Bounds on the cosmogenic neutrino flux

Z. Fodor, S. D. Katz, A. Ringwald, H. Tu

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


Under the assumption that some part of the observed highest energy cosmic rays consists of protons originating from cosmological distances, we derive bounds on the associated flux of neutrinos generated by inelastic processes with the cosmic microwave background photons. We exploit two methods. First, a power-like injection spectrum is assumed. Then, a model-independent technique, based on the inversion of the observed proton flux, is presented. The inferred lower bound is quite robust. As expected, the upper bound depends on the unknown composition of the highest energy cosmic rays. Our results represent benchmarks for all ultra high energy neutrino telescopes.

Original languageEnglish (US)
Pages (from-to)247-259
Number of pages13
JournalJournal of Cosmology and Astroparticle Physics
Issue number11
StatePublished - Nov 2003

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics


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