysRevD.89.083004
Access Rights: Open Access


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