Cosmogenic neutrinos and ultra-high energy cosmic ray models

May 15, 2015
16 pages
Published in:
  • JCAP 10 (2015) 006
  • Published: Oct 2, 2015
e-Print:

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Abstract: (IOP)
We use an updated version of SimProp, a Monte Carlo simulation scheme for the propagation of ultra-high energy cosmic rays, to compute cosmogenic neutrino fluxes expected on Earth in various scenarios. These fluxes are compared with the newly detected IceCube events at PeV energies and with recent experimental limits at EeV energies of the Pierre Auger Observatory. This comparison allows us to draw some interesting conclusions about the source models for ultra-high energy cosmic rays. We will show how the available experimental observations are almost at the level of constraining such models, mainly in terms of the injected chemical composition and cosmological evolution of sources. The results presented here will also be important in the evaluation of the discovery capabilities of the future planned ultra-high energy cosmic ray and neutrino observatories.
Note:
  • 15 pages, 8 figures, some reference added, version accepted for publication in JCAP
  • cosmic radiation: UHE
  • cosmic radiation: model
  • numerical calculations: Monte Carlo
  • observatory
  • cosmic radiation: propagation
  • neutrino: flux
  • IceCube
  • cosmic background radiation
  • pi
  • nucleon